Toroidal dipolar supersolid with a rotating weak link
(2023) In Physical Review A 107(6).- Abstract
Ring-shaped superfluids with weak links provide a perfect environment for studying persistent currents and dynamic stirring protocols. Here, we investigate the effects of a weak-link system on dipolar supersolids. By calculating the ground-state energy at fixed angular momenta, we find that metastable persistent currents may exist in the supersolid phase near the superfluid transition point. When stirring the weak link rapidly enough, we show that vortices can enter the supersolid. These vortex entries cause phase slips, emitting solitonic excitations that interfere with the crystalline structure of the supersolid, leading to a continuous melting and recrystallization of the droplets. Finally, we examine the release of vortex-carrying... (More)
Ring-shaped superfluids with weak links provide a perfect environment for studying persistent currents and dynamic stirring protocols. Here, we investigate the effects of a weak-link system on dipolar supersolids. By calculating the ground-state energy at fixed angular momenta, we find that metastable persistent currents may exist in the supersolid phase near the superfluid transition point. When stirring the weak link rapidly enough, we show that vortices can enter the supersolid. These vortex entries cause phase slips, emitting solitonic excitations that interfere with the crystalline structure of the supersolid, leading to a continuous melting and recrystallization of the droplets. Finally, we examine the release of vortex-carrying supersolids from the trap, observing that the released density exhibits a discrete structure associated with the density modulation and a central hole resulting from the vortex core.
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- author
- Nilsson Tengstrand, M. LU ; Stürmer, P. LU ; Ribbing, J. and Reimann, S. M. LU
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A
- volume
- 107
- issue
- 6
- article number
- 063316
- publisher
- American Physical Society
- external identifiers
-
- scopus:85163805628
- ISSN
- 2469-9926
- DOI
- 10.1103/PhysRevA.107.063316
- language
- English
- LU publication?
- yes
- id
- 72c0f8ac-67b3-46c9-9e56-375f30723e39
- date added to LUP
- 2023-09-18 13:35:06
- date last changed
- 2023-11-21 22:51:41
@article{72c0f8ac-67b3-46c9-9e56-375f30723e39,
abstract = {{<p>Ring-shaped superfluids with weak links provide a perfect environment for studying persistent currents and dynamic stirring protocols. Here, we investigate the effects of a weak-link system on dipolar supersolids. By calculating the ground-state energy at fixed angular momenta, we find that metastable persistent currents may exist in the supersolid phase near the superfluid transition point. When stirring the weak link rapidly enough, we show that vortices can enter the supersolid. These vortex entries cause phase slips, emitting solitonic excitations that interfere with the crystalline structure of the supersolid, leading to a continuous melting and recrystallization of the droplets. Finally, we examine the release of vortex-carrying supersolids from the trap, observing that the released density exhibits a discrete structure associated with the density modulation and a central hole resulting from the vortex core.</p>}},
author = {{Nilsson Tengstrand, M. and Stürmer, P. and Ribbing, J. and Reimann, S. M.}},
issn = {{2469-9926}},
language = {{eng}},
number = {{6}},
publisher = {{American Physical Society}},
series = {{Physical Review A}},
title = {{Toroidal dipolar supersolid with a rotating weak link}},
url = {{http://dx.doi.org/10.1103/PhysRevA.107.063316}},
doi = {{10.1103/PhysRevA.107.063316}},
volume = {{107}},
year = {{2023}},
}