Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Semião, Fernando L."'
Publikováno v:
New J. Phys. 24, 023027 (2022)
Conducting an open quantum system towards a desired steady state through reservoir engineering is a remarkable task that takes dissipation and decoherence as tools rather than impediments. Here we develop a collisional model to implement reservoir en
Externí odkaz:
http://arxiv.org/abs/2111.13355
Publikováno v:
Entropy 23, 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:
http://arxiv.org/abs/2102.10466
Publikováno v:
New J. Phys. 24, 013005 (2022)
The standard weak-coupling approximations associated to open quantum systems have been extensively used in the description of a two-level quantum system, qubit, subjected to relatively weak dissipation compared with the qubit frequency. However, rece
Externí odkaz:
http://arxiv.org/abs/2011.06106
Publikováno v:
Phys. Rev. E 101, 052107 (2020)
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
Externí odkaz:
http://arxiv.org/abs/2001.03189
Autor:
Moreira, Saulo V., Marques, Breno, Paiva, Rafael R., Cruz, Luciano S., Soares-Pinto, Diogo O., Semião, Fernando L.
Publikováno v:
Phys. Rev. A 101, 012123 (2020)
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:
http://arxiv.org/abs/1905.05784
Autor:
Moreira, Saulo V., Semião, Fernando L.
Publikováno v:
Quantum Sci. Technol. 4, 03LT01 (2019)
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:
http://arxiv.org/abs/1808.04427
Publikováno v:
Phys. Rev. A 85, 022116 (2012)
Non-Markovian evolutions are responsible for a wide variety of physically interesting effects. Here, we study non-locality of the non-classical state of a system consisting of a qubit and an oscillator exposed to the effects of non-Markovian evolutio
Externí odkaz:
http://arxiv.org/abs/1109.0133
Autor:
Plenio, Martin B, Semiao, Fernando L
Publikováno v:
New J. Phys. 7, 73 (2005)
We demonstrate that a translation invariant chain of interacting quantum systems can be used for high efficiency transfer of quantum entanglement and the generation of multi-particle entanglement over large distances and between arbitrary sites witho
Externí odkaz:
http://arxiv.org/abs/quant-ph/0407034
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Akademický článek
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