Vortex-core structure in neutral fermion superfluids with population imbalance

Quantized vortex-core structure is theoretically investigated in fermion superfluids with population imbalance for two atom species of neutral atom clouds near a Feshbach resonance. In contrast with the vortex core in balance case where the quantum depletion makes a vortex visible through the densit...

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Published in:Physical review letters 2006-11, Vol.97 (18), p.180407-180407, Article 180407
Main Authors: Takahashi, M, Mizushima, T, Ichioka, M, Machida, K
Format: Article
Language:English
Subjects:
ATOMS
BOUND STATE
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DENSITY
FERMIONS
RESONANCE
SUPERFLUIDITY
VORTICES
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cited_by cdi_FETCH-LOGICAL-c335t-ac56fa03f4ec25e1056946cbacede45cee717e7b4f8b8d42edfbd4b33f2f9a553
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creator Takahashi, M
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Ichioka, M
Machida, K
description Quantized vortex-core structure is theoretically investigated in fermion superfluids with population imbalance for two atom species of neutral atom clouds near a Feshbach resonance. In contrast with the vortex core in balance case where the quantum depletion makes a vortex visible through the density profile measurement, the vortex core is filled in and becomes less visible because the quantized discrete bound states are occupied exclusively by the majority species. Yet it is shown that the core can be visible through the minority density profile experiment using phase contrast imaging, revealing an interesting opportunity to examine low-lying fermionic core bound states unexplored so far.
doi_str_mv 10.1103/PhysRevLett.97.180407
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source American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list)
subjects ATOMS
BOUND STATE
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DENSITY
FERMIONS
RESONANCE
SUPERFLUIDITY
VORTICES
title Vortex-core structure in neutral fermion superfluids with population imbalance
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