Quantum-field dynamics of expanding and contracting Bose-Einstein condensates
We analyze the dynamics of quantum statistics in a harmonically trapped Bose-Einstein condensate, whose two-body interaction strength is controlled via a Feshbach resonance. From an initially non-interacting coherent state, the quantum field undergoes Kerr squeezing, which can be qualitatively descr...
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| Veröffentlicht in: | arXiv.org 2007-09 |
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| creator | Wuester, S Dabrowska-Wuester, B J Scott, S M Close, J D Savage, C M |
| description | We analyze the dynamics of quantum statistics in a harmonically trapped Bose-Einstein condensate, whose two-body interaction strength is controlled via a Feshbach resonance. From an initially non-interacting coherent state, the quantum field undergoes Kerr squeezing, which can be qualitatively described with a single mode model. To render the effect experimentally accessible, we propose a homodyne scheme, based on two hyperfine components, which converts the quadrature squeezing into number squeezing. The scheme is numerically demonstrated using a two-component Hartree-Fock-Bogoliubov formalism. |
| doi_str_mv | 10.48550/arxiv.0709.1362 |
| format | Article |
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From an initially non-interacting coherent state, the quantum field undergoes Kerr squeezing, which can be qualitatively described with a single mode model. To render the effect experimentally accessible, we propose a homodyne scheme, based on two hyperfine components, which converts the quadrature squeezing into number squeezing. 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| subjects | Bose-Einstein condensates Compressing Mathematical models Matter & antimatter Physics - Other Condensed Matter Quantum statistics |
| title | Quantum-field dynamics of expanding and contracting Bose-Einstein condensates |
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