Non-equilibrium quantum domain reconfiguration dynamics in a two-dimensional electronic crystal and a quantum annealer

Jaka Vodeb (), Michele Diego, Yevhenii Vaskivskyi, Leonard Logaric, Yaroslav Gerasimenko, Viktor Kabanov, Benjamin Lipovsek, Marko Topic and Dragan Mihailovic ()
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Jaka Vodeb: Jozef Stefan Institute
Michele Diego: Jozef Stefan Institute
Yevhenii Vaskivskyi: Jozef Stefan Institute
Leonard Logaric: Jozef Stefan Institute
Yaroslav Gerasimenko: Jozef Stefan Institute
Viktor Kabanov: Jozef Stefan Institute
Benjamin Lipovsek: University of Ljubljana
Marko Topic: University of Ljubljana
Dragan Mihailovic: Jozef Stefan Institute

Nature Communications, 2024, vol. 15, issue 1, 1-7

Abstract: Abstract Relaxation dynamics of complex many-body quantum systems trapped into metastable states is a very active field of research from both the theoretical and experimental point of view with implications in a wide array of topics from macroscopic quantum tunnelling and nucleosynthesis to non-equilibrium superconductivity and energy-efficient memory devices. In this work, we investigate quantum domain reconfiguration dynamics in the electronic superlattice of a quantum material using time-resolved scanning tunneling microscopy and unveil a crossover from temperature to noisy quantum fluctuation dominated dynamics. The process is modeled using a programmable superconducting quantum annealer in which qubit interconnections correspond directly to the microscopic interactions between electrons in the quantum material. Crucially, the dynamics of both the experiment and quantum simulation is driven by spectrally similar pink noise. We find that the simulations reproduce the emergent time evolution and temperature dependence of the experimentally observed electronic domain dynamics.

Date: 2024
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DOI: 10.1038/s41467-024-49179-z

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