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DTSTART;TZID=America/Los_Angeles:20260202T143000
DTEND;TZID=America/Los_Angeles:20260202T153000
DTSTAMP:20260501T211902
CREATED:20251120T224014Z
LAST-MODIFIED:20260202T193027Z
UID:7256-1770042600-1770046200@www.quantumx.washington.edu
SUMMARY:MSE Seminar: François Baneyx
DESCRIPTION:Event interval: Single day eventCampus location: Bagley Hall (BAG)Campus room: 154Accessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: TBD \nAbstract: TBD \nBio: TBD
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-tbd-3/
LOCATION:Bagley Hall (BAG)
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260203T133000
DTEND;TZID=America/Los_Angeles:20260203T143000
DTSTAMP:20260501T211902
CREATED:20260202T190338Z
LAST-MODIFIED:20260202T192223Z
UID:8778-1770125400-1770129000@www.quantumx.washington.edu
SUMMARY:Sasha Giem (Harvard University): A Fault-Tolerant Neutral-Atom Architecture for Universal Quantum Computation
DESCRIPTION:Hybrid option available\, register on event website \n\n\n\n\n\nQuantum error correction enables coherent computation on encoded logical qubits while simultaneously removing errors from the underlying physical qubits. Here we utilize reconfigurable arrays of up to 448 neutral atoms to experimentally explore the key elements of a fault-tolerant quantum processing architecture\, including below-threshold correction\, fault-tolerant gate operations\, universality\, and physical error removal during deep-circuit computation. We first demonstrate performance of 2.14(13)x below-threshold in a four-round characterization circuit on individual surface codes\, leveraging loss detection and machine learning decoding. We further explore the physics of repeated error correction in logical entanglement based on transversal gates and lattice surgery and extend to universal logic using transversal teleportation with 3D color codes for analog-angle synthesis. Finally\, we demonstrate a method for mid-circuit qubit re-use\, increasing the experimental cycle rate by two orders of magnitude and implementing deep-circuit protocols involving hundreds of logical teleportations while maintaining constant internal entropy. These results establish foundations for scalable\, universal error-corrected processing and its practical implementation with neutral atom systems
URL:https://www.quantumx.washington.edu/calendar/sasha-giem-harvard-university-a-fault-tolerant-neutral-atom-architecture-for-universal-quantum-computation/
LOCATION:PAB C421\, 3910 15th Ave NE\, Seattle\, WA\, 98195
CATEGORIES:Physics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260205T123000
DTEND;TZID=America/Los_Angeles:20260205T133000
DTSTAMP:20260501T211902
CREATED:20260202T185420Z
LAST-MODIFIED:20260202T190028Z
UID:8760-1770294600-1770298200@www.quantumx.washington.edu
SUMMARY:Joyce Kwan (CU Boulder): Realization of a Pfaffian quantum Hall state with ultracold bosons nbsp
DESCRIPTION:Speaker: Joyce Kwan\, CU BoulderThe Pfaffian (Moore-Read) wavefunction\, proposed to describe the u = 5/2 fractional quantum Hall state\, encodes a paired p-wave superfluid and hosts non-Abelian anyons relevant for topological quantum computation. We report the realization of a three-particle Pfaffian quantum Hall state of ultracold bosons. Using the single-atom control of our quantum simulator\, we engineer and probe the state via a machine-learning–optimized ramp that connects a simple initial state to the Pfaffian. The resulting low-temperature state reveals the characteristic pairing physics of the Pfaffian wavefunction\, establishing a controlled route toward synthetic fractional quantum Hall states in atomic platforms.
URL:https://www.quantumx.washington.edu/calendar/joyce-kwan-cu-boulder-realization-of-a-pfaffian-quantum-hall-state-with-ultracold-bosons-nbsp/
LOCATION:PAB C520
CATEGORIES:Physics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260206T133000
DTEND;TZID=America/Los_Angeles:20260206T143000
DTSTAMP:20260501T211902
CREATED:20251230T224730Z
LAST-MODIFIED:20260407T182334Z
UID:8271-1770384600-1770388200@www.quantumx.washington.edu
SUMMARY:William Kretschmer (University of Texas at Austin)\, QISE Seminar: Demonstrating an unconditional separation between quantum and classical information resources
DESCRIPTION:Abstract: \n\n\n\nA longstanding question in the foundations of quantum mechanics is whether the exponential state space of a quantum system is a physically accessible resource\, or whether the observed behavior of quantum devices admits a succinct classical explanation. In this talk I will discuss an experimental work in which\, leveraging quantum-classical separations in communication complexity\, we performed a task using 12 trapped-ion qubits that would provably require at least 62 bits of storage to replicate using classical information resources. Consequently\, no classical ontological model of fewer than 62 bits can explain the observed behavior of the 12-qubit system. Our separation does not rely on any unproven conjectures\, and demonstrates how today’s quantum processors can generate and manipulate entangled states of sufficient complexity to access the exponentiality of Hilbert space. Based on arXiv:2509.07255. \n\n\n\nSpeaker Bio: \n\n\n\nWilliam Kretschmer is an Assistant Professor in the Department of Computer Science at UT Austin. Previously\, was a Quantum Postdoctoral Fellow at the Simons Institute for the Theory of Computing. His research lies broadly in quantum information and computation\, with connections to complexity theory\, cryptography\, and learning. Kretschmer is especially interested in understanding computational problems that involve operation on quantum inputs.
URL:https://www.quantumx.washington.edu/calendar/william-kretschmer-university-of-texas-at-austin/
LOCATION:Electrical and Computer Engineering (ECE)\, Room 037\, 185 W Stevens Wy NE\, Seattke\, Washington\, 98185
CATEGORIES:Computer Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260209T143000
DTEND;TZID=America/Los_Angeles:20260209T153000
DTSTAMP:20260501T211902
CREATED:20251120T223128Z
LAST-MODIFIED:20260209T203026Z
UID:7257-1770647400-1770651000@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Xiaoyang Zhu
DESCRIPTION:Event interval: Single day event\nCampus location: Bagley Hall (BAG)\nCampus room: 154\nAccessibility Contact: Matthew Yankowitz\, myank@uw.edu\nEvent Types: Lectures/Seminars \nTitle: TBD \nAbstract: TBD \nBio: TBD
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-xiaoyang-zhu/
LOCATION:Bagley Hall (BAG)
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260209T160000
DTEND;TZID=America/Los_Angeles:20260209T160000
DTSTAMP:20260501T211902
CREATED:20251218T214532Z
LAST-MODIFIED:20260202T174609Z
UID:8016-1770652800-1770652800@www.quantumx.washington.edu
SUMMARY:Ben Lev\, Stanford University
DESCRIPTION:PAA A-102Colloquiahttps://phys.washington.edu/events/2026-02-09/tba
URL:https://www.quantumx.washington.edu/calendar/ben-lev-stanford-university/
LOCATION:PAA A-102
CATEGORIES:Physics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260210T133000
DTEND;TZID=America/Los_Angeles:20260210T143000
DTSTAMP:20260501T211902
CREATED:20260202T191115Z
LAST-MODIFIED:20260202T191123Z
UID:8783-1770730200-1770733800@www.quantumx.washington.edu
SUMMARY:Caroline Robin (Bielefeld University)
DESCRIPTION:Hybrid option Available\, register on event website
URL:https://www.quantumx.washington.edu/calendar/caroline-robin-bielefeld-university/
LOCATION:PAB C421\, 3910 15th Ave NE\, Seattle\, WA\, 98195
CATEGORIES:Physics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260210T193000
DTEND;TZID=America/Los_Angeles:20260210T203000
DTSTAMP:20260501T211902
CREATED:20260113T180747Z
LAST-MODIFIED:20260202T195121Z
UID:8481-1770751800-1770755400@www.quantumx.washington.edu
SUMMARY:Krysta Svore (NVIDIA)\, UW Public Lecture in QISE: Designing the Accelerated Quantum Supercomputer: AI‑First\, Real‑Time Required
DESCRIPTION:
URL:https://www.quantumx.washington.edu/krysta-svore-nvidia-uw-public-lecture-in-quantum-science-and-engineering-rsvp/#new_tab
LOCATION:Kane Hall 130\, 4069 Spokane Ln NE\, Seattle\, Washington\, 98105
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260211T113000
DTEND;TZID=America/Los_Angeles:20260211T123000
DTSTAMP:20260501T211902
CREATED:20251209T191940Z
LAST-MODIFIED:20260210T210041Z
UID:7691-1770809400-1770813000@www.quantumx.washington.edu
SUMMARY:Chemistry Seminar: Sijia Dong
DESCRIPTION:Event interval: Single day eventCampus location: Chemistry Building (CHB)Campus room: CHB 102Accessibility Contact: chem59x@uw.eduEvent Types: Academics\,Lectures/SeminarsLink: https://cos.northeastern.edu/people/sijia-dong/ \n"Computational Strategies for Photoenzyme Design: Physics-Based Simulations\, Data-Driven Approaches\, and Quantum Computing"Assistant Professor Sijia Dong – Department of Chemistry and Chemical Biology\, Northeastern UniversityHost: Xiaosong Li \nPhotoenzymes are emerging protein-based photocatalysts that are repurposed from natural enzymes for non-natural reactions difficult for small-molecule catalysts. They exhibit extraordinary selectivity\, scalability\, and tunability\, and offer a promising new toolbox for solar to chemical energy conversion and chemical synthesis. However\, the understanding and design of photoenzymes pose several challenges. First\, accurate first-principles simulations of the electronic structure of macromolecules are usually computationally expensive\, especially those that involve strong electron correlation. In this talk\, I will discuss our computational strategies\, including data-driven methods and quantum computing to tackle this challenge. Second\, existing enzyme design strategies do not consider electronic excited states\, and photoenzyme engineering has mainly relied on directed evolution. I will discuss our work on physics-informed computational photoenzyme design\, where we combine physics-based simulations and data-driven methods to demonstrate that microenvironment tuning is a promising design strategy for photoenzymes and other macromolecular photocatalysts.                       Dr. Sijia Dong is an assistant professor in the Department of Chemistry and Chemical Biology at Northeastern University\, with affiliations in the Department of Physics and the Department of Chemical Engineering. She received her PhD in Chemistry from California Institute of Technology in 2017\, advised by Prof. William A. Goddard III. She carried out her postdoctoral research at the University of Minnesota with Prof. Donald G. Truhlar and Prof. Laura Gagliardi\, and then at Argonne National Laboratory with Prof. Giulia Galli. Research in the Dong Lab focuses on developing and applying physics-based and data-driven computational methods on both classical and quantum computers to accelerate chemical discoveries. Sijia has been selected a Scialog Fellow for Automating Chemical Laboratories by Research Corporation for Science Advancement\, has won the American Chemical Society COMP OpenEye Cadence Molecular Sciences Outstanding Junior Faculty Award\, the Inter-American Photochemical Society Young Investigator Award\, and the Northeastern University College of Science Excellence in Mentorship Award\, has a Maximizing Investigators’ Research Award for Early Stage Investigators from the National Institutes of Health\, and is recognized as an Emerging Investigator by the Journal of Chemical Physics\, American Institute of Physics. Sijia also co-chairs the Early Career Board of the Journal of Chemical Theory and Computation.  
URL:https://www.quantumx.washington.edu/calendar/chemistry-seminar-prof-sijia-dong/
LOCATION:Chemistry Building (CHB)
CATEGORIES:Chemistry
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260213T133000
DTEND;TZID=America/Los_Angeles:20260213T143000
DTSTAMP:20260501T211902
CREATED:20251230T224908Z
LAST-MODIFIED:20260407T182043Z
UID:8273-1770989400-1770993000@www.quantumx.washington.edu
SUMMARY:Michael Beverland (IBM)\, QISE Seminar: Real-time decoding for fault-tolerant quantum computers
DESCRIPTION:Abstract: Fault-tolerant quantum computers involve running circuits on quantum hardware that sometimes undergo faults in such a way that the faults can be identified and fixed to ensure the quantum computation runs reliably. To do this\, information is protected in a quantum error correcting code\, and carefully-designed logical operations are carried out on the protected information\, with information about the noise that arises during the entire process being generated in a continuous stream of classical output called the syndrome. Decoding is the task of taking the syndrome data and using it to identify what faults occurred so that they can be fixed. This decoding task is run on a classical computer\, and is needed to make the quantum computer work – but it is a very challenging unsolved problem to design a decoding algorithm that performs well enough in practice.Real-time decoding for fault tolerance is a central challenge as we move beyond NISQ. The decoding timescale is set by the QEC cycle time of the hardware\, which is microseconds for superconducting platforms. Meeting this constraint likely requires specialized classical hardware such as FPGAs or ASICs\, whose high degree of parallelism changes the relative performance of decoding algorithms\, for example allowing Gaussian elimination to run in linear parallel time on FPGAs rather than cubic time on CPUs\, and therefore motivates hardware-aware redesign rather than direct porting of CPU-based methods.In this talk\, I discuss recent progress toward real-time decoding under these constraints\, and argue that message-passing decoders\, particularly the Relay-BP algorithm\, offer a promising route to real-time decoding. Relay-BP improves on the convergence of standard belief propagation while retaining a lightweight\, highly parallel structure suitable for FPGA implementation\, and significantly outperforms alternative decoders for quantum LDPC codes.Beyond average decoding speed\, I address the backlog problem that arises from variable decoding latency. I present conditions on decoder latency distributions under which fast average-case decoding and sufficiently light latency tails allow decoding to keep pace with syndrome generation\, ensuring bounded computational slowdown in large-scale fault-tolerant computations. \n\n\n\n \n\n\n\nLinkedIn: Michael Beverland
URL:https://www.quantumx.washington.edu/calendar/michael-beverland-ibm/
LOCATION:Electrical and Computer Engineering (ECE)\, Room 037\, 185 W Stevens Wy NE\, Seattke\, Washington\, 98185
CATEGORIES:Electrical & Computer Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260219T123000
DTEND;TZID=America/Los_Angeles:20260219T123000
DTSTAMP:20260501T211902
CREATED:20260202T185653Z
LAST-MODIFIED:20260202T190003Z
UID:8763-1771504200-1771504200@www.quantumx.washington.edu
SUMMARY:Kirk Madison (University of British Columbia): Tuning the sharpness of quantum measurements using position entangled atomic states
DESCRIPTION:Speaker: Kirk Madison\, University of British ColumbiaAs rigorously proven by Paul Busch in 2007\, quantum systems are necessarily disturbed by measurement .  The amount of disturbance\, interpreted here as state change\, is related to the information gained\, hence a measurement scheme that induces no state change yields no new information. Standard projective measurements\, such as the measurement of an excited state energy (with respect to the groundstate) by coupling a quantum system to a photon and then detecting the photon absorption\, are maximally disruptive since they project the initial state of the system into an eigenstate of the measured observable.  By contrast\, so-called weak measurements provide an observer with little information and\, in turn\, disrupt the quantum state very little.  Also\, known as ‘unsharp’\, ‘fuzzy’ or ‘gentle’\, such measurements have been considered in the context of measuring the quantum trajectory of a system using weak continuous measurements . One scheme for implementing unsharp measurements is to first entangle a target quantum system with an ancillary quantum system and then carry out a measurement on the ancilla.  By adjusting the degree of entanglement\, the sharpness of the measurement on the target system can be controlled. In this talk\, we explore how tunable position-entangled quantum states of atoms can be used to realize tunable quantum measurements.  Entangled states of atomic pairs are created by Feshbach resonance coupling and measurements of the ancilla are conducted either by ancilla selective scattering of single photons or by hard collisional localization of the ancilla by the scattering of room-temperature atoms in the background vapor of the apparatus.
URL:https://www.quantumx.washington.edu/calendar/kirk-madison-university-of-british-columbia-tuning-the-sharpness-of-quantum-measurements-using-position-entangled-atomic-states/
LOCATION:PAB B421
CATEGORIES:Physics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260220T133000
DTEND;TZID=America/Los_Angeles:20260220T143000
DTSTAMP:20260501T211902
CREATED:20251230T225057Z
LAST-MODIFIED:20260407T182625Z
UID:8275-1771594200-1771597800@www.quantumx.washington.edu
SUMMARY:Daniel Higginbottom (Simon Fraser University)\, QISE Seminar: Engineering silicon colour centres for quantum networks
DESCRIPTION:Abstract \n\n\n\nThe performance of quantum networks for long-distance communication\, sensing\, and distributed quantum computing will be contingent upon the quality of their light-matter interconnects. For networks at scale\, these interconnects should be manufacturable and deployable. Solid-state colour centres are single-photon emitters which may offer optically-coupled spin qubit registers for deployable entanglement distribution networks. Of the potential semiconductor hosts\, silicon is an ideal platform for commercial quantum technologies. It is a “semiconductor vacuum” with record-setting spin qubit performance\, and silicon nanofabrication is an advanced industrial process and the backbone of the microelectronics industry. Although they were neglected until quite recently\, silicon colour centres are now established as a quantum platform with technological appeal: they emit in or near the optical telecommunications bands\, host intrinsic spin qubit registers\, and integrate directly with photonic and electronic circuits on chip. In this talk I will discuss progress towards networked silicon colour centre devices and identify emerging candidates from the rapidly expanding alphabet of silicon colour centres. In particular\, I will summarize recent results with the T centre\, a CCH defect in silicon. A surprising isotope-dependent lifetime effect suggests that the T centre can be made almost perfectly efficient by isotopic substitution. Cavity-integrated T centres show dramatic Purcell enhancements\, enabling faster and more coherent emission\, and indistinguishable emission is employed to entangle T centres on separate chips\, six meters apart. Determining the hyperfine tensors of the T centre’s intrinsic spin qubits reveals unusual schemes for protecting spin coherence during entanglement attempts. Finally\, a new class of opto-electronic devices combining single emitters\, optical resonators\, and diodes enable a host of spin-photon control techniques including electrically-injected single-photon emission\, Stark tuning\, and electrical spin initialization. These results illustrate how silicon colour centres may be deployed as an on-chip spin-photon quantum processor\, and how these processors may be connected over optical fibre in a metropolitan-scale quantum internet.Bio  \n\n\n\nDr Daniel Higginbottom is an Assistant Professor in the Simon Fraser University Department of Physics and a Director at the quantum technology company Photonic Inc. His research has spanned quantum information with platforms including integrated photonics\, optically trapped atoms\, electrically trapped ions\, and silicon spin qubits\, for which he received a Banting Research Fellowship. His achievements include benchmark results with single photon sources and optical quantum memories. Recently\, he has pioneered the device integration of silicon colour centres\, most notably the T centre\, for quantum technologies. The primary goal of his research is developing practical\, and scalable\, quantum technology platforms.
URL:https://www.quantumx.washington.edu/calendar/daniel-higginbottom-simon-fraser-university/
LOCATION:Electrical and Computer Engineering (ECE)\, Room 037\, 185 W Stevens Wy NE\, Seattke\, Washington\, 98185
CATEGORIES:Electrical & Computer Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260223T143000
DTEND;TZID=America/Los_Angeles:20260223T153000
DTSTAMP:20260501T211902
CREATED:20251120T224014Z
LAST-MODIFIED:20260223T201526Z
UID:7258-1771857000-1771860600@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Aaron Sharpe
DESCRIPTION:Event interval: Single day eventCampus location: Bagley Hall (BAG)Campus room: 154Accessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Quantum Electronic Phases in Twisted Trilayer Graphene \nAbstract: Stacking layers of van der Waals materials with an interlayer twist modulates interlayer hopping on the moiré length scale\, enabling control over electronic band structure. We can extend upon this paradigm by introducing a third twisted layer. The system now contains two interfering moiré patterns that modulate the effective local electronic properties on a longer supermoiré length scale. Here\, I will provide two vignettes about the supermoiré system of twisted trilayer graphene. Together\, these studies establish an organizing framework for the correlated phases in twisted trilayer graphene. They reveal a direct correspondence between superconductivity and thermodynamic signatures of electronic correlations. Additionally they suggest a sensitive interplay of the supermoiré modulation and lattice relaxation that dictates the resultant phenomenology. \nFirst\, we will focus on a narrow region of the ‘angle-angle’ space that determines this trilayer structure. Using a scanning single-electron transistor\, we map the impact of electron-electron interactions as a function of twist angle in the sample. We observe gapped correlated insulators and a ‘sawtooth’ in electronic compressibility. Subsequent transport measurements in the same region reveal robust superconductivity. Our measurements indicate that superconductivity is not directly tied to the correlated insulators. Rather\, its critical temperature correlates closely with the strength of the sawtooth in compressibility\, possibly suggesting a common origin or link between the two. \nSecond\, I will discuss how the electronic phases evolve across a broad range of twist angles whose twist angles lie along two continuous lines in the twist-angle parameter space. Different points along these lines exhibit differing phenomenology\, pointing to other variables beyond twist-angle. Theoretical calculations that lattice relaxation in twisted trilayer graphene depends sensitively on both the magnitude and the relative handedness of the angles. \nBio: Dr. Aaron Sharpe is an Associate Scientist at SLAC National Laboratories and Stanford University\, having received his Ph.D. in Applied Physics from Stanford University in 2020 and following a Truman Fellowship at Sandia National Laboratories from 2020 to 2023. Aaron has made a number of key contributions to the world of van der Waals systems\, including the discovery of orbital ferromagnetism in twisted bilayer graphene for which he was awarded UIUC's prestigious McMillan award. His work further includes some of the first evidence of strong correlations in rhombohedral graphene systems. At present\, Aaron focuses on exploring strong correlations in various trilayer moiré systems and rhombohedral graphene systems in the absence of a moiré potential.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-tbd-4/
LOCATION:Bagley Hall (BAG)
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260223T160000
DTEND;TZID=America/Los_Angeles:20260223T160000
DTSTAMP:20260501T211902
CREATED:20251218T214822Z
LAST-MODIFIED:20260202T174609Z
UID:8017-1771862400-1771862400@www.quantumx.washington.edu
SUMMARY:Liang Fu\, MIT: TBA
DESCRIPTION:PAA A-102Colloquiahttps://phys.washington.edu/events/2026-02-23/tba
URL:https://www.quantumx.washington.edu/calendar/liang-fu-mit-tba/
LOCATION:PAA A-102
CATEGORIES:Physics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260226T103000
DTEND;TZID=America/Los_Angeles:20260226T113000
DTSTAMP:20260501T211902
CREATED:20260226T201913Z
LAST-MODIFIED:20260226T201914Z
UID:9044-1772101800-1772105400@www.quantumx.washington.edu
SUMMARY:UW ECE Research Colloquium Lecture Series: Yanjie Shao\, Massachusetts Institute of Technology
DESCRIPTION:Campus location: Electrical and Computer Engineering Building (ECE)Campus room: ECE 037Accessibility Contact: events@ece.uw.edu \nEvent Link \nUltra-Scaled Energy-Efficient Electronics \nAbstract  \nThe explosive growth of data-centric computing in the era of artificial intelligence has made energy efficiency a central challenge for modern microelectronics. Two fundamental limitations now dominate: (1) the “power wall”\, where stalled voltage scaling in advanced complementary metal–oxide–semiconductor (CMOS) technologies has largely limited further reductions in transistor switching energy\, and (2) the “memory wall”\, where data movement between computing and memory units increasingly dominates energy cost and restricts information throughput. In this talk\, I will present two complementary approaches\, leveraging new material systems and nanoscale processing to enable unprecedented device operating regimes and scalable 3D integration paradigms beyond conventional CMOS scaling. First\, I target a supply voltage ≤ 0.3 V by exploiting quantum-mechanical tunneling in a broken-band heterojunction semiconductor system (GaSb/InAs). I will show that a combination of sub-thermionic turn-on\, high drive current and ultimate device scalability can be achieved simultaneously in a vertical-nanowire tunneling transistor configuration. Second\, I will describe a low-thermal-budget (≤ 400 °C) electronic technology integration platform enabled by amorphous oxide semiconductors (AOS) and ferroelectric (FE) hafnium-zirconium oxide. By exploiting plasma-enhanced atomic-layer deposition\, enhancement-mode AOS transistors with record logic performance are realized\, and nanoscale FE memory transistors comprising a single domain are demonstrated. Together\, these results highlight how emerging materials can drivehigh-performance and multifunctional devices that unlock new pathways for future energy-efficient 3D electronics. \nBiography  \nYanjie Shao is currently a postdoctoral researcher at the Massachusetts Institute of Technology (MIT) in the Microsystems Technology Laboratories (MTL)\, working with Prof. Jesús del Alamo and Prof. Dimitri Antoniadis. He received his Ph.D. (2023) and S.M. (2021) in Electrical Engineering from MIT\, advised by Prof. Jesús del Alamo\, and his B.S. in Physics from the University of Science and Technology of China (USTC). His research focuses on addressing fundamental materials\, device\, and integration challenges to advance energy-efficient semiconductor and microelectronics technologies. He is a recipient of the 2023 Intel Outstanding Researcher Award.
URL:https://www.quantumx.washington.edu/calendar/uw-ece-research-colloquium-lecture-series-yanjie-shao-massachusetts-institute-of-technology/
LOCATION:Electrical and Computer Engineering (ECE)\, Room 037\, 185 W Stevens Wy NE\, Seattke\, Washington\, 98185
CATEGORIES:Electrical & Computer Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260227T133000
DTEND;TZID=America/Los_Angeles:20260227T143000
DTSTAMP:20260501T211902
CREATED:20260213T233605Z
LAST-MODIFIED:20260407T182726Z
UID:8979-1772199000-1772202600@www.quantumx.washington.edu
SUMMARY:Evan Reed (IonQ)\, QISE Seminar: Flipping Molecules: An Experimental Demonstration of Dipole-Phonon Quantum Logic
DESCRIPTION:Abstract  \n\n\n\nTrapped atomic ions are one of the leading candidates for large-scale quantum technologies\, and many decades of research have gone into developing the techniques to coherently control the quantum states of atomic ions to make them a viable platform for engineering quantum technologies. The applications range from computation to communication networks to sensing. Molecular ions\, however\, remain under-researched. While their wealth of internal states makes them interesting candidates for quantum technologies\, it also makes them difficult to control. Here\, we demonstrate that by using the electric potential of the ion trap we can coherently\, and without lasers\, induce a transition between two internal states of a single molecular ion (CaO+) by means of a Jaynes-Cummings-type interaction. Then\, we use a co-trapped atomic ion (Ca+) to herald and measure the interaction via quantum logic spectroscopy. This procedure\, named dipole-phonon quantum logic (DPQL)\, enables state preparation and measurement of quantum information encoded in a molecular ion. Here\, I present the first demonstration of DPQL. We have shown the interaction signals to have a lower bound on the statistical significance as high as 4.92σ and posterior probability greater than 99%.  \n\n\n\nBio \n\n\n\nEvan Reed is an Atomic Physicist on the Science Team at the quantum technology company IonQ. He grew up in Georgia in the foothills of southern Appalachia\, and he attended the Georgia Institute of Technology for his BS in physics. There\, he trained in ion trapping under the guidance of Prof. Ken Brown. As Evan graduated from GT\, the Brown Lab moved from GT to Duke University. Evan rejoined the Brown lab at Duke as a PhD student in the department of electrical and computer engineering where he performed research in the coherent control of trapped molecular ions. Evan defended his dissertation in May of 2024 after which he joined IonQ and moved to Seattle. At IonQ\, he now works on the team that builds the prototypes of the most advanced generation of quantum computers and performs technology development for future generation systems. 
URL:https://www.quantumx.washington.edu/calendar/evan-reed-ionq-qise-seminar/
LOCATION:Electrical and Computer Engineering (ECE)\, Room 037\, 185 W Stevens Wy NE\, Seattke\, Washington\, 98185
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