Cooling the Sachdev-Ye-Kitaev model using thermofield double states

Fuente: arXiv
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Autori principali: Schuster, Thomas, Kobrin, Bryce, Su, Vincent P., Marrochio, Hugo, Yao, Norman Y.
Natura: Preprint
Pubblicazione: 2025
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author Schuster, Thomas
Kobrin, Bryce
Su, Vincent P.
Marrochio, Hugo
Yao, Norman Y.
author_facet Schuster, Thomas
Kobrin, Bryce
Su, Vincent P.
Marrochio, Hugo
Yao, Norman Y.
contents We analyze a simple and efficient experimental protocol to cool the Sachdev-Ye-Kitaev (SYK) model to low temperatures. The protocol utilizes local couplings between two copies of an SYK model to create a gapped adiabatic path, between a high temperature product state and a low temperature thermofield double state. By smoothly varying the coupling strength between these two limits, one efficiently cools the SYK model. We support these predictions-and demonstrate fast cooling to the low-temperature gravitational regime-via exact numerical solutions to the large-N equations of motion that govern the ground state and dynamical properties of the coupled system. Finally, we present a theoretical framework based upon eigenstate thermalization that provides a microscopic explanation for the efficacy of the cooling protocol; intriguingly, this suggests that the protocol may be applicable for cooling strongly-interacting quantum Hamiltonians more broadly.
format Preprint
id arxiv_https___arxiv_org_abs_2511_09620
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Cooling the Sachdev-Ye-Kitaev model using thermofield double states
Schuster, Thomas
Kobrin, Bryce
Su, Vincent P.
Marrochio, Hugo
Yao, Norman Y.
Quantum Physics
Quantum Gases
Statistical Mechanics
Strongly Correlated Electrons
High Energy Physics - Theory
We analyze a simple and efficient experimental protocol to cool the Sachdev-Ye-Kitaev (SYK) model to low temperatures. The protocol utilizes local couplings between two copies of an SYK model to create a gapped adiabatic path, between a high temperature product state and a low temperature thermofield double state. By smoothly varying the coupling strength between these two limits, one efficiently cools the SYK model. We support these predictions-and demonstrate fast cooling to the low-temperature gravitational regime-via exact numerical solutions to the large-N equations of motion that govern the ground state and dynamical properties of the coupled system. Finally, we present a theoretical framework based upon eigenstate thermalization that provides a microscopic explanation for the efficacy of the cooling protocol; intriguingly, this suggests that the protocol may be applicable for cooling strongly-interacting quantum Hamiltonians more broadly.
title Cooling the Sachdev-Ye-Kitaev model using thermofield double states
topic Quantum Physics
Quantum Gases
Statistical Mechanics
Strongly Correlated Electrons
High Energy Physics - Theory
url https://arxiv.org/abs/2511.09620