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.

This project is supported by IMOD (NSF DMR-2019444)

The entanglement and single photon lab is a commercially available system from QuTools based on an 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.

The QuED is currently available for capstone projects as well as remote lecture demonstrations.  Contact Max Parsons for more information.

This project is supported by IMOD (NSF DMR-2019444)

This quantum processor testbed is based on a single nitrogen-vacancy center in diamond, in which low temperature and resonant laser control enable single shot readout of the qubit register. Just as IBM first envisioned that building a small scale quantum computer would generate interest and solutions in quantum computing, building a small scale quantum control register will generate interest and solutions in the area of quantum control. Access to the Diamond Quantum Control Testbed will enable advances in the areas of quantum noise spectroscopy and decoupling control sequences, open quantum systems, cluster state tomography and entanglement verification, and advancing machine learning in quantum systems. 

The project is supported by NSF award PHY-GRS-2233120.

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.

This project is supported by the Microsoft Corporation.

The ion trap uses high-voltage AC signal to create a quadrupole trapping potential for trapping macroscopic charged particles using methods identical to those used in ion traps for quantum computing. 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.  The video to the left shows the secular mode oscillation of two pollen grains trapped in QT3's ion trap.

This project is supported by a Student Technology Fee grant.

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., where the figure to the left came from.