Quantum Technologies Training and Testbed Lab (QT3)

The QT3 lab is a unique combined teaching and user facility which provides state-of-the-art optical characterization tools for quantum technologies. The mission of the lab is to provide hands-on access to quantum technology hardware to accelerate both research and training in this growing field.

The QT3 lab’s 800 square-foot facility is located at the heart of campus in the Electrical Engineering Building. QT3 tools and laboratory set-ups can be utilized for teaching labs, capstone projects and research. The QT3 lab is currently under construction with anticipated dates for beta access given to the individual experiments denoted below.

For more information about the QT3 lab contact uwqis@uw.edu.

Quantum Light Microscope

The quantum light microscope is a confocal microscope designed for the analysis of light from single quantum emitters at room temperature. Features include continuous-wave excitation at 532 nm, confocal imaging for single photon emitters, photon purity measurements (g(2)) and single emitter photoluminescence spectroscopy. Combined with a specialized sample which hosts single nitrogen-vacancy center in diamond, the microscope can also be utilized as a single and two qubit quantum register for quantum gate and control experiments. (Autumn 2022)

Coherent Control Lab

This optically-detected magnetic magnetic resonance (ODMR) set-up enables students to perform spin-relaxation measurements on an ensemble of NV centers at room temperature. Features include continuous-wave optically-detected magnetic resonance, Rabi oscillations and dynamic decoupling sequences. The system can also be utilized for other materials systems with optical and RF bands in the experimental range. Finally, the system can be utilized as a testbed for RF quantum control electronics. The lab is based on  Sewani et al. (Autumn 2022)

The entanglement and single photon lab is a commercially available entangled photon pair source based on spontaneous parametric down conversion (PDC). Capabilities include one and two-qubit tomography, quantum key distribution, violation of Bell’s inequalities, single photon auto-correlation measurement  (g(2)) and Hong-Ou-Mandel interference. (Autumn 2022)

Trapped Ion Simulator

The ion trap simulator uses high-voltage AC signal to create a quadrupole trapping potential for trapping macroscopic charged particles in using methods identical to those used in real ion traps. Students will be able to trap and manipulate individual particles and small collections of particles, study their motion, compensate stray fields and measure parameters of the trap. (Autumn 2022)

Low Temperature Confocal Microscope

The low temperature confocal microscope is a custom 4 Kelvin scanning probe system equipped with a cryogenic optical objective that enables students to probe and characterize color centers at low temperatures and is capable of fast sample exchange. Light is coupled in and out via fiber optics allowing it to share optical excitation and detection capabilities with the Quantum Light Microscope and other optical systems within QT3. (Spring 2023)

Funding

Different activities in the QT3 lab are funded by UW QuantumX, the NSF Science and Technology Center IMOD (NSF DMR-2019444), NSF award PHY-GRS-2233120 and NSF award OMA-1936932. Space is provided by UW ECE. The QT3 lab gratefully acknowledges Microsoft for the low temperature confocal cryostat.