Unraveling PXP Many-Body Scars through Floquet Dynamics
Abstract
Quantum scars are special eigenstates of many-body systems that evade thermalization. They were first discovered in the PXP model, a well-known effective description of Rydberg atom arrays. Despite significant theoretical efforts, the fundamental origin of PXP scars remains elusive. By investigating the discretized dynamics of the PXP model as a function of the Trotter step $\tau$, we uncover a remarkable correspondence between the zero- and two-particle eigenstates of the integrable Floquet-PXP cellular automaton at $\tau=\pi/2$ and the PXP many-body scars of the time-continuous limit. Specifically, we demonstrate that PXP scars are adiabatically connected to the eigenstates of the $\tau=\pi/2$ Floquet operator. Building on this result, we propose a protocol for achieving high-fidelity preparation of PXP scars in Rydberg atom experiments.
- Publication:
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arXiv e-prints
- Pub Date:
- December 2023
- DOI:
- 10.48550/arXiv.2312.16288
- arXiv:
- arXiv:2312.16288
- Bibcode:
- 2023arXiv231216288G
- Keywords:
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- Condensed Matter - Statistical Mechanics;
- Condensed Matter - Quantum Gases;
- Condensed Matter - Strongly Correlated Electrons;
- Quantum Physics
- E-Print:
- 6+12 pages, 4+7 figures