Stability of Quantum Critical Points in the Presence of Competing Orders

Details Stability of Quantum Critical Points in the Presence of Competing Orders Stability of Quantum Critical Points in the Presence of Competing Orders

2010-09-09

arxiv.org/abs/1009.1888v1

Phys.Rev.B82:165128,2010

Physics

Condensed Matter

Strongly Correlated Electrons

28 pages, 14 figures

Scientific paper

10.1103/PhysRevB.82.165128

We investigate the stability of Quantum Critical Points (QCPs) in the presence of two competing phases. These phases near QCPs are assumed to be either classical or quantum and assumed to repulsively interact via square-square interactions. We find that for any dynamical exponents and for any dimensionality strong enough interaction renders QCPs unstable, and drives transitions to become first order. We propose that this instability and the onset of first-order transitions lead to spatially inhomogeneous states in practical materials near putative QCPs. Our analysis also leads us to suggest that there is a breakdown of Conformal Field Theory (CFT) scaling in the Anti de Sitter models, and in fact these models contain first-order transitions in the strong coupling limit.

Affiliated with

Also associated with

No associations

Rating

Stability of Quantum Critical Points in the Presence of Competing Orders 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 Stability of Quantum Critical Points in the Presence of Competing Orders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stability of Quantum Critical Points in the Presence of Competing Orders will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-671477