Squeezing and entanglement of density oscillations in a Bose-Einstein condensate

Abstract

The dispersive interaction of atoms and a far-detuned light field allows nondestructive imaging of the density oscillations in Bose-Einstein condensates. Starting from a ground state condensate, we investigate how the measurement back action leads to squeezing and entanglement of the quantized density oscillations. In particular, we show that properly timed, stroboscopic imaging and feedback can be used to selectively address specific eigenmodes and avoid excitation of non-targeted modes of the system.

6 pages, 4 figures

References in corpus (18)

• Nonlinear atom interferometer surpasses classical precision limit
• Quantum teleportation between light and matter
• Experimental demonstration of quantum memory for light
• Squeezing and entanglement in a Bose-Einstein condensate
• Twin matter waves for interferometry beyond the classical limit
• Superpixel-based spatial amplitude and phase modulation using a digital micromirror device
• Scalable Spin Squeezing for Quantum-Enhanced Magnetometry with Bose-Einstein Condensates
• An atomic Hong-Ou-Mandel experiment
• Observation of atom pairs in spontaneous four wave mixing of two colliding Bose-Einstein Condensates
• Generation of a squeezed state of an oscillator by stroboscopic back-action-evading measurement
• Quantum Spin Dynamics of Mode-Squeezed Luttinger Liquids in Two-Component Atomic Gases
• Speckle Imaging of Spin Fluctuations in a Strongly Interacting Fermi Gas
• Violation of the Cauchy-Schwarz inequality with matter waves
• REVIEW. Quantum optics with ultracold quantum gases: towards the full quantum regime of the light-matter interaction
• Continuous measurement feedback control of a Bose-Einstein condensate using phase contrast imaging
• Classical stochastic measurement trajectories: Bosonic atomic gases in an optical cavity and quantum measurement backaction
• Bose-Einstein condensate of metastable helium for quantum correlation experiments
• Hellinger distance as a measure of Gaussian discord

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