Synthetic magnetic fields induce Fraunhofer-like patterns in the critical current of atomic Josephson junctions via spatial interference and Josephson vortices, distinct from charged superconducting cases due to atomic neutrality.
Dalibard, Introduction to the physics of artificial gauge fields (2015), arXiv:1504.05520 [cond-mat.quant-gas]
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abstract
Simulating magnetic effects with cold gases of neutral atoms is a challenge. Since these atoms have no charge, one needs to create artificial gauge fields by taking advantage of the geometric phases that can result for instance from atom-light interaction. We review here some schemes that lead to the desired Hamiltonians, either in a bulk geometry or in a lattice configuration. We also detail the relations between some general concepts of magnetism, such as gauge invariance, Landau levels, topological bands, and the features that can be generated in cold atoms setups.
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cond-mat.quant-gas 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
Bosonization yields an explicit expression for Hall imbalance in N-leg bosonic ladders, with Hall resistance proportional to d(log charge stiffness)/d density for small fields.
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Fraunhofer Patterns in Atomic Josephson Junctions
Synthetic magnetic fields induce Fraunhofer-like patterns in the critical current of atomic Josephson junctions via spatial interference and Josephson vortices, distinct from charged superconducting cases due to atomic neutrality.
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Hall effect in multi-leg bosonic ladders
Bosonization yields an explicit expression for Hall imbalance in N-leg bosonic ladders, with Hall resistance proportional to d(log charge stiffness)/d density for small fields.