AI Article Synopsis
- The study examines the dynamics of a many-body spin-boson model influenced by disorder, using the discrete truncated Wigner approximation relevant to quantum experiments.
- The research highlights how varying disorder strength and photon frequency affects the behavior of spin observables, potentially leading to new dynamics that are either logarithmic or algebraically slow in their relaxation.
- The findings suggest that even in the presence of dynamic photons, disordered quantum systems can exhibit complex nonequilibrium behaviors, which may have significant implications for future applications in quantum information science.
Article Abstract
We study the far-from-equilibrium dynamical regimes of a many-body spin-boson model with disordered couplings relevant for cavity QED and trapped ion experiments, using the discrete truncated Wigner approximation. We focus on the dynamics of spin observables upon varying the disorder strength and the frequency of the photons, finding that the latter can considerably alter the structure of the system's dynamical responses. When the photons evolve at a similar rate as the spins, they can induce qualitatively distinct frustrated dynamics characterized by either logarithmic or algebraically slow relaxation. The latter illustrates resilience of glassylike dynamics in the presence of active photonic degrees of freedom, suggesting that disordered quantum many-body systems with resonant photons or phonons can display a rich diagram of nonequilibrium responses, with near future applications for quantum information science.
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| http://dx.doi.org/10.1103/PhysRevLett.126.133603 | DOI Listing |
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