Critical Property of Geometric Phase in the Dicke Model

Details Critical Property of Geometric Phase in the Dicke Model Critical Property of Geometric Phase in the Dicke Model

2006-08-28

arxiv.org/abs/quant-ph/0608207v1

Physics

Quantum Physics

1 figure

Scientific paper

10.1103/PhysRevA.74.054101

We obtain the ground-state energy level and associated geometric phase in the Dicke model analytically by means of the Holstein-Primakoff transformation and the boson expansion approach in the thermodynamic limit. The non-adiabatic geometric phase induced by the photon field is derived with the time-dependent unitary transformation. It is shown that the quantum phase transition characterized by the non-analyticity of the geometric phase is remarkably of the first-order. We also investigate the scaling behavior of the geometric phase at the critical point, which can be measured in a practical experiment to detect the quantum phase transition.

Affiliated with

Also associated with

No associations

Rating

Critical Property of Geometric Phase in the Dicke Model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Critical Property of Geometric Phase in the Dicke Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Critical Property of Geometric Phase in the Dicke Model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-106314