Zobrazeno 1 - 10
of 158
pro vyhledávání: '"Quantum critical phenomena"'
Publikováno v:
Entropy, Vol 24, Iss 9, p 1306 (2022)
Fidelity mechanics is formalized as a framework for investigating critical phenomena in quantum many-body systems. Fidelity temperature is introduced for quantifying quantum fluctuations, which, together with fidelity entropy and fidelity internal en
Externí odkaz:
https://doaj.org/article/c8edb240e5a245a8bc7b7371898fc600
Akademický článek
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Autor:
Yong Tao
Publikováno v:
Reports in Advances of Physical Sciences, Vol 2, Iss 3, Pp 1850009-1-1850009-10 (2018)
When the superconducting transition temperature Tc sufficiently approaches zero, quantum fluctuations are expected to be overwhelmingly amplified around zero temperature so that the mean-field approximation may break down. This implies that quantum c
Externí odkaz:
https://doaj.org/article/a84767afdaf64ca39dfa66c7375deabb
Autor:
Håvard H. Haugen, Asle Sudbø
Publikováno v:
Physical review B (PRB)
Motivated by the recent experimental observation of an intermediate bosonic metallic state in the two-dimensional superconductor-insulator transition at T = 0 , we study an extended Bose-Hubbard model in the limit of a large number of particles per s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::680d72c62c95c4ccf7142e187d1506d7
https://doi.org/10.1103/physrevb.106.064504
https://doi.org/10.1103/physrevb.106.064504
Publikováno v:
Garbe, L, Abah, O, Felicetti, S & Puebla, R 2022, ' Critical quantum metrology with fully-connected models: from Heisenberg to Kibble–Zurek scaling ', Quantum Science and Technology, vol. 7, no. 3, 035010 . https://doi.org/10.1088/2058-9565/ac6ca5
41 pags., 10 figs., 7 apps.
Phase transitions represent a compelling tool for classical and quantum sensing applications. It has been demonstrated that quantum sensors can in principle saturate the Heisenberg scaling, the ultimate precision boun
Phase transitions represent a compelling tool for classical and quantum sensing applications. It has been demonstrated that quantum sensors can in principle saturate the Heisenberg scaling, the ultimate precision boun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5999037e6c1d5da57defe18957c4ab47
http://arxiv.org/abs/2110.04144
http://arxiv.org/abs/2110.04144
Autor:
Niels Henrik Aase, Asle Sudbø
Publikováno v:
Physical review B (PRB)
We study spin-fluctuation mediated divergent superconducting fluctuations in a Luttinger liquid proximity-coupled to a spin chain. Our study provides insight into how spin fluctuations can induce superconductivity in a strongly correlated non-Fermi l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c845ff4b51cf40aa854f55932032f7ee
Akademický článek
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