Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2006-10-20
Physical Review Letters 98, 067203 (2007)
Physics
Condensed Matter
Statistical Mechanics
4 pages, 1 figure, revised version. To appear in Physical Review Letters
Scientific paper
10.1103/PhysRevLett.98.067203
The emergence of a finite staggered magnetization in quantum Heisenberg antiferromagnets subject to a uniform magnetic field can be viewed as Bose-Einstein condensation of magnons. Using non-perturbative results for the infrared behavior of the interacting Bose gas, we present exact results for the staggered spin-spin correlation functions of quantum antiferromagnets in a magnetic field at zero temperature. In particular, we show that in dimensions 1 < D <= 3 the longitudinal dynamic structure factor S_parallel(q,omega) describing staggered spin fluctuations in the direction of the staggered magnetization exhibits a critical continuum whose weight can be controlled experimentally by varying the magnetic field.
Hasselmann Nils
Kopietz Peter
Kreisel Andreas
No associations
LandOfFree
Probing Anomalous Longitudinal Fluctuations of the Interacting Bose Gas via Bose-Einstein Condensation of Magnons 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 Probing Anomalous Longitudinal Fluctuations of the Interacting Bose Gas via Bose-Einstein Condensation of Magnons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing Anomalous Longitudinal Fluctuations of the Interacting Bose Gas via Bose-Einstein Condensation of Magnons will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-361700