20 citations · 34 across the 9 of their papers we have counts for
10 papers
NAQsim: Full-Stack Architecture Simulation Framework for Fast and Space-Efficient Neutral Atom Quantum Computing
Yosuke Ueno, Shinichi Sunami, Toshihide Hinokuma +5
Technological advances in neutral-atom platforms have opened a new path toward designing efficient protocols for fault-tolerant quantum computing (FTQC). However, each physical ope…
Revisiting Thermal Scalability for Large-Scale Superconducting Quantum Systems
Shaswot Shresthamali, Ilkwon Byun, Teruo Tanimoto +4
The readout amplification chain imposes a critical thermal scalability bottleneck in large-scale superconducting quantum systems. This happens through three mechanisms: amplifier d…
Bounded-depth spacetime lattice surgery for resource-efficient fault-tolerant quantum computation
Kou Hamada, Hiroki Hamaguchi, Yosuke Ueno +3
Fault-tolerant quantum computing based on lattice surgery requires place-and-route compilation with low spacetime overhead. Routing, in particular, faces a basic tension between su…
Accelerating BP-based decoders for QLDPC Codes with Local Syndrome-Based Preprocessing
Wenxuan Fan, Yasunari Suzuki, Gokul Subramanian Ravi +4
Due to the high error rate of qubits, detecting and correcting errors is essential for achieving fault-tolerant quantum computing (FTQC). Quantum low-density parity-check (QLDPC) c…
Q3DE: A fault-tolerant quantum computer architecture for multi-bit burst errors by cosmic rays
Yasunari Suzuki, Takanori Sugiyama, Tomochika Arai +3
Demonstrating small error rates by integrating quantum error correction (QEC) into an architecture of quantum computing is the next milestone towards scalable fault-tolerant quantu…
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,…
High-Performance and Scalable Fault-Tolerant Quantum Computation with Lattice Surgery on a 2.5D Architecture
Yosuke Ueno, Taku Saito, Teruo Tanimoto +4
Due to the high error rate of a qubit, detecting and correcting errors on it is essential for fault-tolerant quantum computing (FTQC). Among several FTQC techniques, lattice surger…
C3-VQA: Cryogenic Counter-based Co-processor for Variational Quantum Algorithms
Yosuke Ueno, Satoshi Imamura, Yuna Tomida +5
Cryogenic quantum computers play a leading role in demonstrating quantum advantage. Given the severe constraints on the cooling capacity in cryogenic environments, thermal design i…
SFQ counter-based precomputation for large-scale cryogenic VQE machines
Yosuke Ueno, Satoshi Imamura, Yuna Tomida +5
The variational quantum eigensolver (VQE) is a promising candidate that brings practical benefits from quantum computing. However, the required bandwidth in/out of a cryostat is a…
Inter-temperature Bandwidth Reduction in Cryogenic QAOA Machines
Yosuke Ueno, Yuna Tomida, Teruo Tanimoto +4
The bandwidth limit between cryogenic and room-temperature environments is a critical bottleneck in superconducting noisy intermediate-scale quantum computers. This paper presents…