AI Article Synopsis
- The study investigates hydrodynamic transport properties in quantum dynamics to better understand exotic non-equilibrium phases of matter, focusing on simulating infinite-temperature transport in complex quantum systems.
- By using a controllable superconducting quantum simulator, the researchers successfully prepared Haar-random states and observed diffusive spin transport with ergodic dynamics during the unitary evolution of a ladder-type quantum simulator.
- They also examined the effects of strong disorder and tilted potential on transport properties, discovering signs of anomalous subdiffusion and thermalization breakdown, highlighting a scalable approach for investigating infinite-temperature spin transport.
Article Abstract
Characterizing the nature of hydrodynamical transport properties in quantum dynamics provides valuable insights into the fundamental understanding of exotic non-equilibrium phases of matter. Experimentally simulating infinite-temperature transport on large-scale complex quantum systems is of considerable interest. Here, using a controllable and coherent superconducting quantum simulator, we experimentally realize the analog quantum circuit, which can efficiently prepare the Haar-random states, and probe spin transport at infinite temperature. We observe diffusive spin transport during the unitary evolution of the ladder-type quantum simulator with ergodic dynamics. Moreover, we explore the transport properties of the systems subjected to strong disorder or a tilted potential, revealing signatures of anomalous subdiffusion in accompany with the breakdown of thermalization. Our work demonstrates a scalable method of probing infinite-temperature spin transport on analog quantum simulators, which paves the way to study other intriguing out-of-equilibrium phenomena from the perspective of transport.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11366024 | PMC |
| http://dx.doi.org/10.1038/s41467-024-52082-2 | DOI Listing |
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