Zobrazeno 1 - 10
of 458
pro vyhledávání: '"Masahito, Hayashi"'
Autor:
Masahito Hayashi, Yingkai Ouyang
Publikováno v:
npj Quantum Information, Vol 10, Iss 1, Pp 1-12 (2024)
Abstract The ultimate precision in quantum sensing could be achieved using optimal quantum probe states. However, current quantum sensing protocols do not use probe states optimally. Indeed, the calculation of optimal probe states remains an outstand
Externí odkaz:
https://doaj.org/article/763accf77dd94d8989a7b9170e916928
Autor:
Masahito Hayashi
Publikováno v:
Quantum, Vol 8, p 1517 (2024)
A Dicke state and its decohered state are invariant for permutation. However, when another qubits state to each of them is attached, the whole state is not invariant for permutation, and has a certain asymmetry for permutation. The amount of asymmetr
Externí odkaz:
https://doaj.org/article/1966723306484797b62088f5fb679bf6
Publikováno v:
npj Quantum Information, Vol 9, Iss 1, Pp 1-12 (2023)
Abstract Blind quantum computation (BQC) is a secure quantum computation method that protects the privacy of clients. Measurement-based quantum computation (MBQC) is a promising approach for realizing BQC. To obtain reliable results in blind MBQC, it
Externí odkaz:
https://doaj.org/article/690997e840f248a0a3d5ce9eeb9175f9
Autor:
Baichu Yu, Masahito Hayashi
Publikováno v:
New Journal of Physics, Vol 26, Iss 10, p 103003 (2024)
In quantum theory, a quantum state on a composite system of two parties realizes a non-negative probability with any measurement element with a tensor product form. However, there also exist non-quantum states which satisfy the above condition. Such
Externí odkaz:
https://doaj.org/article/bf44f6683453496b9f23ed7d38485dbd
Autor:
Hayato Arai, Masahito Hayashi
Publikováno v:
New Journal of Physics, Vol 26, Iss 5, p 053046 (2024)
It is a key issue to characterize the model of standard quantum theory out of general models by an operational condition. The framework of general probabilistic theories (GPTs) is a new information theoretical approach to single out standard quantum
Externí odkaz:
https://doaj.org/article/abaf6534efd34193b70402b0d69b1b3b
Publikováno v:
npj Quantum Information, Vol 8, Iss 1, Pp 1-9 (2022)
Abstract Complex processes often arise from sequences of simpler interactions involving a few particles at a time. These interactions, however, may not be directly accessible to experiments. Here we develop the first efficient method for unravelling
Externí odkaz:
https://doaj.org/article/780500d620cb4bf2a1965e3df9216afd
Autor:
Masahito Hayashi
Publikováno v:
IEEE Access, Vol 10, Pp 29040-29068 (2022)
Inspired by quantum key distribution, we consider wireless communication between Alice and Bob when the noise generated in the intermediate space between Alice and Bob is controlled by Eve. Our model divides the channel noise into two parts, the nois
Externí odkaz:
https://doaj.org/article/f613dacff11c4be2be36b8c10bcbba99
Autor:
Kanako Nozawa-Kumada, Masahito Hayashi, Eunsang Kwon, Masanori Shigeno, Akira Yada, Yoshinori Kondo
Publikováno v:
Molecules, Vol 28, Iss 18, p 6682 (2023)
Herein, we report the copper-catalyzed dehydrogenative C(sp2)–N bond formation of 4-pentenamides via nitrogen-centered radicals. This reaction provides a straightforward and efficient preparation method for γ-alkylidene-γ-lactams. Notably, we cou
Externí odkaz:
https://doaj.org/article/6c6a463d870946b3aa7688862aef4ba2
Autor:
Masahito Hayashi, Yingkai Ouyang
Publikováno v:
Quantum, Vol 7, p 1094 (2023)
In the quest to unlock the maximum potential of quantum sensors, it is of paramount importance to have practical measurement strategies that can estimate incompatible parameters with best precisions possible. However, it is still not known how to fin
Externí odkaz:
https://doaj.org/article/b759917cf4144a18885de7ed8e8165ef
Autor:
Masahito Hayashi, Yuxiang Yang
Publikováno v:
Quantum, Vol 7, p 936 (2023)
The ability to extract relevant information is critical to learning. An ingenious approach as such is the information bottleneck, an optimisation problem whose solution corresponds to a faithful and memory-efficient representation of relevant informa
Externí odkaz:
https://doaj.org/article/6ae0808436a040c8b9c54c67d6e57bdc