Zobrazeno 1 - 10
of 20
pro vyhledávání: '"J. G. G. de Oliveira"'
We report on the geometric character of the entanglement dynamics of to pairs of qubits evolving according to the double Jaynes-Cummings model. We show that the entanglement dynamics for the initial states |{\psi}_0> = Cos{\alpha} |1 0> + Sin{\alpha}
Externí odkaz:
http://arxiv.org/abs/1107.5839
Autor:
Adélcio C. Oliveira, Josiane Oliveira Rezende de Paula, Ricardo Falcao, J. G. Peixoto de Faria, J. G. G. de Oliveira
Publikováno v:
The European Physical Journal D. 75
The quantum version of Jarzynski equality was theoretically investigated for the work operator in the interaction picture. Since the Hamiltonian is time-dependent, it does not commute with itself at different times, then we have solved analytically i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::150b5fd8a3905415ea31a2b778a8810a
https://doi.org/10.1140/epjd/s10053-020-00028-w
https://doi.org/10.1140/epjd/s10053-020-00028-w
Publikováno v:
Annals of Physics. 387:222-238
We provide an analytical and theoretical study of exotic looped trajectories (ELTs) in a double-slit interferometer with quantum marking. We use an excited Rydberg-like atom and which-way detectors such as superconducting cavities, just as in the Scu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5aa27ce0c7da4ac7d09543daf22cc8e
https://doi.org/10.1016/j.aop.2017.10.006
https://doi.org/10.1016/j.aop.2017.10.006
Autor:
Ricardo Falcao, J. G. Peixoto de Faria, Adélcio C. Oliveira, J. G. G. de Oliveira, Josiane Oliveira Rezende de Paula
A superconducting cavity model was proposed as a way to experimentally investigate the work performed in a quantum system. We found a simple mathematical relationship between the free energy variation and visibility measurement in quantum cavity cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34ca92c7b009fe11ac707d1aaae358f9
http://arxiv.org/abs/1901.01133
http://arxiv.org/abs/1901.01133
Autor:
L. A. Cabral, M.D.R. Sampaio, C.J.S. Ferreira, J. G. G. de Oliveira, L. S. Marinho, I. G. da Paz, T.B. Brazil
Publikováno v:
Annals of Physics. 362:473-481
We study a matter wave double-slit experiment with unequal aperture widths in order to evaluate the effect of the Gouy phase on the visibility/predictability. While the predictability changes as one increases the width of one of the slits, the visibi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4798d2664388c67e106da7e2dce04f7a
https://doi.org/10.1016/j.aop.2015.08.012
https://doi.org/10.1016/j.aop.2015.08.012
Recently there have been experimental results on Poisson spot matter wave interferometry followed by theoretical models describing the relative importance of the wave and particle behaviors for the phenomenon. We propose an analytical theoretical mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d310ece19861451423555be24c58f3f2
http://arxiv.org/abs/1609.09023
http://arxiv.org/abs/1609.09023
Autor:
Gustavo de Souza, Adalberto D. Varizi, Edson C. M. Nogueira, J. G. G. de Oliveira, Marcos Sampaio
In bipartite quantum systems, entanglement correlations between the parties exerts direct influence in the phenomenon of wave-particle duality. This effect has been quantitatively analyzed in the context of two qubits by M. Jakob and J. Bergou [Optic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51d92cc5a2c5732b4f381934d5078bb1
Autor:
José Albertino Bendassolli, E. Almeida, Glauco Arnold Tavares, J. G. G. de Oliveira, V. F. Nascimento Filho
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 287:377-381
This study aimed to evaluate minor and trace elements in the water during different water purification steps of a deionized water production plant, located at CENA, by total-reflection X-ray fluorescence (TXRF) technique, using Ga as internal standar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88bd6ba2035d01fa9b0e733712b0c08e
https://doi.org/10.1007/s10967-010-0885-x
https://doi.org/10.1007/s10967-010-0885-x
Publikováno v:
Physical Review A. 90
In two-dimensional systems, predictability and visibility satisfy a complementarity relation, which has been generalized to bipartite systems by including the concurrence. We consider systems in which the two alternatives of a which-state experiment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95195dc219a3523216745efcd4996da2
https://doi.org/10.1103/physreva.90.062102
https://doi.org/10.1103/physreva.90.062102
Autor:
M. C. Nemes, A. L. de Paula, J. G. G. de Oliveira, Dagoberto S. Freitas, J. G. Peixoto de Faria
Publikováno v:
Physical Review A. 89
We consider a many-body system consisting of a harmonic oscillator linearly coupled to $N$ others and solve the corresponding dynamical problem analytically. Initially, the main oscillator is prepared in a superposition of two coherent states and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5221bc00d82ea60993ddcfd989d9c952
https://doi.org/10.1103/physreva.89.022303
https://doi.org/10.1103/physreva.89.022303