Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2002-07-08
Physical Review B 66, 235117 (2002).
Physics
Condensed Matter
Strongly Correlated Electrons
16 pages, 4 figures; (v2) additional clarifying remarks
Scientific paper
10.1103/PhysRevB.66.235117
We describe two dimensional models with a metallic Fermi surface which display quantum phase transitions controlled by strongly interacting critical field theories below their upper critical dimension. The primary examples involve transitions with a topological order parameter associated with dislocations in collinear spin density wave ("stripe") correlations: the gapping of the order parameter fluctuations leads to a fractionalization of spin and charge collective modes, and this transition has been proposed as a candidate for the cuprates near optimal doping. The coupling between the order parameter and long-wavelength volume and shape deformations of the Fermi surface is analyzed by the renormalization group, and a runaway flow to a non-perturbative regime is found in most cases. A phenomenological scaling analysis of simple observable properties of possible second order quantum critical points is presented, with results quite similar to those near quantum spin glass transitions and to phenomenological forms proposed by Schroeder et al. (cond-mat/0011002).
Morinari Takao
Sachdev Subir
No associations
LandOfFree
Strongly coupled quantum criticality with a Fermi surface in two dimensions: fractionalization of spin and charge collective modes 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 Strongly coupled quantum criticality with a Fermi surface in two dimensions: fractionalization of spin and charge collective modes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strongly coupled quantum criticality with a Fermi surface in two dimensions: fractionalization of spin and charge collective modes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-172317