Zobrazeno 1 - 10
of 221
pro vyhledávání: '"de Ponte, M. A."'
In this work we address systems described by time-dependent non-Hermitian Hamiltonians under time-dependent Dyson maps. We shown that when starting from a given time-dependent non-Hermitian Hamiltonian which is not itself an observable, an infinite c
Externí odkaz:
http://arxiv.org/abs/1703.01451
In this paper we present a method to derive an exact master equation for a bosonic system coupled to a set of other bosonic systems, which plays the role of the reservoir, under the strong coupling regime, i.e., without resorting to either the rotati
Externí odkaz:
http://arxiv.org/abs/1403.7477
Autor:
Máximo, C. E., Batalhão, T. B., Bachelard, R., Neto, G. D. de Moraes, de Ponte, M. A., Moussa, M. H. Y.
Publikováno v:
J. Opt. Soc. Am. B 31, 2480 (2014)
We present a fully quantum scheme to perform 2D atomic lithography based on a cross-cavity optical Stern-Gerlach setup: an array of two mutually orthogonal cavities crossed by an atomic beam perpendicular to their optical axes, which is made to inter
Externí odkaz:
http://arxiv.org/abs/1402.6179
Autor:
de Almeida, A. R, de Ponte, M. A., Cardoso, W. B., Avelar, A. T., Moussa, M. H. Y., de Almeida, N. G.
We derive Bohm's trajectories from Bell's beables for arbitrary bipartite systems composed by dissipative noninteracting harmonic oscillators at finite temperature. As an application of our result, we calculate the Bohmian trajectories of particles d
Externí odkaz:
http://arxiv.org/abs/1204.6314
In this paper we propose a scheme for quasi-perfect state transfer in a network of dissipative harmonic oscillators. We consider ideal sender and receiver oscillators connected by a chain of nonideal transmitter oscillators coupled by nearest-neighbo
Externí odkaz:
http://arxiv.org/abs/0905.1267
In this article we extend the results presented in Ref. [Phys. Rev. A 76, 032101 (2007)] to treat quantitatively the effects of reservoirs at finite temperature in a bosonic dissipative network: a chain of coupled harmonic oscillators whichever its t
Externí odkaz:
http://arxiv.org/abs/0905.1107
In this paper we analyze the double Caldeira-Leggett model: the path integral approach to two interacting dissipative harmonic oscillators. Assuming a general form of the interaction between the oscillators, we consider two different situations: i) w
Externí odkaz:
http://arxiv.org/abs/0903.2176
In this work we investigate the dynamical Casimir effect in a nonideal cavity by deriving an effective Hamiltonian. We first compute a general expression for the average number of particle creation, applicable for any law of motion of the cavity boun
Externí odkaz:
http://arxiv.org/abs/0805.0786
Considering a network of dissipative quantum harmonic oscillators we deduce and analyze the optimum topologies which are able to store, for the largest period of time, a quantum superposition previously prepared in one of the network oscillators. The
Externí odkaz:
http://arxiv.org/abs/0707.1629
In this paper we demonstrate that the inevitable action of the environment can be substantially weakened when considering appropriate nonstationary quantum systems. Beyond protecting quantum states against decoherence, an oscillating frequency can be
Externí odkaz:
http://arxiv.org/abs/quant-ph/0609199