Quantum nonlinear sigma model with a damping term; Finite temperature renormalization group analysis

被引：0

作者：

Crisan, M ^{[1
]}

Grosu, I ^{[1
]}

机构：

[1] Univ Cluj, Dept Theoret Phys, Cluj Napoca 400084, Romania

来源：

JOURNAL OF SUPERCONDUCTIVITY | 2005年 / 18卷 / 04期

关键词：

non-linear quantum sigma model; quantum criticality; pseudogap in HTCS;

D O I：

10.1007/s10948-005-0041-y

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We study the behavior of the finite temperature quantum nonlinear sigma model in two dimensions in the presence of the damping of the form f (vertical bar omega(n)vertical bar) = gamma vertical bar omega n vertical bar(alpha), where ce satisfies alpha >= 1. The analytical calculations will be performed using alpha = 2 and the results will be compared with the standard results obtained for the standard quantum nonlinear sigma model. The behavior of such a system is connected with the pseudogap which appears in the normal state of the cuprate superconductors.

引用

页码：561 / 565

页数：5

共 50 条

[21] EQUATIONS OF RENORMALIZATION-GROUP FOR A TWO-DIMENSIONAL NONLINEAR SIGMA-MODEL WITH TORSION
KETOV, SV
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII FIZIKA, 1988, 31 (09): : 37 - 40
[22] Renormalization group in quantum mechanics at zero and finite temperature -: art. no. 046129
Gosselin, P
Mohrbach, H
Bérard, A
PHYSICAL REVIEW E, 2001, 64 (04):
[23] Renormalization group analysis of the three-dimensional Gross-Neveu model at finite temperature and density
Castorina, P
Mazza, M
Zappalà, D
PHYSICS LETTERS B, 2003, 567 (1-2) : 31 - 38
[24] ZERO TEMPERATURE QUANTUM RENORMALIZATION-GROUP
BLOTE, HWJ
BONNER, JC
FIELDS, JN
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1980, 15-8 (JAN-) : 405 - 406
[25] FINITE-TEMPERATURE QUANTUM RENORMALIZATION-GROUP THEORY FOR THE ONE-DIMENSIONAL ANISOTROPIC HEISENBERG-MODEL
BERLINSKY, AJ
KALLIN, C
PHYSICAL REVIEW B, 1981, 23 (05): : 2247 - 2256
[26] THE QUANTUM NONLINEAR SIGMA-MODEL
FADDEEV, LD
PHYSICA D, 1984, 11 (03): : 416 - 416
[27] RENORMALIZATION A-LA BRS OF THE NONLINEAR SIGMA-MODEL
BLASI, A
COLLINA, R
NUCLEAR PHYSICS B, 1987, 285 (02) : 204 - 228
[28] Gauge-invariant renormalization group at finite temperature
DAttanasio, M
Pietroni, M
NUCLEAR PHYSICS B, 1997, 498 (1-2) : 443 - 466
[29] Frustrated quantum spins at finite temperature: Pseudo-Majorana functional renormalization group approach
Niggemann, Nils
Sbierski, Bjorn
Reuther, Johannes
PHYSICAL REVIEW B, 2021, 103 (10)
[30] FINITE TEMPERATURE RENORMALIZATION-GROUP EQUATION IN QCD
FUJIMOTO, Y
YAMADA, H
PHYSICS LETTERS B, 1987, 195 (02) : 231 - 234

← 1 2 3 4 5 →