Stable many-body resonances in open quantum systems

• URL: http://arxiv.org/abs/2209.07307v2
• Date: Tue, 22 Nov 2022 02:27:12 GMT
• Title: Stable many-body resonances in open quantum systems
• Authors: Ruben Pe\~na, Thi Ha Kyaw, Guillermo Romero
• Abstract summary: We numerically study the dynamics of a small-scale Bose-Hubbard model that can readily be implemented in existing noisy quantum devices. Our findings suggest a possible pathway toward a stable nonequilibrium state of matter, with potential applications of quantum memories for quantum information processing.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Periodically driven quantum many-body systems exhibit novel nonequilibrium states such as prethermalization, discrete time crystals, and many-body localization. Recently, the general mechanism of fractional resonances has been proposed that leads to slowing the many-body dynamics in systems with both $U(1)$ and parity symmetry. Here, we show that fractional resonance is stable under local noise models. To corroborate our finding, we numerically study the dynamics of a small-scale Bose-Hubbard model that can readily be implemented in existing noisy intermediate-scale quantum (NISQ) devices. Our findings suggest a possible pathway toward a stable nonequilibrium state of matter, with potential applications of quantum memories for quantum information processing.

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