TY - GEN
T1 - Vortex structure in superfluid color-flavor locked quark matter
AU - Alford, Mark G.
AU - Mallavarapu, S. Kumar
AU - Vachaspati, Tanmay
AU - Windisch, Andreas
N1 - Funding Information:
Acknowledgments We thank Andreas Schmitt for helpful discussions. This study has been supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under Award number DE-FG02-05ER41375. AW acknowledges support through the Austrian Science Fund (FWF) Schrodinger Fellowship J 3800-N27. TV acknowledges support by the U.S. Department of Energy, Office of Science, Office of High Energy Physics under Award number DE-SC0013605.
Publisher Copyright:
© The Authors, published by EDP Sciences, 2016.
PY - 2016/11/25
Y1 - 2016/11/25
N2 - The core region of a neutron star may feature quark matter in the color-flavor-locked (CFL) phase. The CFL condensate breaks the baryon number symmetry, such that the phenomenon of superfluidity arises. If the core of the star is rotating, vortices will form in the superfluid, carrying the quanta of angular momentum. In a previous study we have solved the question of stability of these vortices, where we found numerical proof of a conjectured instability, according to which superfluid vortices will decay into an arrangement of so-called semi-superfluid fluxtubes. Here we report first results of an extension of our framework that allows us to study multi-vortex dynamics. This will in turn enable us to investigate the structure of semi-superfluid string lattices, which could be relevant to study pinning phenomena at the boundary of the core.
AB - The core region of a neutron star may feature quark matter in the color-flavor-locked (CFL) phase. The CFL condensate breaks the baryon number symmetry, such that the phenomenon of superfluidity arises. If the core of the star is rotating, vortices will form in the superfluid, carrying the quanta of angular momentum. In a previous study we have solved the question of stability of these vortices, where we found numerical proof of a conjectured instability, according to which superfluid vortices will decay into an arrangement of so-called semi-superfluid fluxtubes. Here we report first results of an extension of our framework that allows us to study multi-vortex dynamics. This will in turn enable us to investigate the structure of semi-superfluid string lattices, which could be relevant to study pinning phenomena at the boundary of the core.
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U2 - 10.1051/epjconf/201612900035
DO - 10.1051/epjconf/201612900035
M3 - Conference contribution
AN - SCOPUS:85006109882
T3 - EPJ Web of Conferences
BT - QCD at Work 2016 - International Workshop on Quantum Chromodynamics - Theory and Experiment
A2 - De Fazio, Fulvia
A2 - Colangelo, Pietro
A2 - Coriano, Claudio
A2 - Bruno, Giuseppe Eugenio
A2 - Chiodini, Gabriele
A2 - Nappi, Eugenio
A2 - Spagnolo, Stefania
A2 - Creanza, Donato M.
PB - EDP Sciences
T2 - 8th International Workshop on Quantum Chromodynamics - Theory and Experiment, QCD at Work 2016
Y2 - 27 June 2016 through 30 June 2016
ER -