Quantum Carpets of Higgs particles in a Supersolid
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866908429532004352 |
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| author | Mukherjee, Koushik Schubert, Malte Klemt, Ralf Bland, Thomas Pfau, Tilman Reimann, Stephanie |
| author_facet | Mukherjee, Koushik Schubert, Malte Klemt, Ralf Bland, Thomas Pfau, Tilman Reimann, Stephanie |
| contents | Supersolids formed from dipolar Bose-Einstein condensates (BECs) exhibit spontaneous density modulation while maintaining global phase coherence. This state of matter supports gapped amplitude (Higgs) excitations featuring a quadratic dispersion relation. While Higgs modes are typically strongly damped due to coupling with other amplitude and phase modes, imposing an experimentally realistic toroidal geometry allows us to numerically study the time evolution and dispersion of a localized Higgs quasiparticle excitation, with minimal residual coupling to sound modes. Strikingly, the quadratic dispersion leads to the occurrence of (fractional) revivals, similar to those seen in the optical Talbot effect or the so-called quantum carpets. The revival times provide a novel method for determining the effective mass of the Higgs particle through a non-spectroscopic approach. These results pave the way for further studies of coherent Higgs dynamics and mutual interactions between Higgs particles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_00989 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum Carpets of Higgs particles in a Supersolid Mukherjee, Koushik Schubert, Malte Klemt, Ralf Bland, Thomas Pfau, Tilman Reimann, Stephanie Quantum Gases Quantum Physics Supersolids formed from dipolar Bose-Einstein condensates (BECs) exhibit spontaneous density modulation while maintaining global phase coherence. This state of matter supports gapped amplitude (Higgs) excitations featuring a quadratic dispersion relation. While Higgs modes are typically strongly damped due to coupling with other amplitude and phase modes, imposing an experimentally realistic toroidal geometry allows us to numerically study the time evolution and dispersion of a localized Higgs quasiparticle excitation, with minimal residual coupling to sound modes. Strikingly, the quadratic dispersion leads to the occurrence of (fractional) revivals, similar to those seen in the optical Talbot effect or the so-called quantum carpets. The revival times provide a novel method for determining the effective mass of the Higgs particle through a non-spectroscopic approach. These results pave the way for further studies of coherent Higgs dynamics and mutual interactions between Higgs particles. |
| title | Quantum Carpets of Higgs particles in a Supersolid |
| topic | Quantum Gases Quantum Physics |
| url | https://arxiv.org/abs/2507.00989 |