Finite temperature fidelity susceptibility for one-dimensional quantum systems

Details Finite temperature fidelity susceptibility for one-dimensional quantum systems Finite temperature fidelity susceptibility for one-dimensional quantum systems

2010-06-13

arxiv.org/abs/1006.2522v2

Phys. Rev. Lett. 105, 117203 (2010)

Physics

Condensed Matter

Strongly Correlated Electrons

typo in Eq. (9) corrected, published version

Scientific paper

10.1103/PhysRevLett.105.117203

We calculate the fidelity susceptibility chi_f for the Luttinger model and show that there is a universal contribution linear in temperature T (or inverse length 1/L). Furthermore, we develop an algorithm - based on a lattice path integral approach - to calculate the fidelity F(T) in the thermodynamic limit for one-dimensional quantum systems. We check the Luttinger model predictions by calculating chi_f(T) analytically for free spinless fermions and numerically for the XXZ chain. Finally, we study chi_f at the two phase transitions in this model.

Affiliated with

Also associated with

No associations

Rating

Finite temperature fidelity susceptibility for one-dimensional quantum systems 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 Finite temperature fidelity susceptibility for one-dimensional quantum systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Finite temperature fidelity susceptibility for one-dimensional quantum systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-625994