Interference-induced suppression of particle emission from a Bose-Einstein condensate in lattice with time-periodic modulations
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866913485940588544 |
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| author | Lai, L. Q. Li, Z. |
| author_facet | Lai, L. Q. Li, Z. |
| contents | Emission of matter-wave jets from a parametrically driven condensate has attracted significant experimental and theoretical attention due to the appealing visual effects and potential metrological applications. In this work, we investigate the collective particle emission from a Bose-Einstein condensate confined in a one-dimensional lattice with periodically modulated interparticle interactions. We give the regimes for discrete modes, and find that the emission can be distinctly suppressed. The configuration induces a broad band, but few particles are ejected due to the interference of the matter waves. We further qualitatively model the emission process, and demonstrate the short-time behaviors. This engineering provides a way for manipulating the propagation of particles and the corresponding dynamics of condensates in lattices, and may find use in the dynamical excitation control of other nonequilibrium problems with time-periodic driving. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_05119 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Interference-induced suppression of particle emission from a Bose-Einstein condensate in lattice with time-periodic modulations Lai, L. Q. Li, Z. Quantum Gases Emission of matter-wave jets from a parametrically driven condensate has attracted significant experimental and theoretical attention due to the appealing visual effects and potential metrological applications. In this work, we investigate the collective particle emission from a Bose-Einstein condensate confined in a one-dimensional lattice with periodically modulated interparticle interactions. We give the regimes for discrete modes, and find that the emission can be distinctly suppressed. The configuration induces a broad band, but few particles are ejected due to the interference of the matter waves. We further qualitatively model the emission process, and demonstrate the short-time behaviors. This engineering provides a way for manipulating the propagation of particles and the corresponding dynamics of condensates in lattices, and may find use in the dynamical excitation control of other nonequilibrium problems with time-periodic driving. |
| title | Interference-induced suppression of particle emission from a Bose-Einstein condensate in lattice with time-periodic modulations |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2401.05119 |