INVESTIGADORES
VILLAR Paula Ines
artículos
Título:
Spin bath interaction effects on the geometric phase
Autor/es:
PAULA I. VILLAR
Revista:
PHYSICS LETTERS A
Editorial:
Elsevier Science
Referencias:
Lugar: North-Holland, Amsterdam, Holanda; Año: 2008
ISSN:
0375-9601
Resumen:
We calculate the geometric phase of a spin-1/2 particle coupled toan external environment comprising N spin-1/2 particle in the framework of open quantum systems. We analyze the decoherence factor and the deviation of the geometric phase under a nonunitary evolution from the one gained under an unitary one. We show the dependence upon the system´s and bath´s parameter and analyze the range of validity of the perturbative approximation. Finally, we discuss the implications of our results.
