135 citations · 605 across the 32 of their papers we have counts for
6 papers · 1 filter
One-shot quantum error correction of classical and quantum information
Yoshifumi Nakata, Eyuri Wakakuwa, Hayata Yamasaki
Quantum error correction (QEC) is one of the central concepts in quantum information science and also has wide applications in fundamental physics. The capacity theorems provide so…
Explicit construction of exact unitary designs
Eiichi Bannai, Yoshifumi Nakata, Takayuki Okuda +1
The purpose of this paper is to give explicit constructions of unitary -designs in the unitary group for all and . It seems that the explicit constructions were so…
Black holes as clouded mirrors: the Hayden-Preskill protocol with symmetry
Yoshifumi Nakata, Eyuri Wakakuwa, Masato Koashi
The Hayden-Preskill protocol is a qubit-toy model of the black hole information paradox. Based on the assumption of scrambling, it was revealed that quantum information is instantl…
One-Shot Hybrid State Redistribution
Eyuri Wakakuwa, Yoshifumi Nakata, Min-Hsiu Hsieh
We consider state redistribution of a "hybrid" information source that has both classical and quantum components. The sender transmits classical and quantum information at the same…
Holographic Pseudo Entropy
Yoshifumi Nakata, Tadashi Takayanagi, Yusuke Taki +2
We introduce a quantity, called pseudo entropy, as a generalization of entanglement entropy via post-selection. In the AdS/CFT correspondence, this quantity is dual to areas of min…
One-Shot Triple-Resource Trade-Off in Quantum Channel Coding
Eyuri Wakakuwa, Yoshifumi Nakata
We analyze a task in which classical and quantum messages are simultaneously communicated via a noisy quantum channel, assisted with a limited amount of shared entanglement. We der…