Volume 126, Number 3, May 2019
|Number of page(s)||7|
|Section||The Physics of Elementary Particles and Fields|
|Published online||31 May 2019|
Formation of topological vortices during superfluid transition in a rotating vessel
Institute of Physics - Bhubaneswar 751005, India and Homi Bhabha National Institute, Training School Complex - Anushakti Nagar, Mumbai 400085, India
Received: 18 February 2019
Accepted: 29 April 2019
Formation of topological defects during symmetry breaking phase transitions via the Kibble mechanism is extensively used in systems ranging from condensed-matter physics to the early stages of the universe. The Kibble mechanism uses topological arguments and predicts equal probabilities for the formation of defects and antidefects. Certain situations, however, require a net bias in the production of defects (or antidefects) during the transition, for example, superfluid transition in a rotating vessel, or flux tubes formation in a superconducting transition in the presence of external magnetic field. In this paper we present a modified Kibble mechanism for a specific system, 4He superfluid transition in a rotating vessel, which can produce the required bias of vortices over antivortices. Our results make distinctive predictions which can be tested in superfluid 4He experiments. These results also have important implications for superfluid phase transitions in rotating neutron stars and also for any superfluid phases of QCD arising in the non-central low-energy heavy-ion collision experiment due to an overall rotation.
PACS: 11.27.+d – Extended classical solutions; cosmic strings, domain walls, texture / 67.25.dk – Vortices and turbulence / 67.25.dg – Transport, hydrodynamics, and superflow
© EPLA, 2019
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