Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Mamiko Tatsuta"'
Publikováno v:
npj Quantum Information, Vol 9, Iss 1, Pp 1-9 (2023)
Abstract Strong interactions between defect spins in many-body solid-state quantum systems are a crucial resource for exploring non-classical states. However, they face the key challenge of controlling interactions between the defect spins, since the
Externí odkaz:
https://doaj.org/article/faa1780cb08c462f852cc7a9828604f6
Publikováno v:
New Journal of Physics, Vol 24, Iss 3, p 033005 (2022)
The aim of quantum metrology is to estimate target parameters as precisely as possible. In this paper, we consider quantum metrology based on symmetry-protected adiabatic transformation. We introduce a ferromagnetic Ising model with a transverse fiel
Externí odkaz:
https://doaj.org/article/0784400f4d5f49b8bdf44eff4ecb6353
Quantum metrology is the use of genuinely quantum properties such as entanglement as a resource to outperform classical sensing strategies. Typically, entanglement is created by implementing gate operations or inducing many-body interactions. However
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cfd3391b2c6e3c90d99880f26b7f586
We show a general relationship between a superposition of macroscopically distinct states and sensitivity in quantum metrology. Generalized cat states are defined by using an index which extracts the coherence between macroscopically distinct states,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::767b717f08cbc75deb1d76f4cce903f6
Autor:
Mamiko Tatsuta, Akira Shimizu
A simple procedure for obtaining superpositions of macroscopically distinct states is proposed and analyzed. We find that a thermal equilibrium state can be converted into such a state when a single global measurement of a macroscopic observable, suc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::448e63ea915997e99cc143194fac8797
http://arxiv.org/abs/1703.05034
http://arxiv.org/abs/1703.05034