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Propagating Gottesman-Kitaev-Preskill states encoded in an optical oscillator
Shunya Konno, Warit Asavanant, Fumiya Hanamura +14
A quantum computer with low-error, high-speed quantum operations and capability for interconnections is required for useful quantum computations. A logical qubit called Gottesman-K…
Single-shot single-mode optical two-parameter displacement estimation beyond classical limit
Fumiya Hanamura, Warit Asavanant, Seigo Kikura +8
Uncertainty principle prohibits the precise measurement of both components of displacement parameters in phase space. We have theoretically shown that this limit can be beaten usin…
Superconducting wide strip photon detector with high critical current bank structure
Masahiro Yabuno, Fumihiro China, Hirotaka Terai +1
Superconducting strip single-photon detectors offer excellent photon detection performance and are indispensable tools for cutting-edge optical science and technologies, including…
Efficient low-energy single-electron detection using a large-area superconducting microstrip
Masato Shigefuji, Alto Osada, Masahiro Yabuno +3
Superconducting strip single-photon detectors (SSPDs) are excellent tools not only for single-photon detection but also for single-particle detection owing to their high detection…