STRINGS, SUPERFLUID VORTICES, AND RELATIVITY

被引:15
作者
BENYAACOV, U [1 ]
机构
[1] BEN GURION UNIV NEGEV,DEPT PHYS,IL-84105 BEER SHEVA,ISRAEL
来源
PHYSICAL REVIEW D | 1991年 / 44卷 / 08期
关键词
D O I
10.1103/PhysRevD.44.2452
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The domain of validity of the harmonicity assumption for global strings (i.e., the assumption that the Goldstone boson is a free massless field) and the related incompressibility assumption for an irrotational flow with isolated vortices (which include superfluid vortices as a particular case) are investigated in a combined Lorentz-covariant model. A modification of the Kalb-Ramond interstring interaction which does not take these assumptions into account is developed, and first-order corrections to the Kalb-Ramond fields are calculated. These corrections are found to be of the order of (core radius/intervortex distance)2, implying that they are expected to be significant in understanding vortex creation and the intercommuting of vortices. The corrections are also interpreted as inducing vorticity in the medium in which the vortices appear, including in the vacuum in which global strings appear.
引用
收藏
页码:2452 / 2458
页数:7
相关论文
共 37 条
[1]   TOPOLOGICAL PICTURE OF COSMIC-STRING SELF-INTERSECTION [J].
ALBRECHT, A ;
YORK, T .
PHYSICAL REVIEW D, 1988, 38 (10) :2958-2962
[2]  
[Anonymous], 1945, HYDRODYNAMICS
[3]  
[Anonymous], 2002, ELECTRODYNAMICS CONT
[4]  
Batchelor C.K., 1967, INTRO FLUID DYNAMICS, V1st ed.
[5]   HELICITY CONSERVATION-LAWS FOR FLUIDS AND PLASMAS [J].
BEKENSTEIN, JD .
ASTROPHYSICAL JOURNAL, 1987, 319 (01) :207-214
[6]   SYMMETRY-BREAKING INDUCED BY CHARGE-DENSITY AND THE ENTROPY OF INTERACTING FIELDS [J].
BEKENSTEIN, JD ;
GUENDELMAN, EI .
PHYSICAL REVIEW D, 1987, 35 (02) :716-731
[7]  
BENYAACOV U, 1991, THESIS HEBREW U JERU
[8]   Q-BALLS [J].
COLEMAN, S .
NUCLEAR PHYSICS B, 1985, 262 (02) :263-283
[9]   RELATIVISTIC SUPERFLUIDS AND VORTEX RINGS [J].
DAVIS, RL .
PHYSICAL REVIEW D, 1989, 40 (12) :4033-4036
[10]   ANTISYMMETRIC TENSORS AND SPONTANEOUS SYMMETRY-BREAKING [J].
DAVIS, RL ;
SHELLARD, EPS .
PHYSICS LETTERS B, 1988, 214 (02) :219-222