Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Fernando L. Semião"'
Publikováno v:
Entropy, Vol 23, Iss 9, p 1179 (2021)
The investigation of the phenomenon of dephasing assisted quantum transport, which happens when the presence of dephasing benefits the efficiency of this process, has been mainly focused on Markovian scenarios associated with constant and positive de
Externí odkaz:
https://doaj.org/article/efa09c52122042e9bc3b91ee1830cda7
We consider the problem of energy transport in a chain of coupled quantum systems with the goal of shedding light on how nonclassical resources can affect transport. We study the cases for which either coherent or incoherent energy hopping takes plac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::823396614968485293e1790a59726a33
http://arxiv.org/abs/2007.15669
http://arxiv.org/abs/2007.15669
Publikováno v:
Physical review. E. 101(5-1)
We study the influence that collective transition phenomena have on quantum metrological protocols. The single spherical quantum spin (SQS) serves as stereotypical toy model that allows analytical insights on a mean-field level. First, we focus on eq
Autor:
Fernando L. Semião, R. R. Paiva, L. S. Cruz, B. Marques, Diogo O. Soares-Pinto, Saulo V. Moreira
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
We consider the problem of energy transport in a chain of coupled dissipative quantum systems in the presence of non-Markovian dephasing. We use a model of non-Markovianity which is experimentally realizable in the context of controlled quantum syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08db23b6bb195132dc67e25a54b9da8b
Autor:
Fernando L. Semião, I. Medina
Publikováno v:
Physical Review A. 100
We apply reverse-engineering to find electromagnetic pulses that allow for the control of populations in quantum systems under dephasing and thermal noises. In particular, we discuss two-level systems given their importance in the description of seve
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
In classical mechanics, external constraints on the dynamical variables can be easily implemented within the Lagrangian formulation. Conversely, the extension of this idea to the quantum realm, which dates back to Dirac, has proven notoriously diffic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64d8e1cf0c8a82ed2f19b790e3c762ea
Autor:
Renate Landig, Lorenzo Fusco, Gabriel T. Landi, Nikolai Kiesel, Alessandro Ferraro, J. Hoelscher-Obermaier, G. De Chiara, Fernando L. Semião, Witlef Wieczorek, Matteo Brunelli, Mauro Paternostro, Tobias Donner
Publikováno v:
Brunelli, M, Fusco, L, Landig, R, Wieczorek, W, Hoelscher-Obermaier, J, Landi, G, Semiao, F L, Ferraro, A, Donner, T, Kiesel, N, De Chiara, G & Paternostro, M 2018, ' Experimental Determination of Irreversible Entropy Production in out-of-Equilibrium Mesoscopic Quantum Systems ', Physical Review Letters, vol. 121, 160604 . https://doi.org/10.1103/PhysRevLett.121.160604
Physical Review Letters
Physical Review Letters
By making use of a recently proposed framework for the inference of thermodynamic irreversibility in bosonic quantum systems, we experimentally measure and characterize the entropy production rates in the non-equilibrium steady state of two different
Autor:
Fernando L. Semião, Saulo V. Moreira
In this work, we establish a connection between nonlinear electronic spectroscopy and the protocol for the non-disturbance condition, the non-fullfilment of which is a witness of nonclassicality and can be related to the presence of coherence. Our ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66f26c602c31458e9f3c0b87e82fb50a
http://arxiv.org/abs/1808.04427
http://arxiv.org/abs/1808.04427
We show how the dispersive regime of the Jaynes-Cummings model may serve as a valuable tool to the study of open quantum systems. We employ it in a bottom-up approach to build an environment that preserves qubit energy and induces varied coherence dy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c66f6fc3ec6141f0d81b95697927e22b
Autor:
I. Medina, Fernando L. Semião
Publikováno v:
Quantum Information Processing. 16
In this work, we investigate the controlled teleportation protocol using optical qubits within the single-rail logic. The protocol makes use of an entangled tripartite state shared by the controller and two further parties (users) who will perform st