Trimer quantum spin liquid in a honeycomb array of Rydberg atoms
Abstract Quantum spin liquids are elusive but paradigmatic examples of strongly correlated quantum states that are characterized by long-range quantum entanglement. Recently, signatures of a gapped topological $${{\mathbb{Z}}}_{2}$$ Z 2 spin liquid have been observed in a system of Rydberg atoms; ho...
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
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Nature Portfolio
2023-12-01
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Series: | Communications Physics |
Online Access: | https://doi.org/10.1038/s42005-023-01470-z |
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author | Milan Kornjača Rhine Samajdar Tommaso Macrì Nathan Gemelke Sheng-Tao Wang Fangli Liu |
author_facet | Milan Kornjača Rhine Samajdar Tommaso Macrì Nathan Gemelke Sheng-Tao Wang Fangli Liu |
author_sort | Milan Kornjača |
collection | DOAJ |
description | Abstract Quantum spin liquids are elusive but paradigmatic examples of strongly correlated quantum states that are characterized by long-range quantum entanglement. Recently, signatures of a gapped topological $${{\mathbb{Z}}}_{2}$$ Z 2 spin liquid have been observed in a system of Rydberg atoms; however, the full capability of these platforms to realize quantum spin liquids extends far beyond this state alone. Here, we propose the realization of a different class of spin liquids in a honeycomb array of Rydberg atoms. Exploring the system’s quantum phase diagram using density-matrix renormalization group and exact diagonalization calculations, we identify several density-wave-ordered phases and a trimer spin liquid ground state with an emergent U(1) × U(1) local symmetry. This liquid state originates from superpositions of classical trimer configurations on the dual triangular lattice in the regime where third-nearest-neighbor atoms lie within the Rydberg blockade radius. Finally, we discuss the conditions to enhance the preparation fidelity of this state by a general Rydberg-blockade-based projection mechanism, test the robustness of the trimer spin liquid phase in a range of realistic parameters, and outline methods for its experimental detection. |
first_indexed | 2024-03-08T22:38:51Z |
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id | doaj.art-dffbb4bae68a4aceadbcf880134ae905 |
institution | Directory Open Access Journal |
issn | 2399-3650 |
language | English |
last_indexed | 2024-03-08T22:38:51Z |
publishDate | 2023-12-01 |
publisher | Nature Portfolio |
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series | Communications Physics |
spelling | doaj.art-dffbb4bae68a4aceadbcf880134ae9052023-12-17T12:19:58ZengNature PortfolioCommunications Physics2399-36502023-12-016111010.1038/s42005-023-01470-zTrimer quantum spin liquid in a honeycomb array of Rydberg atomsMilan Kornjača0Rhine Samajdar1Tommaso Macrì2Nathan Gemelke3Sheng-Tao Wang4Fangli Liu5QuEra Computing Inc.Department of Physics, Princeton UniversityQuEra Computing Inc.QuEra Computing Inc.QuEra Computing Inc.QuEra Computing Inc.Abstract Quantum spin liquids are elusive but paradigmatic examples of strongly correlated quantum states that are characterized by long-range quantum entanglement. Recently, signatures of a gapped topological $${{\mathbb{Z}}}_{2}$$ Z 2 spin liquid have been observed in a system of Rydberg atoms; however, the full capability of these platforms to realize quantum spin liquids extends far beyond this state alone. Here, we propose the realization of a different class of spin liquids in a honeycomb array of Rydberg atoms. Exploring the system’s quantum phase diagram using density-matrix renormalization group and exact diagonalization calculations, we identify several density-wave-ordered phases and a trimer spin liquid ground state with an emergent U(1) × U(1) local symmetry. This liquid state originates from superpositions of classical trimer configurations on the dual triangular lattice in the regime where third-nearest-neighbor atoms lie within the Rydberg blockade radius. Finally, we discuss the conditions to enhance the preparation fidelity of this state by a general Rydberg-blockade-based projection mechanism, test the robustness of the trimer spin liquid phase in a range of realistic parameters, and outline methods for its experimental detection.https://doi.org/10.1038/s42005-023-01470-z |
spellingShingle | Milan Kornjača Rhine Samajdar Tommaso Macrì Nathan Gemelke Sheng-Tao Wang Fangli Liu Trimer quantum spin liquid in a honeycomb array of Rydberg atoms Communications Physics |
title | Trimer quantum spin liquid in a honeycomb array of Rydberg atoms |
title_full | Trimer quantum spin liquid in a honeycomb array of Rydberg atoms |
title_fullStr | Trimer quantum spin liquid in a honeycomb array of Rydberg atoms |
title_full_unstemmed | Trimer quantum spin liquid in a honeycomb array of Rydberg atoms |
title_short | Trimer quantum spin liquid in a honeycomb array of Rydberg atoms |
title_sort | trimer quantum spin liquid in a honeycomb array of rydberg atoms |
url | https://doi.org/10.1038/s42005-023-01470-z |
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