4 citations · 13 across the 14 of their papers we have counts for
14 papers
Quantum Federated Learning Based on Bures--Uhlmann Geometry for Heterogeneous Noisy Clients
Haruki Emori, Masaki Uchihara, Yuuki Tokunaga
Quantum federated learning enables collaborative model training across quantum devices without sharing raw data, and it faces the data and hardware heterogeneity inherent to noisy…
Network-Based Quantum Computing: an efficient design framework for many-small-node distributed fault-tolerant quantum computing
Soshun Naito, Yasunari Suzuki, Yuuki Tokunaga
In fault-tolerant quantum computing, a large number of physical qubits are required to construct a single logical qubit, and a single quantum node may be able to hold only a small…
Trade-offs between Quantum and Classical Resources in the Linear Combination of Unitaries
Kaito Wada, Hiroyuki Harada, Yasunari Suzuki +3
The randomized linear combination of unitaries (LCU) method with many applications to early fault-tolerant quantum computing algorithms has been proposed. This quantum algorithm co…
Exploiting Translational Symmetry for Quantum Computing with Squeezed Cat Qubits
Tomohiro Shitara, Gabriel Mintzer, Yuuki Tokunaga +1
Translational symmetry plays an essential role in bosonic quantum error correction (QEC), most notably in the Gottesman-Kitaev-Preskill code. Squeezed cat (SC) codes provide a comp…
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…
Logical entanglement distribution between distant 2D array qubits
Yuya Maeda, Yasunari Suzuki, Toshiki Kobayashi +3
Sharing logical entangled pairs between distant quantum nodes is a key process to achieve fault tolerant quantum computation and communication. However, there is a gap between curr…
Data-Efficient Error Mitigation for Physical and Algorithmic Errors in a Hamiltonian Simulation
Shigeo Hakkaku, Yasunari Suzuki, Yuuki Tokunaga +1
Quantum dynamics simulation via Hamilton simulation algorithms is one of the most crucial applications in the quantum computing field. While this task has been relatively considere…
LSQCA: Resource-Efficient Load/Store Architecture for Limited-Scale Fault-Tolerant Quantum Computing
Takumi Kobori, Yasunari Suzuki, Yosuke Ueno +3
Current fault-tolerant quantum computer (FTQC) architectures utilize several encoding techniques to enable reliable logical operations with restricted qubit connectivity. However,…
Unitary-transformed projective squeezing: applications for circuit-knitting and state-preparation of non-Gaussian states
Keitaro Anai, Yasunari Suzuki, Yuuki Tokunaga +3
Continuous-variable (CV) quantum computing is a promising candidate for quantum computation because it can, even with one mode, utilize infinite-dimensional Hilbert spaces and can…
-Party Hadamard Test for Distributed Quantum Computation
Kaoru Yamamoto, Yuichiro Matsuzaki, Yasunari Suzuki +2
Quantum computers promise computational advantages over classical computers, but hardware-imposed limitations remain a major obstacle. The Hadamard test mitigates these limitations…
Projective squeezing for translation symmetric bosonic codes
Suguru Endo, Keitaro Anai, Yuichiro Matsuzaki +2
The design of translation symmetric bosonic codes, e.g., Gottesmann-Kitaev-Preskill and squeezed cat codes, is robust against photon loss, but the computation accuracy is limited b…
Efficient and high-performance routing of lattice-surgery paths on three-dimensional lattice
Kou Hamada, Yasunari Suzuki, Yuuki Tokunaga
Encoding logical qubits with surface codes and performing multi-qubit logical operations with lattice surgery is one of the most promising approaches to demonstrate fault-tolerant…
Density matrix representation of hybrid tensor networks for noisy quantum devices
Hiroyuki Harada, Yasunari Suzuki, Bo Yang +2
The hybrid tensor network (HTN) method is a general framework allowing for the construction of an effective wavefunction with the combination of classical tensors and quantum tenso…