Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Wakakuwa, Eyuri"'
Observational entropy - a quantity that unifies Boltzmann's entropy, Gibbs' entropy, von Neumann's macroscopic entropy, and the diagonal entropy - has recently been argued to play a key role in a modern formulation of statistical mechanics. Here, rel
Externí odkaz:
http://arxiv.org/abs/2404.11985
Autor:
Wakakuwa, Eyuri
We study the properties of the random quantum states induced from the uniformly random pure states on a bipartite quantum system by taking the partial trace over the larger subsystem. Most of the previous studies have adopted a viewpoint of "concentr
Externí odkaz:
http://arxiv.org/abs/2311.02534
Quantum Random Access Optimizer (QRAO) is a quantum-relaxation based optimization algorithm proposed by Fuller et al. that utilizes Quantum Random Access Code (QRAC) to encode multiple variables of binary optimization in a single qubit. The approxima
Externí odkaz:
http://arxiv.org/abs/2302.09481
Autor:
Wakakuwa, Eyuri
We introduce and analyze an information theoretical task that we call the quantum multiple-access one-time pad. Here, a number of senders initially share a correlated quantum state with a receiver and an eavesdropper. Each sender performs a local ope
Externí odkaz:
http://arxiv.org/abs/2208.12016
Autor:
Wakakuwa, Eyuri
We propose the gentle measurement principle (GMP) as one of the principles at the foundation of quantum mechanics. It asserts that if a set of states can be distinguished with high probability, they can be distinguished by a measurement that leaves t
Externí odkaz:
http://arxiv.org/abs/2103.15110
Publikováno v:
Phys. Rev. A 104, 012408 (2021)
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 solid foundations of QEC. We here provide a general and highly applicabl
Externí odkaz:
http://arxiv.org/abs/2011.00668
Publikováno v:
Quantum 7, 928 (2023)
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 instantly leaked out from the quantum many-body system that models a black hol
Externí odkaz:
http://arxiv.org/abs/2007.00895
Publikováno v:
Quantum 6, 724 (2022)
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 time to the receiver, in the presence of classical and quantum side i
Externí odkaz:
http://arxiv.org/abs/2006.12059
Autor:
Wakakuwa, Eyuri, Nakata, Yoshifumi
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 derive direct and converse bounds for the one-shot capacity region, repre
Externí odkaz:
http://arxiv.org/abs/2004.12593
Autor:
Wakakuwa, Eyuri
Publikováno v:
Phys. Rev. A 104, 042413 (2021)
We consider a task in which classical information is encoded into a quantum system by an operation restricted by symmetry. The maximum amount of classical information that can be encoded under this restriction, namely the symmetry-restricted classica
Externí odkaz:
http://arxiv.org/abs/2002.01603