IFIMAR 20926
INSTITUTO DE INVESTIGACIONES FISICAS DE MAR DEL PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Transición cuántico-clásica para la distribución de la probabilidad de trabajo cuántico en sistemas caóticos
Autor/es:
I. GARCIA MATA
Lugar:
La Plata
Reunión:
Conferencia; Reunión anual de la Asociación de Física Argentina; 2017
Institución organizadora:
Asociación de Fisica Argentina
Resumen:
The work distribution is a fundamental quantity in nonequilibrium thermodynamics mainly due to its connection with fluctuation theorems. Here, we develop a semiclassical approximation to the work distribution for a quench process in chaotic systems that provides a link between the quantum and classical work distributions. The approach is based on the dephasing representation of the quantum Loschmidt echo and on the quantum ergodic conjecture, which states that the Wigner function of a typical eigenstate of a classically chaotic Hamiltonian is equidistributed on the energy shell. Using numerical simulations, we show that our semiclassical approximation accurately describes the quantum distribution as the temperature is increased.
