Dispersion Managed Elliptical Atomtronics for Interferometry
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866912139992629248 |
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| author | Raghav, Sriganapathy Ghosh, Suranjana Bera, Jayanta Roy, Utpal |
| author_facet | Raghav, Sriganapathy Ghosh, Suranjana Bera, Jayanta Roy, Utpal |
| contents | Circular atomtronics is known to exhibit a uniform ground state, unlike elliptical atomtronics. In elliptical atomtronics, the matter wave tends to accumulate along the semimajor edges during its time dynamics, which we depict by the survival function. Consequently, the dynamical time scales become coupled to the eccentricity, making the dynamics nontrivial for applications. We report that an appropriate dispersion management can decouple the time scales from the eccentricity. One can choose the suitable dispersion coefficient from the overlap function involving the corresponding ground state. We focus on producing distinct fractional matter waves inside an elliptical waveguide to achieve efficient atom interferometry. The said dispersion engineering can recover fractional revivals in the elliptical waveguide, analogous to the circular case. We demonstrate atom interferometry for the engineered elliptical atomtronics, where matter wave interference is mediated by an external harmonic trap for controlled interference patterns. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_08904 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Dispersion Managed Elliptical Atomtronics for Interferometry Raghav, Sriganapathy Ghosh, Suranjana Bera, Jayanta Roy, Utpal Quantum Physics Quantum Gases Circular atomtronics is known to exhibit a uniform ground state, unlike elliptical atomtronics. In elliptical atomtronics, the matter wave tends to accumulate along the semimajor edges during its time dynamics, which we depict by the survival function. Consequently, the dynamical time scales become coupled to the eccentricity, making the dynamics nontrivial for applications. We report that an appropriate dispersion management can decouple the time scales from the eccentricity. One can choose the suitable dispersion coefficient from the overlap function involving the corresponding ground state. We focus on producing distinct fractional matter waves inside an elliptical waveguide to achieve efficient atom interferometry. The said dispersion engineering can recover fractional revivals in the elliptical waveguide, analogous to the circular case. We demonstrate atom interferometry for the engineered elliptical atomtronics, where matter wave interference is mediated by an external harmonic trap for controlled interference patterns. |
| title | Dispersion Managed Elliptical Atomtronics for Interferometry |
| topic | Quantum Physics Quantum Gases |
| url | https://arxiv.org/abs/2404.08904 |