Facilitation dynamics and localization phenomena in Rydberg lattice gases with position disorder
We explore the dynamics of Rydberg excitations in an optical tweezer array under anti-blockade (or facilitation) conditions. Due to the finite temperature the atomic positions are randomly spread, an effect that leads to quenched correlated disorder in the interatomic interaction strengths. This dra...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
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American Physical Society
2017
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| Online Access: | https://eprints.nottingham.ac.uk/41254/ |
| _version_ | 1848796231345635328 |
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| author | Marcuzzi, Matteo Minář, Jiří Barredo, Daniel Léséleuc, Sylvain de Labuhn, Hening Lahaye, Thierry Browaeys, Antoine Levi, Emanuele Lesanovsky, Igor |
| author_facet | Marcuzzi, Matteo Minář, Jiří Barredo, Daniel Léséleuc, Sylvain de Labuhn, Hening Lahaye, Thierry Browaeys, Antoine Levi, Emanuele Lesanovsky, Igor |
| author_sort | Marcuzzi, Matteo |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We explore the dynamics of Rydberg excitations in an optical tweezer array under anti-blockade (or facilitation) conditions. Due to the finite temperature the atomic positions are randomly spread, an effect that leads to quenched correlated disorder in the interatomic interaction strengths. This drastically affects the facilitation dynamics as we demonstrate experimentally on the elementary example of two atoms. To shed light on the role of disorder in a many-body setting we show that here the dynamics is governed by an Anderson-Fock model, i.e. an Anderson model formulated on a lattice with sites corresponding to many-body Fock states. We first consider a one-dimensional atom chain in a limit which is described by a one-dimensional Anderson-Fock model with disorder on every other site, featuring both localized and delocalized states. We then illustrate the effect of disorder experimentally in a situation in which the system maps on a two-dimensional Anderson-Fock model on a trimmed square lattice. We observe a clear suppression of excitation propagation which we ascribe to the localization of the many-body wavefunctions in Hilbert space. |
| first_indexed | 2025-11-14T19:44:42Z |
| format | Article |
| id | nottingham-41254 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:44:42Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-412542020-05-04T18:35:16Z https://eprints.nottingham.ac.uk/41254/ Facilitation dynamics and localization phenomena in Rydberg lattice gases with position disorder Marcuzzi, Matteo Minář, Jiří Barredo, Daniel Léséleuc, Sylvain de Labuhn, Hening Lahaye, Thierry Browaeys, Antoine Levi, Emanuele Lesanovsky, Igor We explore the dynamics of Rydberg excitations in an optical tweezer array under anti-blockade (or facilitation) conditions. Due to the finite temperature the atomic positions are randomly spread, an effect that leads to quenched correlated disorder in the interatomic interaction strengths. This drastically affects the facilitation dynamics as we demonstrate experimentally on the elementary example of two atoms. To shed light on the role of disorder in a many-body setting we show that here the dynamics is governed by an Anderson-Fock model, i.e. an Anderson model formulated on a lattice with sites corresponding to many-body Fock states. We first consider a one-dimensional atom chain in a limit which is described by a one-dimensional Anderson-Fock model with disorder on every other site, featuring both localized and delocalized states. We then illustrate the effect of disorder experimentally in a situation in which the system maps on a two-dimensional Anderson-Fock model on a trimmed square lattice. We observe a clear suppression of excitation propagation which we ascribe to the localization of the many-body wavefunctions in Hilbert space. American Physical Society 2017-02-10 Article PeerReviewed Marcuzzi, Matteo, Minář, Jiří, Barredo, Daniel, Léséleuc, Sylvain de, Labuhn, Hening, Lahaye, Thierry, Browaeys, Antoine, Levi, Emanuele and Lesanovsky, Igor (2017) Facilitation dynamics and localization phenomena in Rydberg lattice gases with position disorder. Physical Review Letters, 118 (6-10). 063606/1-063606/6. ISSN 1079-7114 http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.063606 doi:10.1103/PhysRevLett.118.063606 doi:10.1103/PhysRevLett.118.063606 |
| spellingShingle | Marcuzzi, Matteo Minář, Jiří Barredo, Daniel Léséleuc, Sylvain de Labuhn, Hening Lahaye, Thierry Browaeys, Antoine Levi, Emanuele Lesanovsky, Igor Facilitation dynamics and localization phenomena in Rydberg lattice gases with position disorder |
| title | Facilitation dynamics and localization phenomena in Rydberg lattice gases with position disorder |
| title_full | Facilitation dynamics and localization phenomena in Rydberg lattice gases with position disorder |
| title_fullStr | Facilitation dynamics and localization phenomena in Rydberg lattice gases with position disorder |
| title_full_unstemmed | Facilitation dynamics and localization phenomena in Rydberg lattice gases with position disorder |
| title_short | Facilitation dynamics and localization phenomena in Rydberg lattice gases with position disorder |
| title_sort | facilitation dynamics and localization phenomena in rydberg lattice gases with position disorder |
| url | https://eprints.nottingham.ac.uk/41254/ https://eprints.nottingham.ac.uk/41254/ https://eprints.nottingham.ac.uk/41254/ |