Two-site entropy and quantum phase transitions in low-dimensional models

Details Two-site entropy and quantum phase transitions in low-dimensional models Two-site entropy and quantum phase transitions in low-dimensional models

2005-11-03

arxiv.org/abs/cond-mat/0511081v2

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 7 figures

Scientific paper

10.1103/PhysRevLett.96.116401

We propose a new approach to study quantum phase transitions in low-dimensional lattice models. It is based on studying the von Neumann entropy of two neighboring central sites in a long chain. It is demonstrated that the procedure works equally well for fermionic and spin models, and the two-site entropy is a better indicator of quantum phase transition than calculating gaps, order parameters or the single-site entropy. The method is especially convenient when the density-matrix renormalization-group (DMRG) algorithm is used.

Affiliated with

Also associated with

No associations

Rating

Two-site entropy and quantum phase transitions in low-dimensional models 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 Two-site entropy and quantum phase transitions in low-dimensional models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-site entropy and quantum phase transitions in low-dimensional models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-483708