Heat flow reversal in a trapped-ion simulator

Abstract

We propose a trapped-ion platform to simulate a reconfigurable spin-spin Hamiltonian related to quantum thermodynamic processes. Starting from an experimental model describing two trapped-ions under slightly off-resonant first sideband driving with individually controlled driving phases, we follow an operational quantum optics approach to show that it produces an effective model appearing in recent quantum thermodynamics proposals. We show that projection into the vibrational ground state manifold allows full analytic treatment. As a practical example, we take experimental data from a ${}^{187}$Yb${}^{+}$ trap and numerically simulate the reversal of heat flow between two thermal spins controlled by their quantum correlations.

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