Abstract
We realize a nondegenerate two-mode Dicke model with competing interactions in a Bose-Einstein condensate (BEC) coupled to two orthogonal polarization modes of a single optical cavity. The BEC is coupled to the cavity modes via the scalar and vectorial part of the atomic polarizability. We can independently change these couplings and determine their effect on a self-organization phase transition. Measuring the phases of the system, we characterize a crossover from a single-mode to a two-mode Dicke model. This work provides perspectives for the realization of coupled phases of spin and density. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000354759Publication status
publishedJournal / series
Physical Review AVolume
Pages / Article No.
Publisher
American Physical SocietyOrganisational unit
03599 - Esslinger, Tilman / Esslinger, Tilman
Funding
182650 - Interplay between Topology, Interactions and Dissipation in Driven Quantum Many-Body Systems (SNF)
175329 - Non-equilibrium dynamics in Atomic systems for QUAntum Simulation (SNF)
742579 - Mass, heat and spin transport in interlinked quantum gases (EC)
721465 - Collective effects and optomechanics in ultra-cold matter (EC)
Related publications and datasets
Is supplemented by: https://doi.org/10.3929/ethz-b-000367519
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