Quantum melting of two-component Rydberg crystals
We investigate the quantum melting of one-dimensional crystals that are realized in an atomic lattice in which ground state atoms are laser excited to two Rydberg states. We focus on a regime where both, intra- and interstate density-density interactions as well as coherent exchange interactions con...
| Main Authors: | , , |
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| Format: | Article |
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American Physical Society
2016
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| Online Access: | https://eprints.nottingham.ac.uk/38691/ |
| _version_ | 1848795669141127168 |
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| author | Lan, Zhihao Li, Weibin Lesanovsky, Igor |
| author_facet | Lan, Zhihao Li, Weibin Lesanovsky, Igor |
| author_sort | Lan, Zhihao |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We investigate the quantum melting of one-dimensional crystals that are realized in an atomic lattice in which ground state atoms are laser excited to two Rydberg states. We focus on a regime where both, intra- and interstate density-density interactions as well as coherent exchange interactions contribute. We determine stable crystalline phases in the classical limit and explore their melting under quantum fluctuations introduced by the excitation laser as well as two-body exchange. We find that within a specific parameter range quantum fluctuations introduced by the laser can give rise to a devil’s staircase structure which one might associate with transitions in the classical limit. The melting through exchange interactions is shown to also proceed in a steplike fashion, in the case of small crystals, due to the proliferation of Rydberg spin waves. |
| first_indexed | 2025-11-14T19:35:45Z |
| format | Article |
| id | nottingham-38691 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:35:45Z |
| publishDate | 2016 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-386912020-05-04T18:21:25Z https://eprints.nottingham.ac.uk/38691/ Quantum melting of two-component Rydberg crystals Lan, Zhihao Li, Weibin Lesanovsky, Igor We investigate the quantum melting of one-dimensional crystals that are realized in an atomic lattice in which ground state atoms are laser excited to two Rydberg states. We focus on a regime where both, intra- and interstate density-density interactions as well as coherent exchange interactions contribute. We determine stable crystalline phases in the classical limit and explore their melting under quantum fluctuations introduced by the excitation laser as well as two-body exchange. We find that within a specific parameter range quantum fluctuations introduced by the laser can give rise to a devil’s staircase structure which one might associate with transitions in the classical limit. The melting through exchange interactions is shown to also proceed in a steplike fashion, in the case of small crystals, due to the proliferation of Rydberg spin waves. American Physical Society 2016-11-11 Article PeerReviewed Lan, Zhihao, Li, Weibin and Lesanovsky, Igor (2016) Quantum melting of two-component Rydberg crystals. Physical Review A, 94 . 051603/1-051603/6. ISSN 2469-9934 http://journals.aps.org/pra/abstract/10.1103/PhysRevA.94.051603 doi:10.1103/PhysRevA.94.051603 doi:10.1103/PhysRevA.94.051603 |
| spellingShingle | Lan, Zhihao Li, Weibin Lesanovsky, Igor Quantum melting of two-component Rydberg crystals |
| title | Quantum melting of two-component Rydberg crystals |
| title_full | Quantum melting of two-component Rydberg crystals |
| title_fullStr | Quantum melting of two-component Rydberg crystals |
| title_full_unstemmed | Quantum melting of two-component Rydberg crystals |
| title_short | Quantum melting of two-component Rydberg crystals |
| title_sort | quantum melting of two-component rydberg crystals |
| url | https://eprints.nottingham.ac.uk/38691/ https://eprints.nottingham.ac.uk/38691/ https://eprints.nottingham.ac.uk/38691/ |