Singularities of the mixed state phase (multiple letters)
Physical Review Letters 89:26 (2002)
Singularities of the mixed state phase (multiple letters)
Physical Review Letters 89:26 (2002)
Vacuum induced spin-1/2 Berry's phase.
Phys Rev Lett 89:22 (2002) 220404
Abstract:
We calculate the Berry phase of a spin-1/2 particle in a magnetic field considering the quantum nature of the field. The phase reduces to the standard Berry phase in the semiclassical limit and the eigenstate of the particle acquires a phase in the vacuum. We also show how to generate a vacuum induced Berry phase considering two quantized modes of the field which has an interesting physical interpretation.Classicality of spin-coherent states via entanglement and distinguishability
(2002)