Geometric Phase and Quantum Phase Transition : Two-Band Model

Details Geometric Phase and Quantum Phase Transition : Two-Band Model Geometric Phase and Quantum Phase Transition : Two-Band Model

2008-08-02

arxiv.org/abs/0808.0242v1

PhysRevA,78, 022101 (2008)

Physics

Quantum Physics

7.5 pages and comments are welcome

Scientific paper

10.1103/PhysRevA.78.022101

The connection between the geometric phase and quantum phase transition has been discussed extensively in the two-band model. By introducing the twist operator, the geometric phase can be defined by calculating its ground-state expectation value. In contrast to the previous numerical examinations, our discussion presents an exact calculation for the determination of the geometric phase. Through two representative examples, our calculation shows the intimate connection between the geometric phase and phase transition: different behaviors of the geometric phase can be identified in this paper, which are directly related to the energy gap above the ground state.

Affiliated with

Also associated with

No associations

Rating

Geometric Phase and Quantum Phase Transition : Two-Band 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 Geometric Phase and Quantum Phase Transition : Two-Band Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geometric Phase and Quantum Phase Transition : Two-Band Model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-662263