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公开(公告)号：US11522117B2
公开(公告)日：2022-12-06
申请号：US17151763
申请日：2021-01-19
Applicant: Massachusetts Institute of Technology
Inventor： Dirk Robert Englund , Matthew Edwin Trusheim , Matt Eichenfield , Tomas Neuman , Prineha Narang
Abstract: A hybrid quantum system performs high-fidelity quantum state transduction between a superconducting (SC) microwave qubit and the ground state spin system of a solid-state artificial atom. This transduction is mediated via an acoustic bus connected by piezoelectric transducers to the SC microwave qubit. For SC circuit qubits and diamond silicon vacancy centers in an optimized phononic cavity, the system can achieve quantum state transduction with fidelity exceeding 99% at a MHz-scale bandwidth. By combining the complementary strengths of SC circuit quantum computing and artificial atoms, the hybrid quantum system provides high-fidelity qubit gates with long-lived quantum memory, high-fidelity measurement, large qubit number, reconfigurable qubit connectivity, and high-fidelity state and gate teleportation through optical quantum networks.
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公开(公告)号：US20240255699A1
公开(公告)日：2024-08-01
申请号：US18393392
申请日：2023-12-21
Applicant: The Regents of the University of California , Massachusetts Institute of Technology , National Technology & Engineering Solutions of Sandia, LLC
Inventor： Daniel J. Blumenthal , Matt Eichenfield , Dirk Englund , Mikkel Heuck
IPC: G02B6/122
CPC classification number: G02B6/1228
Abstract: Systems and methods for hybrid integration of ultra-low loss waveguide photonic circuits with various efficient on-chip elements are described. The photonic circuits can integrate various elements including (but not limited to): gain, modulation, detection, and nonlinear optical elements. The integrated photonic chips can be manufactured in a flexible, reconfigurable, 3D heterogeneous platform. The integrated photonic chips can cover wavelength ranges from the visible wavelength to infrared wavelength.
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