Ultracold dipolar bosons trapped in atomtronic circuits
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866929399304028160 |
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| author | Rovirola, Marc Briongos-Merino, Héctor Juliá-Díaz, Bruno Guilleumas, Montserrat |
| author_facet | Rovirola, Marc Briongos-Merino, Héctor Juliá-Díaz, Bruno Guilleumas, Montserrat |
| contents | We consider a ring-shaped triple-well potential with few polar bosons with in-plane dipole orientation. By diagonalizing the extended Bose-Hubbard Hamiltonian, we investigate the ground state properties of the system as we rotate the dipole angle and vary the on-site and dipole-dipole interaction strengths. We find that the anisotropic character of the dipolar interactions, as well as the competition between dipole and on-site interactions lead to different ground states and that the entanglement between sites also depends on the number of particles. We further characterize the system by studying the condensed fraction and coherence properties for different polarization angles, highlighting the possible effect of the dipolar interaction as manipulation tool. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_11620 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Ultracold dipolar bosons trapped in atomtronic circuits Rovirola, Marc Briongos-Merino, Héctor Juliá-Díaz, Bruno Guilleumas, Montserrat Quantum Gases We consider a ring-shaped triple-well potential with few polar bosons with in-plane dipole orientation. By diagonalizing the extended Bose-Hubbard Hamiltonian, we investigate the ground state properties of the system as we rotate the dipole angle and vary the on-site and dipole-dipole interaction strengths. We find that the anisotropic character of the dipolar interactions, as well as the competition between dipole and on-site interactions lead to different ground states and that the entanglement between sites also depends on the number of particles. We further characterize the system by studying the condensed fraction and coherence properties for different polarization angles, highlighting the possible effect of the dipolar interaction as manipulation tool. |
| title | Ultracold dipolar bosons trapped in atomtronic circuits |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2403.11620 |