10 citations · 37 across the 12 of their papers we have counts for
12 papers
Linear optical Bell state measurement for rotation-symmetric cat codes
Issa Oe, Suguru Endo, Rui Asaoka
Rotation-symmetric cat (RS-cat) codes are a bosonic-code platform for quantum information processing, combining finite-energy realizability with robustness against photon loss thro…
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…
Fault-tolerant logical state construction based on cavity-QED network
Rui Asaoka, Yasunari Suzuki, Yuuki Tokunaga
Exploring an efficient and scalable architecture of fault-tolerant quantum computing (FTQC) is vital for demonstrating useful quantum computing. Here, we propose and evaluate a sca…
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…
Speed Limit of Efficient Cavity-Mediated Adiabatic Transfer
Akinori Suenaga, Takeru Utsugi, Rui Asaoka +3
Cavity-mediated adiabatic transfer (CMAT) is a robust way to perform a two-qubit gate between trapped atoms inside an optical cavity. In the previous study by Goto and Ichimura [H.…
Quantum error mitigation for rotation symmetric bosonic codes with symmetry expansion
Suguru Endo, Yasunari Suzuki, Kento Tsubouchi +4
The rotation symmetric bosonic code (RSBC) is a unified framework of practical bosonic codes that have rotation symmetries, such as cat codes and binomial codes. While cat codes ac…
Optimal cavity design for minimizing errors in cavity-QED-based atom-photon entangling gates with finite temporal duration
Takeru Utsugi, Rui Asaoka, Yuuki Tokunaga +1
We investigate atom-photon entangling gates based on cavity quantum electrodynamics (QED) for a finite photon-pulse duration, where not only the photon loss but also the temporal m…
Stimulated emission of superradiant atoms in waveguide QED
Rui Asaoka, Julio Gea-Banacloche, Yuuki Tokunaga +1
We investigate the stimulated emission of superradiant atoms coupled to a waveguide induced by a coherent-state photon pulse. We provide an analytical result when a short pulse…
Requirements for fault-tolerant quantum computation with cavity-QED-based atom-atom gates mediated by a photon with a finite pulse length
Rui Asaoka, Yuuki Tokunaga, Rina Kanamoto +2
We analyze the requirements for fault-tolerant quantum computation with atom-atom gates based on cavity quantum electrodynamics (cQED) mediated by a photon with a finite pulse leng…
Anomalous dispersion relations in the staggered flux state
Hiroki Tsuchiura, Masao Ogata, Kunito Yamazaki +1
We study the quasiparticle properties in the d-wave superconductivity, antiferromagnetism, and the staggered flux state within a renormalized mean-field theory based on the two-dim…
Dynamical instability in the S=1 Bose-Hubbard model
Rui Asaoka, Hiroki Tsuchiura, Makoto Yamashita +1
We study the dynamical instabilities of superfluid flows in the S=1 Bose-Hubbard model. The time evolution of each spin component in a condensate is calculated based on the dynamic…
Density Modulations Associated with the Dynamical Instability in the Bose-Hubbard Model
Rui Asaoka, Hiroki Tsuchiura, Makoto Yamashita +1
A superfluid flow beyond a critical momentum in an optical lattice decays drastically by the interplay between nonlinearity due to the interparticle interactions in Bose-Einstein c…