• Technical Conference: 

    09 – 14 May 2021

  • Exhibition: 

    10 – 14 May 2021

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Quantum Transduction

Presider: Elizabeth Goldschmidt, Univ of Illinois at Urbana-Champaign

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Engineering Spin-Phonon Coupling Rates for the Silicon Vacancy Center in Diamond Phononic Crystal Cavities (JW4L.1)
Presenter: Cleaven Chia, Harvard University

We design diamond phononic crystal cavities to couple GHz phonons to silicon vacancy center spin qubits, with coupling rates of 1.45-3.63 MHz that would enable strong coherent spin-phonon interactions at cryogenic temperature ~ 4K.

Authors:Cleaven Chia, Harvard University / Michelle Chalupnik, Harvard University / Marko Loncar, Harvard University


Optomechanical Spin Control of Nitrogen-Vacancy Centers in Diamond (JW4L.2)
Presenter: Prasoon Kumar Shandilya, University of Calgary

We demonstrate optomechanical manipulation of nitrogen-vacancy electron spins in a diamond cavity for the first time. Our work paves the way for the realization of quantum networks at room temperature based on phonon-spin coupling.

Authors:Prasoon Kumar Shandilya, University of Calgary / David Lake, University of Calgary / Matthew Mitchell, University of Calgary / Denis Sukachev, University of Calgary / Paul Barclay, University of Calgary


Microwave to Optical Frequency Conversion Using Rare Earth Crystals (JW4L.3)
Presenter: Rose Ahlefeldt, The Australian National University

Crystals fully concentrated in the rare earth ion erbium have potential as single-photon frequency converters for quantum computing. When magnetically ordered, these crystals offer a magnon transition at microwave frequencies, an optical transition in the telecom band, and a strong magneto-optical nonlinearity for frequency conversion. I will discuss modelling that suggests unit efficiency is possible and describe our early experimental implementations of a frequency converter in these crystals.

Authors:Rose Ahlefeldt, The Australian National University / Matthew Berrington, The Australian National University / Jevon Longdell, The University of Otago


Quantum Control of Microwave-to-Optical Transducers for Inhomogeneous Broadening Compensation (JW4L.4)
Presenter: Sattwik Deb Mishra, Stanford University

We use numerical optimization to design the temporal shape of the laser field driving an inhomogeneous ensemble of quantum emitters in order to restore superradiance effects and improve single photon microwave-to-optical transduction efficiencies.

Authors:Sattwik Deb Mishra, Stanford University / Rahul Trivedi, Stanford University / Amir Safavi-Naeini, Stanford University / Jelena Vuckovic, Stanford University


(Withdrawn) Microwave Quantum Illumination Based on Cavity Magnonics (JW4L.5)
Presenter: Qizhi Cai, Univ. of Elec. Sci. and Tech. of China

We propose a microwave-optical entanglement source based on cavity magnonics and analyze its performance in the application of microwave quantum illumination. Our results pave the way for developing quantum enhanced sensing via magnonic systems.

Authors:Qizhi Cai, Univ. of Elec. Sci. and Tech. of China / Jinkun Liao, Univ. of Elec. Sci. and Tech. of China / Bohai Shen, Univ. of Elec. Sci. and Tech. of China / Guang-Can Guo, Univ. of Elec. Sci. and Tech. of China / Qiang Zhou, Univ. of Elec. Sci. and Tech. of China

A Vertically Loaded Diamond Microdisk Resonator (VLDMoRt) Towards a Scalable Quantum Network (JW4L.6)
Presenter: Yuqin Duan, MIT

We design and fabricate a vertically loaded diamond microdisk resonator(VLDMoRt) that enhances spin-photon entanglement generation and free-space fiber-matched coupling rate from quantum emitters.

Authors:Yuqin Duan, MIT / Kevin Chen, MIT / Dirk Englund, MIT / Matthew Trusheim, MIT


Simulation, Fabrication and Control of Nanophotonic Circuits Including Diamond-Based Quantum Emitters (JW4L.7)
Presenter: Jan Olthaus, University of Muenster

Simultaneous access to several solid-state spin systems with Purcell-enhanced coupling of single photons into photonic integrated circuits is demonstrated. Photonic crystal cavities embedded in tantalum pentoxide waveguides enable optical detection of magnetic resonances.

Authors:Jan Olthaus, University of Muenster / Philip Schrinner, University of Muenster / Carsten Schuck, University of Muenster / Doris Reiter, University of Muenster