Geometric phases induced in auxiliary qubits by many-body systems near its critical points

Details Geometric phases induced in auxiliary qubits by many-body systems near its critical points Geometric phases induced in auxiliary qubits by many-body systems near its critical points

2007-03-07

arxiv.org/abs/quant-ph/0703049v1

Phys. Rev. A 75, 032103 (2007)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.75.032103

The geometric phase induced in an auxiliary qubit by a many-body system is calculated and discussed. Two kinds of coupling between the auxiliary qubit and the many-body system are considered, which lead to dephasing and dissipation in the qubit, respectively. As an example, we consider the XY spin-chain dephasingly couple to a qubit, the geometric phase induced in the qubit is presented and discussed. The results show that the geometric phase might be used to signal the critical points of the many-body system, and it tends to zero with the parameters of the many-body system going away from the critical points.

Affiliated with

Also associated with

No associations

Rating

Geometric phases induced in auxiliary qubits by many-body systems near its critical points 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 phases induced in auxiliary qubits by many-body systems near its critical points, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geometric phases induced in auxiliary qubits by many-body systems near its critical points will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-255322