296 citations · 593 across the 18 of their papers we have counts for
5 papers · 1 filter
Universality Sacrifices Reliability in Classical-Quantum Channel Coding
Kaito Watanabe, Masahito Hayashi, Takaya Matsuura +1
Universal channel coding enables communication without a complete description of the channel. For classical channels, universal codes can attain both capacity and the optimal high-…
Universal distillation of quantum entanglement
Ryuji Takagi, Kaito Watanabe, Takaya Matsuura +2
Distillable entanglement---the maximum rate of Bell states extractable from the given noisy entangled states via local operations and classical communication (LOCC)---has been a ce…
When Classical Correlations Certify Entanglement Recovery
Takeru Utsumi, Yota Tachibana, Yoshifumi Nakata +4
Entanglement and state distinguishability have long been central topics in quantum foundations. While each has developed into a rich subject in its own right, they can be connected…
Constant-rate quantum codes with low-weight stabilizers and full logical Clifford actions via transversal and fold-transversal gates
Takaya Matsuura, Yohji Chin, Shohei Kiryu +1
Low-space-overhead fault-tolerant quantum computation requires not only high-rate quantum error-correcting codes but also space-efficient implementations of logical operations. Tra…
All you need is the universal correlation detector: A unified approach to universalize communication protocols over quantum channels
Kaito Watanabe, Takaya Matsuura, Ryuji Takagi
Constructing optimal quantum information protocols without complete knowledge of the underlying states or channels is a central challenge. We address this challenge by developing u…