IPM
30
YEARS OLD

## “School of Physic”

Back to Papers Home
Back to Papers of School of Physic

Paper   IPM / Physic / 15973
School of Physics
Title:   Impact of nonideal cycles on the efficiency of quantum heat engines
Author(s):
 1 . M. Ramezani 2 . S. Marcantoni 3 . F. Benatti 4 . R. Floreanini 5 . F. Petiziol 6 . A.T. Rezakhani 7 . M. Golshani
Status:   Published
Journal: Eur. Phys. J. D
Vol.:  73
Year:  2019
Pages:   144
Supported by:  IPM
Abstract:
Given a quantum heat engine that operates in a cycle that reaches maximal efficiency for a time-dependent Hamiltonian H(t) of the working substance, with overall controllable driving H(t) = g(t) H, we study the deviation of the efficiency from the optimal value due to a generic time-independent perturbation in the Hamiltonian. We show that for a working substance consisting of two two-level systems, by suitably tuning the interaction, the deviation can be suppressed up to the third order in the perturbation parameter-and thus almost retaining the optimality of the engine.

Download TeX format
back to top
scroll left or right