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Light-induced gauge fields for ultracold atoms | | N. Goldman
; G. Juzeliunas
; P. Ohberg
; I. B. Spielman
; | | Date: |
29 Aug 2013 | | Abstract: | Gauge fields are central in our modern understanding of physics at all
scales. At the highest energy scales known, the microscopic universe is
governed by particles interacting with each other through the exchange of gauge
bosons. At the largest length scales, our universe is ruled by gravity, whose
gauge structure suggests the existence of a particle - the graviton - that
mediates the gravitational force. At the mesoscopic scale, solid-state systems
are subjected to gauge fields of different nature: materials can be immersed in
external electromagnetic fields, but they can also feature emerging gauge
fields in their low-energy description. In this review, we focus on another
kind of gauge field: those engineered in systems of ultracold neutral atoms. In
these setups, atoms are suitably coupled to laser fields that generate
effective gauge potentials in their description. Neutral atoms "feeling"
laser-induced gauge potentials can potentially mimic the behavior of an
electron gas subjected to a magnetic field, but also, the interaction of
elementary particles with non-Abelian gauge fields. Here, we review different
realized and proposed techniques for creating gauge potentials - both Abelian
and non-Abelian - in atomic systems and discuss their implication in the
context of quantum simulation. While most of these setups concern the
realization of background and classical gauge potentials, we conclude with more
exotic proposals where these synthetic fields might be made dynamical, in view
of simulating interacting gauge theories with cold atoms. | | Source: | arXiv, 1308.6533 | | Services: | Forum | Review | PDF | Favorites | |
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