Generalized Higgs mechanism in long-range-interacting quantum systems
The physics of long-range-interacting quantum systems is currently living through a renaissance driven by the fast progress in quantum simulators. In these systems many paradigms of statistical physics do not apply and also the universal long-wavelength physics gets substantially modified by the pre...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-07-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.033038 |
| _version_ | 1797210427372863488 |
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| author | Oriana K. Diessel Sebastian Diehl Nicolò Defenu Achim Rosch Alessio Chiocchetta |
| author_facet | Oriana K. Diessel Sebastian Diehl Nicolò Defenu Achim Rosch Alessio Chiocchetta |
| author_sort | Oriana K. Diessel |
| collection | DOAJ |
| description | The physics of long-range-interacting quantum systems is currently living through a renaissance driven by the fast progress in quantum simulators. In these systems many paradigms of statistical physics do not apply and also the universal long-wavelength physics gets substantially modified by the presence of long-ranged forces. Here we explore the low-energy excitations of several long-range-interacting quantum systems, including spin models and interacting Bose gases, in the ordered phase associated with the spontaneous breaking of U(1) and SU(2) symmetries. Instead of the expected Goldstone modes, we find three qualitatively different regimes, depending on the range of the interaction. In one of these regimes the Goldstone modes are gapped, via a generalization of the Higgs mechanism. Moreover, we show how this effect is realized in current experiments with ultracold atomic gases in optical cavities. |
| first_indexed | 2024-04-24T10:10:25Z |
| format | Article |
| id | doaj.art-29b5d91aab44433593d80b137a624638 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:10:25Z |
| publishDate | 2023-07-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-29b5d91aab44433593d80b137a6246382024-04-12T17:32:35ZengAmerican Physical SocietyPhysical Review Research2643-15642023-07-015303303810.1103/PhysRevResearch.5.033038Generalized Higgs mechanism in long-range-interacting quantum systemsOriana K. DiesselSebastian DiehlNicolò DefenuAchim RoschAlessio ChiocchettaThe physics of long-range-interacting quantum systems is currently living through a renaissance driven by the fast progress in quantum simulators. In these systems many paradigms of statistical physics do not apply and also the universal long-wavelength physics gets substantially modified by the presence of long-ranged forces. Here we explore the low-energy excitations of several long-range-interacting quantum systems, including spin models and interacting Bose gases, in the ordered phase associated with the spontaneous breaking of U(1) and SU(2) symmetries. Instead of the expected Goldstone modes, we find three qualitatively different regimes, depending on the range of the interaction. In one of these regimes the Goldstone modes are gapped, via a generalization of the Higgs mechanism. Moreover, we show how this effect is realized in current experiments with ultracold atomic gases in optical cavities.http://doi.org/10.1103/PhysRevResearch.5.033038 |
| spellingShingle | Oriana K. Diessel Sebastian Diehl Nicolò Defenu Achim Rosch Alessio Chiocchetta Generalized Higgs mechanism in long-range-interacting quantum systems Physical Review Research |
| title | Generalized Higgs mechanism in long-range-interacting quantum systems |
| title_full | Generalized Higgs mechanism in long-range-interacting quantum systems |
| title_fullStr | Generalized Higgs mechanism in long-range-interacting quantum systems |
| title_full_unstemmed | Generalized Higgs mechanism in long-range-interacting quantum systems |
| title_short | Generalized Higgs mechanism in long-range-interacting quantum systems |
| title_sort | generalized higgs mechanism in long range interacting quantum systems |
| url | http://doi.org/10.1103/PhysRevResearch.5.033038 |
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