activity
20232026
most citedHigh-purity single-photon generation based on cavity QED

10 citations · 30 across the 11 of their papers we have counts for

collaborators

11 papers

quant-ph2026

Strong coupling of a reconfigurable Yb atom array to a tunable telecom-band nanofiber cavity

Hideki Ozawa, Neville Chen, Yusuke Hisai +13

Nanophotonic cavities provide strong atom-photon coupling in a compact, directly fiber-coupled geometry, while a reconfigurable array of Yb atoms combines high-fidelity gat…

quant-ph2026

Scattering theory for cavity-assisted spin-motion-photon interactions

Seigo Kikura, Aruku Senoo, Akihisa Goban +1

Cavity-assisted photon scattering (CAPS) is a powerful mechanism for realizing strong interactions between the internal states of stationary qubits and flying photons, underpinning…

quant-ph2026

Operational criteria for quantum advantage in latency-constrained nonlocal games

Changhao Li, Seigo Kikura, Akihisa Goban +2

Remote entanglement enables coordinated decision making without communication and produces correlations beyond those achievable by any classical strategy, representing a practical…

quant-ph2025

Single-shot conditional displacement gate between a trapped atom and traveling light

Seigo Kikura, Hayato Goto, Fumiya Hanamura +1

We propose a single-shot conditional displacement gate between a trapped atom as the control qubit and a traveling light pulse as the target oscillator, mediated by an optical cavi…

quant-ph2025★ 1 cited

Addressing requirements for crosstalk-free quantum-gate operation in many-body nanofiber cavity QED systems

Tim Keller, Seigo Kikura, Rui Asaoka +3

A distributed network architecture in which flying photons connect individual modules containing stationary atomic qubits is a promising approach for scaling up neutral-atom based…

quant-ph2025★ 1 cited

A global quantum network with ground-based single-atom memories in optical cavities and satellite links

Jia-Wei Ji, Shinichi Sunami, Seigo Kikura +2

The realization of a global quantum network holds the potential to enable groundbreaking applications such as secure quantum communication and blind quantum computing. However, bui…

quant-ph2025

Passive quantum interconnects: multiplexed remote entanglement generation with cavity-assisted photon scattering

Seigo Kikura, Kazufumi Tanji, Akihisa Goban +1

We propose a time- and wavelength-multiplexed remote atom-atom entanglement generation protocol based on cavity-assisted photon scattering (CAPS). This is designed to achieve a hig…

physics.atom-ph2025★ 5 cited

Taming Recoil Effect in Cavity-Assisted Quantum Interconnects

Seigo Kikura, Ryotaro Inoue, Hayata Yamasaki +2

Photon recoil is one of the fundamental limitations for high-fidelity control of trapped-atom qubits such as neutral atoms and trapped ions. In this work, we derive an analytical m…

quant-ph2024★ 3 cited

Engineering propagating cat states with driving-assisted cavity QED

Seigo Kikura, Hayato Goto, Takao Aoki

We propose a method for generating optical cat states in propagating pulses based on cavity quantum electrodynamics (QED). This scheme uses multiple four-level systems (4LSs) insid…

quant-ph2024★ 10 cited

High-purity single-photon generation based on cavity QED

Seigo Kikura, Rui Asaoka, Masato Koashi +1

We propose a scheme for generating a high-purity single photon on the basis of cavity quantum electrodynamics (QED). This scheme employs a four-level system including two excited s…

quant-ph2023★ 10 cited

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…