An acoustic analog to the dynamical Casimir effect in a Bose-Einstein condensate

Abstract

We have realized an acoustic analog to the Dynamical Casimir effect. The density of a trapped Bose-Einstein condensate is modulated by changing the trap stiffness. We observe the creation of correlated excitations with equal and opposite momenta, and show that for a well defined modulation frequency, the frequency of the excitations is half that of the trap modulation frequency.

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Cited by in corpus (13)

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• Experimental quantum cosmology in time-dependent optical media
• Quantum discord in the Dynamical Casimir Effect
• Dynamical Casimir effect and minimal temperature in quantum thermodynamics
• Instability of the superfluid flow as black-hole lasing effect
• Continuous intracavity monitoring of the dynamical Casimir effect
• Amplifying the Hawking signal in BECs
• Dynamical Casimir-Polder potentials in non-adiabatic conditions
• The analog of the Hawking effect in BECs