Signatures of rigidity and second sound in dipolar supersolids
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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_ | 1866917423828959232 |
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| author | Bougas, G. A. Bland, T. Sadeghpour, H. R. Mistakidis, S. I. |
| author_facet | Bougas, G. A. Bland, T. Sadeghpour, H. R. Mistakidis, S. I. |
| contents | We propose a dynamical protocol to probe the rigidity and phase coherence of dipolar supersolids by merging initially separated fragments in quasi-one-dimensional (1D) double-well potentials. Simulations based on the extended Gross-Pitaevskii equation reveal distinct dynamical signatures across phases. Supersolids exhibit damped crystal oscillations following barrier removal, with the damping rate reflecting superfluid connectivity. A phase-imprinted jump additionally triggers metastable dark solitons, which excites second sound, as revealed by an out-of-phase drift between the droplet lattice and the superfluid background. Our results show a realizable path to dynamically detect the second sound and rigidity of supersolids, as well as to realize and probe soliton formation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_22290 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Signatures of rigidity and second sound in dipolar supersolids Bougas, G. A. Bland, T. Sadeghpour, H. R. Mistakidis, S. I. Quantum Gases Quantum Physics We propose a dynamical protocol to probe the rigidity and phase coherence of dipolar supersolids by merging initially separated fragments in quasi-one-dimensional (1D) double-well potentials. Simulations based on the extended Gross-Pitaevskii equation reveal distinct dynamical signatures across phases. Supersolids exhibit damped crystal oscillations following barrier removal, with the damping rate reflecting superfluid connectivity. A phase-imprinted jump additionally triggers metastable dark solitons, which excites second sound, as revealed by an out-of-phase drift between the droplet lattice and the superfluid background. Our results show a realizable path to dynamically detect the second sound and rigidity of supersolids, as well as to realize and probe soliton formation. |
| title | Signatures of rigidity and second sound in dipolar supersolids |
| topic | Quantum Gases Quantum Physics |
| url | https://arxiv.org/abs/2506.22290 |