Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Serra, R. M."'
Publikováno v:
Phys. Rev. A 106, 022436 (2022)
Generalized measurements may allow the control of its back-action on the quantum system by interpolating from a very weak to strong projective action. Such a measurement can fuel a quantum heat engine or extract work depending on the system-meter int
Externí odkaz:
http://arxiv.org/abs/2204.01041
Autor:
Camati, P. A., Peterson, J. P. S., Batalhão, T. B., Micadei, K., Souza, A. M., Sarthour, R. S., Oliveira, I. S., Serra, R. M.
Publikováno v:
Phys. Rev. Lett. 117, 240502 (2016)
Maxwell's demon explores the role of information in physical processes. Employing information about microscopic degrees of freedom, this "intelligent observer" is capable of compensating entropy production (or extracting work), apparently challenging
Externí odkaz:
http://arxiv.org/abs/1605.08821
Autor:
Batalhao, T. B., Souza, A. M., Sarthour, R. S., Oliveira, I. S., Paternostro, M., Lutz, E., Serra, R. M.
Publikováno v:
Phys. Rev. Lett. 115, 190601 (2015)
Irreversibility is one of the most intriguing concepts in physics. While microscopic physical laws are perfectly reversible, macroscopic average behavior has a preferred direction of time. According to the second law of thermodynamics, this arrow of
Externí odkaz:
http://arxiv.org/abs/1502.06704
Autor:
Maziero, J., Auccaise, R., Celeri, L. C., Soares-Pinto, D. O., deAzevedo, E. R., Bonagamba, T. J., Sarthour, R. S., Oliveira, I. S., Serra, R. M.
Publikováno v:
Braz. J. Phys. 43, 86 (2013)
We review the theoretical and the experimental aspects regarding the quantification and identification of quantum correlations in liquid-state nuclear magnetic resonance (NMR) systems at room temperature. We start by introducing a formal method to ob
Externí odkaz:
http://arxiv.org/abs/1212.2427
Publikováno v:
New J. Phys. 17, 023057 (2015)
It is well known that a quantum correlated probe can yield better precision in estimating an unknown parameter than classically possible. However, how such a quantum probe should be measured remains somewhat elusive. We examine the role of measuremen
Externí odkaz:
http://arxiv.org/abs/1209.2731
Autor:
Filgueiras, J. G., Sarthour, R. S., Souza, A. M. S., Oliveira, I. S., Serra, R. M., Céleri, L. C.
Publikováno v:
J. Phys. A: Math. Theor. 46, 245301 (2013)
The development of quantum technologies depends on investigating of the behavior of quantum systems in noisy environments, since complete isolation from its environment is impossible to achieve. In this paper we show that a wave-particle duality expe
Externí odkaz:
http://arxiv.org/abs/1208.0802
Autor:
Soares-Pinto, D. O., Auccaise, R., Maziero, J., Gavini-Viana, A., Serra, R. M., Céleri, L. C.
Publikováno v:
Phil. Trans. R. Soc. A 370, 4821 (2012)
Nuclear Magnetic Resonance (NMR) was successfully employed to test several protocols and ideas in Quantum Information Science. In most of these implementations the existence of entanglement was ruled out. This fact introduced concerns and questions a
Externí odkaz:
http://arxiv.org/abs/1202.1795
Autor:
Auccaise, R., Serra, R. M., Filgueiras, J. G., Sarthour, R. S., Oliveira, I. S., Céleri, L. C.
Publikováno v:
Phys. Rev. A 85, 032121 (2012)
One of the milestones of quantum mechanics is Bohr's complementarity principle. It states that a single quantum can exhibit a particle-like \emph{or} a wave-like behaviour, but never both at the same time. These are mutually exclusive and complementa
Externí odkaz:
http://arxiv.org/abs/1201.5951
Autor:
Auccaise, R., Celeri, L. C., Soares-Pinto, D. O., deAzevedo, E. R., Maziero, J., Souza, A. M., Bonagamba, T. J., Sarthour, R. S., Oliveira, I. S., Serra, R. M.
Publikováno v:
Phys. Rev. Lett. 107, 140403 (2011)
Non-classical correlations play a crucial role in the development of quantum information science. The recent discovery that non-classical correlations can be present even in separable (unentangled) states has broadened this scenario. This generalized
Externí odkaz:
http://arxiv.org/abs/1104.3885
Autor:
Auccaise, R., Maziero, J., Celeri, L. C., Soares-Pinto, D. O., deAzevedo, E. R., Bonagamba, T. J., Sarthour, R. S., Oliveira, I. S., Serra, R. M.
Publikováno v:
Phys. Rev. Lett. 107, 070501 (2011)
The quantification of quantum correlations (other than entanglement) usually entails laboured numerical optimization procedures also demanding quantum state tomographic methods. Thus it is interesting to have a laboratory friendly witness for the nat
Externí odkaz:
http://arxiv.org/abs/1104.1596