Persistent non-Gaussian correlations in out-of-equilibrium Rydberg atom arrays
Fuente:
arXiv
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916260249337856 |
|---|---|
| author | Deger, Aydin Daniel, Aiden Papić, Zlatko Pachos, Jiannis K. |
| author_facet | Deger, Aydin Daniel, Aiden Papić, Zlatko Pachos, Jiannis K. |
| contents | Gaussian correlations emerge in a large class of many-body quantum systems quenched out of equilibrium, as demonstrated in recent experiments on coupled one-dimensional superfluids [Schweigler et al., Nature Physics 17, 559 (2021)]. Here, we present a mechanism by which an initial state of a Rydberg atom array can retain persistent non-Gaussian correlations following a global quench. This mechanism is based on an effective kinetic blockade rooted in the ground state symmetry of the system, which prevents thermalizing dynamics under the quench Hamiltonian. We propose how to observe this effect with Rydberg atom experiments and we demonstrate its resilience against several types of experimental errors. These long-lived non-Gaussian states may have practical applications as quantum memories or stable resources for quantum-information protocols due to the protected non-Gaussianity away from equilibrium. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_12210 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Persistent non-Gaussian correlations in out-of-equilibrium Rydberg atom arrays Deger, Aydin Daniel, Aiden Papić, Zlatko Pachos, Jiannis K. Quantum Physics Quantum Gases Statistical Mechanics Gaussian correlations emerge in a large class of many-body quantum systems quenched out of equilibrium, as demonstrated in recent experiments on coupled one-dimensional superfluids [Schweigler et al., Nature Physics 17, 559 (2021)]. Here, we present a mechanism by which an initial state of a Rydberg atom array can retain persistent non-Gaussian correlations following a global quench. This mechanism is based on an effective kinetic blockade rooted in the ground state symmetry of the system, which prevents thermalizing dynamics under the quench Hamiltonian. We propose how to observe this effect with Rydberg atom experiments and we demonstrate its resilience against several types of experimental errors. These long-lived non-Gaussian states may have practical applications as quantum memories or stable resources for quantum-information protocols due to the protected non-Gaussianity away from equilibrium. |
| title | Persistent non-Gaussian correlations in out-of-equilibrium Rydberg atom arrays |
| topic | Quantum Physics Quantum Gases Statistical Mechanics |
| url | https://arxiv.org/abs/2306.12210 |