Hidden vortex lattices in a thermally paired superfluid

被引:17
作者
Dahl, E. K. [1 ]
Babaev, E. [2 ,3 ]
Sudbo, A. [1 ]
机构
[1] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway
[2] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA
[3] Royal Inst Technol, Dept Theoret Phys, S-10691 Stockholm, Sweden
来源
PHYSICAL REVIEW B | 2008年 / 78卷 / 14期
关键词
D O I
10.1103/PhysRevB.78.144510
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We study the evolution of rotational response of a statistical mechanical model of two-component superfluid with a nondissipative drag interaction as the system undergoes a transition into a paired superfluid phase at finite temperature. The transition manifests itself in a change of (i) vortex-lattice symmetry and (ii) nature of the vortex state. Instead of a vortex lattice, the system forms a highly disordered tangle which constantly undergoes merger and reconnecting processes involving different types of vortices with a "hidden" breakdown of translation symmetry.
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页数:5
相关论文
共 20 条
[1]  
ANDREEV AF, 1975, SOV PHYS JETP, V42, P164
[2]   A superconductor to superfluid phase transition in liquid metallic hydrogen [J].
Babaev, E ;
Sudbo, A ;
Ashcroft, NW .
NATURE, 2004, 431 (7009) :666-668
[3]  
Babaev E, 2004, NUCL PHYS B, V686, P397, DOI [10.1016/j.nuclphysb.2004.02.021, 10.1016/j.nuciphysb.2004.02.021]
[4]   Preemptive vortex-loop proliferation in multicomponent interacting Bose-Einstein condensates [J].
Dahl, E. K. ;
Babaev, E. ;
Kragset, S. ;
Sudbo, A. .
PHYSICAL REVIEW B, 2008, 77 (14)
[5]   Nondissipative drag of superflow in a two-component Bose gas [J].
Fil, DV ;
Shevchenko, SI .
PHYSICAL REVIEW A, 2005, 72 (01)
[6]   Drag effect and topological complexes in strongly interacting two-component lattice superfluids [J].
Kaurov, VM ;
Kuklov, AB ;
Meyerovich, AE .
PHYSICAL REVIEW LETTERS, 2005, 95 (09)
[7]   Effects of boundaries and density inhomogeneity on states of vortex matter in Bose-Einstein condensates at finite temperature [J].
Kragset, S. ;
Babaev, E. ;
Sudbo, A. .
PHYSICAL REVIEW A, 2008, 77 (04)
[8]   Thermal fluctuations of vortex matter in trapped Bose-Einstein condensates [J].
Kragset, S. ;
Babaev, E. ;
Sudbo, A. .
PHYSICAL REVIEW LETTERS, 2006, 97 (17)
[9]   Weak first-order superfluid-solid quantum phase transitions [J].
Kuklov, A ;
Prokof'ev, N ;
Svistunov, B .
PHYSICAL REVIEW LETTERS, 2004, 93 (23)
[10]   Superfluid-superfluid phase transitions in a two-component Bose-Einstein condensate [J].
Kuklov, A ;
Prokof'ev, N ;
Svistunov, B .
PHYSICAL REVIEW LETTERS, 2004, 92 (03) :4