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Core structure and non-Abelian reconnection of defects in a biaxial nematic spin-2 Bose-Einstein condensate

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Core structure and non-Abelian reconnection of defects in a biaxial nematic spin-2 Bose-Einstein condensate. / Borgh, Magnus O.; Ruostekoski, Janne.
In: Physical review letters, Vol. 117, 275302, 29.12.2016.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Borgh, MO & Ruostekoski, J 2016, 'Core structure and non-Abelian reconnection of defects in a biaxial nematic spin-2 Bose-Einstein condensate', Physical review letters, vol. 117, 275302. https://doi.org/10.1103/PhysRevLett.117.275302

APA

Borgh, M. O., & Ruostekoski, J. (2016). Core structure and non-Abelian reconnection of defects in a biaxial nematic spin-2 Bose-Einstein condensate. Physical review letters, 117, Article 275302. https://doi.org/10.1103/PhysRevLett.117.275302

Vancouver

Borgh MO, Ruostekoski J. Core structure and non-Abelian reconnection of defects in a biaxial nematic spin-2 Bose-Einstein condensate. Physical review letters. 2016 Dec 29;117:275302. doi: 10.1103/PhysRevLett.117.275302

Author

Borgh, Magnus O. ; Ruostekoski, Janne. / Core structure and non-Abelian reconnection of defects in a biaxial nematic spin-2 Bose-Einstein condensate. In: Physical review letters. 2016 ; Vol. 117.

Bibtex

@article{582c398d0c2c4434b7e0b7002392adc6,
title = "Core structure and non-Abelian reconnection of defects in a biaxial nematic spin-2 Bose-Einstein condensate",
abstract = "We calculate the energetic structure of defect cores and propose controlled methods to imprint a nontrivially entangled vortex pair that undergoes non-Abelian vortex reconnection in a biaxial nematic spin-2 condensate. For a singular vortex, we find three superfluid cores in addition to depletion of the condensate density. These exhibit order parameter symmetries that are different from the discrete symmetry of the biaxial nematic phase, forming an interface between the defect and the bulk superfluid. We provide a detailed analysis of phase mixing in the resulting vortex cores and find an instability dependent upon the orientation of the order parameter. We further show that the spin-2 condensate is a promising system for observing spontaneous deformation of a point defect into an “Alice ring” that has so far avoided experimental detection.",
author = "Borgh, {Magnus O.} and Janne Ruostekoski",
note = "{\textcopyright} 2016 American Physical Society",
year = "2016",
month = dec,
day = "29",
doi = "10.1103/PhysRevLett.117.275302",
language = "English",
volume = "117",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",

}

RIS

TY - JOUR

T1 - Core structure and non-Abelian reconnection of defects in a biaxial nematic spin-2 Bose-Einstein condensate

AU - Borgh, Magnus O.

AU - Ruostekoski, Janne

N1 - © 2016 American Physical Society

PY - 2016/12/29

Y1 - 2016/12/29

N2 - We calculate the energetic structure of defect cores and propose controlled methods to imprint a nontrivially entangled vortex pair that undergoes non-Abelian vortex reconnection in a biaxial nematic spin-2 condensate. For a singular vortex, we find three superfluid cores in addition to depletion of the condensate density. These exhibit order parameter symmetries that are different from the discrete symmetry of the biaxial nematic phase, forming an interface between the defect and the bulk superfluid. We provide a detailed analysis of phase mixing in the resulting vortex cores and find an instability dependent upon the orientation of the order parameter. We further show that the spin-2 condensate is a promising system for observing spontaneous deformation of a point defect into an “Alice ring” that has so far avoided experimental detection.

AB - We calculate the energetic structure of defect cores and propose controlled methods to imprint a nontrivially entangled vortex pair that undergoes non-Abelian vortex reconnection in a biaxial nematic spin-2 condensate. For a singular vortex, we find three superfluid cores in addition to depletion of the condensate density. These exhibit order parameter symmetries that are different from the discrete symmetry of the biaxial nematic phase, forming an interface between the defect and the bulk superfluid. We provide a detailed analysis of phase mixing in the resulting vortex cores and find an instability dependent upon the orientation of the order parameter. We further show that the spin-2 condensate is a promising system for observing spontaneous deformation of a point defect into an “Alice ring” that has so far avoided experimental detection.

U2 - 10.1103/PhysRevLett.117.275302

DO - 10.1103/PhysRevLett.117.275302

M3 - Journal article

VL - 117

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

M1 - 275302

ER -