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Catching Microwave Photons in a Superconducing Resonator with Tunable Coupling

J. Wenner, Yi Yin, Yu Chen +12 more

Bulletin of the American Physical SocietyMar 19, 20130 citations

Improving microwave single photon detection efficiency with shaped photon capture

A. Narla, Shyam Shankar, Shantanu Mundhada +7 more

Bulletin of the American Physical SocietyMar 13, 20170 citations

Catch and Release of Microwave Photons

Yi Yin

Bulletin of the American Physical SocietyMar 3, 20140 citations

Catching Time-Reversed Microwave Coherent State Photons with 99.4% Absorption Efficiency

J. Wenner, Yi Yin, Yu Chen +15 more

We demonstrate a high-efficiency deterministic quantum receiver to convert flying qubits to stationary qubits. We employ a superconducting resonator, which is driven with a shaped pulse through an adjustable coupler. For the ideal ``time-reversed'' shape, we measure absorption and receiver fidelities at the single microwave photon level of, respectively, 99.41% and 97.4%. These fidelities are comparable with gates and measurement and exceed the deterministic quantum communication and computation fault-tolerant thresholds, enabling new designs of deterministic qubit interconnects and hybrid quantum computers.We demonstrate a high-efficiency deterministic quantum receiver to convert flying qubits to stationary qubits. We employ a superconducting resonator, which is driven with a shaped pulse through an adjustable coupler. For the ideal ``time-reversed'' shape, we measure absorption and receiver fidelities at the single microwave photon level of, respectively, 99.41% and 97.4%. These fidelities are comparable with gates and measurement and exceed the deterministic quantum communication and computation fault-tolerant thresholds, enabling new designs of deterministic qubit interconnects and hybrid quantum computers.

arXiv:1311.1180Physical Review LettersMay 28, 2014123 citations

Efficiently catching entangled microwave photons from a quantum transducer with shaped optical pumps

Changchun Zhong

A quantum transducer, when working as a microwave and optical entanglement generator, provides a practical way to coherently connect optical communication channels and microwave quantum processors. Recent experiments on a quantum transducer verifying entanglement between the microwave and optical photons show the promise of approaching that goal. While flying optical photons can be efficiently controlled or detected, the microwave photon needs to be stored in a cavity or converted to the excitation of a superconducting qubit for further quantum operations. However, it remains challenging to efficiently capture or detect a single microwave photon with an arbitrary time profile. This work focuses on this challenge in the setting of an entanglement-based quantum transducer and proposes a solution by shaping the optical pump pulse. By Schmidt decomposing the output entangled state, we show that the microwave-optical photon pair takes a specific temporal profile that is controlled by the optical pump. The microwave photon from the transducer can be nearly perfectly absorbed by a receiving cavity with tunable coupling and is ready to be converted to the excitation of superconducting qubits, enabling further quantum operations. Published by the American Physical Society 2024A quantum transducer, when working as a microwave and optical entanglement generator, provides a practical way to coherently connect optical communication channels and microwave quantum processors. Recent experiments on a quantum transducer verifying entanglement between the microwave and optical photons show the promise of approaching that goal. While flying optical photons can be efficiently controlled or detected, the microwave photon needs to be stored in a cavity or converted to the excitation of a superconducting qubit for further quantum operations. However, it remains challenging to efficiently capture or detect a single microwave photon with an arbitrary time profile. This work focuses on this challenge in the setting of an entanglement-based quantum transducer and proposes a solution by shaping the optical pump pulse. By Schmidt decomposing the output entangled state, we show that the microwave-optical photon pair takes a specific temporal profile that is controlled by the optical pump. The microwave photon from the transducer can be nearly perfectly absorbed by a receiving cavity with tunable coupling and is ready to be converted to the excitation of superconducting qubits, enabling further quantum operations. Published by the American Physical Society 2024

arXiv:2409.06108Physical Review ResearchNov 25, 20242 citations

Superconducting microresonators for photon detection

Jonas Stasys Zmuidzinas, Peter K. Day, Jian Gao +7 more

Softwaretechnik-TrendsJan 1, 20070 citations

Catching Classical Shaped Microwave Photons in a Superconducing Resonator with 99.4\% Efficiency

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