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Isotopic Effect in Double Proton Transfer Process of Porphycene Investigated by Enhanced QM/MM Method

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Observing the Quantum Mpemba Effect in Quantum Simulations.

Lata Kh Joshi^1,2,3, Johannes Franke^1,4, Aniket Rath⁵

¹Institute for Quantum Optics and Quantum Information, Austrian Academy of Sciences, Technikerstraße 21a, 6020 Innsbruck, Austria.

Physical Review Letters

|July 23, 2024

Summary

This summary is machine-generated.

Scientists observed the quantum Mpemba effect in a trapped-ion quantum simulator. This surprising phenomenon shows systems recovering symmetry faster when further from equilibrium, challenging conventional physics understanding.

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Area of Science:

Quantum physics
Nonequilibrium thermodynamics
Many-body systems

Background:

Nonequilibrium quantum systems exhibit unusual behaviors.
The quantum Mpemba effect is a puzzling phenomenon where systems recover symmetry faster when further from equilibrium.

Purpose of the Study:

To experimentally investigate the quantum Mpemba effect.
To provide the first experimental evidence in a trapped-ion quantum simulator.

Main Methods:

Utilizing a trapped-ion quantum simulator.
Monitoring symmetry breaking and restoration via entanglement asymmetry.
Employing randomized measurements and classical shadows for data processing.
Measuring Frobenius distance to a theoretical thermal state.

Main Results:

First experimental demonstration of the quantum Mpemba effect in a trapped-ion system.
Observed faster symmetry restoration when farther from the symmetric state.
Confirmed subsystem thermalization through state distance measurements.

Conclusions:

The quantum Mpemba effect is experimentally verified in a controllable quantum system.
Findings offer insights into the dynamics of quantum systems far from equilibrium.
Demonstrates the utility of trapped-ion simulators for studying fundamental quantum phenomena.