High-precision measurement of the thermal exponent for the three-dimensional XY universality class

被引：58

作者：

Burovski, Evgeni ^{[1
]}

Machta, Jonathan

Prokof'ev, Nikolay

Svistunov, Boris

机构：

[1] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA

[2] IV Kurchatov Atom Energy Inst, Russian Res Ctr, Moscow 123182, Russia

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.74.132502

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Simulation results are reported for the critical point of the two-component phi(4) field theory. The correlation-length exponent is measured to high precision with the result nu=0.6717(3). This value is in agreement with recent simulation results [Campostrini , Phys. Rev. B 63, 214503 (2001)] and marginally agrees with the most recent space-based measurements of the superfluid transition in He-4 [Lipa , Phys. Rev. B 68, 174518 (2003)].

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