Creation of entangled atomic states by an analogue of the Dynamical Casimir Effect
arXiv:1805.02560 · doi:10.1088/1367-2630/aae116
Abstract
If the boundary conditions of the quantum vacuum are changed in time, quantum field theory predicts that real, observable particles can be created in the initially empty modes. Here, we realize this effect by changing the boundary conditions of a spinor Bose-Einstein condensate, which yields a population of initially unoccupied spatial and spin excitations. We prove that the excitations are created as entangled excitation pairs by certifying continuous-variable entanglement within the many-particle output state.
References in corpus (15)
- Peres-Horodecki separability criterion for continuous variable systems
- Inseparability criterion for continuous variable systems
- Precision Measurement of the Casimir Force from 0.1 to 0.9 microns
- Observation of the Dynamical Casimir Effect in a Superconducting Circuit
- Measurement of the Casimir force between parallel metallic surfaces
- Dynamical Casimir effect in a Josephson metamaterial
- An acoustic analog to the dynamical Casimir effect in a Bose-Einstein condensate
- From Cosmology to Cold Atoms: Observation of Sakharov Oscillations in Quenched Atomic Superfluids
- Satisfying the Einstein-Podolsky-Rosen criterion with massive particles
- Density correlations and dynamical Casimir emission of Bogoliubov phonons in modulated atomic Bose-Einstein condensates
- Multi-resonant spinor dynamics in a Bose-Einstein condensate
- Spontaneous breaking of spatial and spin symmetry in spinor condensates
- Parametric Excitation and Squeezing in a Many-Body Spin System
- Dynamical Casimir effect for magnons in a spinor Bose-Einstein condensate
- Spontaneous symmetry breaking in spinor Bose-Einstein condensates