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Weyl–Wigner representation of canonical equilibrium states
F NicacioThe Weyl-Wigner representations for canonical thermal equilibrium quantum states are obtained for the whole class of quadratic Hamiltonians through a Wick rotation of the Weyl-Wigner symbols of Heisenberg and metaplectic operators. The behavior of classical structures inherently associated to these unitaries is described under the Wick mapping, unveiling that a thermal equilibrium state is fully determined by a complex symplectic matrix, which sets all of its thermodynamical properties. The four categories of Hamiltonian dynamics (Parabolic, Elliptic, Hyperbolic, and Loxodromic) are analyzed. Semiclassical and high temperature approximations are derived and compared to the classical and/or quadratic behavior.
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Minkowski structure for purity and entanglement of Gaussian bipartite states
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Semiclassical Propagation of Gaussian Wave Packets
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Machine-learning recognition of light orbital-angular-momentum superpositions
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Phase conjugation of twisted Gaussian Schell model beams in stimulated down-conversion
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Maximally efficient quantum thermal machines fueled by nonequilibrium steady states
Tiago F. F. Santos, Francesco Tacchino, Dario Gerace, Michele Campisi, Marcelo F. Santos -
Inducing micromechanical motion by optical excitation of a single quantum dot
Jan Kettler, Nitika Vaish, Laure Mercier de Lépinay, Benjamin Besga, Pierre-Louis de Assis, Olivier Bourgeois, Alexia Auffèves, Maxime Richard, Julien Claudon, Jean-Michel Gérard, Benjamin Pigeau, Olivier Arcizet, Pierre Verlot, Jean-Philippe Poizat -
Quantum mechanical work
T. A. B. Pinto Silva, R. M. Angelo -
Quantum resources of the steady-state of three coupled qubits: Microscopic versus phenomenological model
E.C. Diniz, A.C.S. Costa, L.K. Castelano -
Experimental Demonstration of Robust Quantum Steering
Sabine Wollmann, Roope Uola, Ana C. S. Costa -
Quantum steering
Roope Uola, Ana C. S. Costa, H. Chau Nguyen, Otfried Gühne -
Narrow peaks of full transmission in simple quantum graphs
A. Drinko, F. M. Andrade, D. Bazeia -
Average scattering entropy of quantum graphs
Alison A. Silva, Fabiano M. Andrade, Dionisio Bazeia
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