Topological Defects and the Superfluid Transition of the s=1 Spinor Condensate in Two Dimensions
Abstract
The s=1 spinor Bose condensate at zero temperature supports ferromagnetic and polar phases that combine magnetic and superfluid ordering. We analyze the topological defects of the polar condensate, correcting previous studies, and show that the polar condensate in two dimensions is unstable at any finite temperature; instead, there is a nematic or paired superfluid phase with algebraic order in exp(2i{theta}), where {theta} is the superfluid phase, and no magnetic order. The KosterlitzThouless transition out of this phase is driven by unbinding of halfvortices (the spindisordered version of the combined spin and phase defects found by Zhou), and the anomalous universal 8T{sub c}/{pi} stiffness jump at the transition is confirmed in numerical simulations. The anomalous stiffness jump is a clear experimental signature of this phase and the corresponding phase transition.
 Authors:

 Department of Physics, University of California, Berkeley, California 94720 (United States)
 Publication Date:
 OSTI Identifier:
 20860840
 Resource Type:
 Journal Article
 Journal Name:
 Physical Review Letters
 Additional Journal Information:
 Journal Volume: 97; Journal Issue: 12; Other Information: DOI: 10.1103/PhysRevLett.97.120406; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 00319007
 Country of Publication:
 United States
 Language:
 English
 Subject:
 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CONDENSATES; PHASE TRANSFORMATIONS; SIMULATION; SPIN; SUPERFLUIDITY; TOPOLOGY; VORTICES
Citation Formats
Mukerjee, Subroto, Moore, J E, Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and Cenke, Xu. Topological Defects and the Superfluid Transition of the s=1 Spinor Condensate in Two Dimensions. United States: N. p., 2006.
Web. doi:10.1103/PHYSREVLETT.97.120406.
Mukerjee, Subroto, Moore, J E, Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, & Cenke, Xu. Topological Defects and the Superfluid Transition of the s=1 Spinor Condensate in Two Dimensions. United States. https://doi.org/10.1103/PHYSREVLETT.97.120406
Mukerjee, Subroto, Moore, J E, Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and Cenke, Xu. Fri .
"Topological Defects and the Superfluid Transition of the s=1 Spinor Condensate in Two Dimensions". United States. https://doi.org/10.1103/PHYSREVLETT.97.120406.
@article{osti_20860840,
title = {Topological Defects and the Superfluid Transition of the s=1 Spinor Condensate in Two Dimensions},
author = {Mukerjee, Subroto and Moore, J E and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 and Cenke, Xu},
abstractNote = {The s=1 spinor Bose condensate at zero temperature supports ferromagnetic and polar phases that combine magnetic and superfluid ordering. We analyze the topological defects of the polar condensate, correcting previous studies, and show that the polar condensate in two dimensions is unstable at any finite temperature; instead, there is a nematic or paired superfluid phase with algebraic order in exp(2i{theta}), where {theta} is the superfluid phase, and no magnetic order. The KosterlitzThouless transition out of this phase is driven by unbinding of halfvortices (the spindisordered version of the combined spin and phase defects found by Zhou), and the anomalous universal 8T{sub c}/{pi} stiffness jump at the transition is confirmed in numerical simulations. The anomalous stiffness jump is a clear experimental signature of this phase and the corresponding phase transition.},
doi = {10.1103/PHYSREVLETT.97.120406},
url = {https://www.osti.gov/biblio/20860840},
journal = {Physical Review Letters},
issn = {00319007},
number = 12,
volume = 97,
place = {United States},
year = {2006},
month = {9}
}