Zobrazeno 1 - 10
of 531
pro vyhledávání: '"Passos M"'
Autor:
Passos, M. R., de Oliveira, Thiago R.
Understanding how macroscopic systems exhibit irreversible thermal behavior has been a long-standing challenge, first brought to prominence by Boltzmann. Recent advances have established rigorous conditions for isolated quantum systems to equilibrate
Externí odkaz:
http://arxiv.org/abs/2410.07429
Autor:
Arruda, L. G. E., Balthazar, W. F., Moreira, M. V., Passos, M. H. M., Huguenin, J. A. O., de Oliveira, M. C.
We propose a procedure to identify and classify genuine tripartite entanglement in pure 3-qubit states via the Activated Bipartite Entanglement (ABE), which is defined here as the difference between the Entanglement of Assistance and the Entanglement
Externí odkaz:
http://arxiv.org/abs/2112.15500
Autor:
Cordero, Oscar, Villegas, Arturo, Alvarez, Juan-Rafael, León-Montiel, Roberto de J., Passos, M. H. M., Torres, Juan P.
Publikováno v:
Phys. Rev. A 104, 042401 (2021)
The concept of quantum discord aims at unveiling quantum correlations that go beyond those described by entanglement. Its original formulation [J. Phys. A 34, 6899 (2001); Phys. Rev. Lett 88, 017901 (2002)] is difficult to compute even for the simple
Externí odkaz:
http://arxiv.org/abs/2107.14265
Autor:
Passos, M. H. M., Junior, A. de Oliveira, de Oliveira, M. C., Khoury, A. Z., Huguenin, J. A. O
Publikováno v:
Phys. Rev. A 102, 062601 (2020)
The Solovay-Kitaev theorem allows us to approximate any single-qubit gate to arbitrary accuracy with a finite sequence of fundamental operations from a universal set of gates. Inspired by this decomposition, we present a quantum channel simulator cap
Externí odkaz:
http://arxiv.org/abs/2008.02631
Publikováno v:
Annals of Physics 418, 168172 (2020)
The use of the adiabatic approximation in practical applications, as in adiabatic quantum computation, demands an assessment of the errors made in finite-time evolutions. Aiming at such scenarios, we derive bounds relating error and evolution time in
Externí odkaz:
http://arxiv.org/abs/1907.03769
Publikováno v:
Phys. Rev. A 100, 022113 (2019)
We introduce both a theoretical and an experimental scheme for simulating a quantum thermal engine through an all-optical approach, with the behavior of the working substance and the thermal reservoirs implemented via internal degrees of freedom of a
Externí odkaz:
http://arxiv.org/abs/1812.10102
Autor:
Passos, M. H. M., Balthazar, W. F., de Barros, J. Acacio, Souza, C. E. R., Khoury, A. Z., Huguenin, J. A. O.
Publikováno v:
Phys. Rev. A 98, 062116 (2018)
We experimentally observed the violation of Kujula-Dzhafarov noncontextuality inequalities by non-separable spin-orbit laser modes. Qubits are encoded on polarization and transverse modes of an intense laser beam. A spin-orbit non-separable mode was
Externí odkaz:
http://arxiv.org/abs/1807.05567
Autor:
Passos, M. H. M., Obando, P. C., Balthazar, W. F., Paula, F. M., Huguenin, J. A. O., Sarandy, M. S.
Publikováno v:
Opt. Lett. 44(10) 2478-2481 (2019)
We propose an all-optical experiment to quantify non-Markovianity in an open quantum system through quantum coherence of a single quantum bit. We use an amplitude damping channel implemented by an optical setup with an intense laser beam simulating a
Externí odkaz:
http://arxiv.org/abs/1807.05378
Autor:
Passos, M. H. M., Balthazar, W. F., Khoury, A. Z., Hor-Meyll, M., Davidovich, L., Huguenin, J. A. O.
Publikováno v:
Phys. Rev. A 97, 022321 (2018)
We investigate the generation of entanglement between two non interacting qubits coupled to a common reservoir. An experimental setup was conceived to encode one qubit on the polarization of an optical beam and another qubit on its transverse mode. T
Externí odkaz:
http://arxiv.org/abs/1712.01218
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