0000000001280458
AUTHOR
Artur Lozinski
showing 1 related works from this author
Berry phase in open quantum systems: a quantum Langevin equation approach
2007
The evolution of a two level system with a slowly varying Hamiltonian, modeled as s spin 1/2 in a slowly varying magnetic field, and interacting with a quantum environment, modeled as a bath of harmonic oscillators is analyzed using a quantum Langevin approach. This allows to easily obtain the dissipation time and the correction to the Berry phase in the case of an adiabatic cyclic evolution.