Quantum energy teleportation in phase space quantum mechanics

TL;DR

This paper explores quantum energy teleportation using phase space methods, linking energy transfer to entanglement and analyzing coherence and entanglement consumption with entropy measures.

Contribution

It introduces a phase space approach to quantum energy teleportation, connecting energy transfer to entanglement and coherence via Wigner and Husimi functions.

Findings

Teleported energy proportional to initial entanglement

Husimi Q-function used to measure Wehrl entropy

Coherence and entanglement consumption quantified

Abstract

In this paper, we investigate the Quantum Energy Teleportation protocol within the phase space formulation of quantum mechanics. By employing the Wigner quasi-probability distribution and the star product, we show that the teleported energy is proportional to the amount of entanglement present in the initial ground state. Further, we introduce the Husimi $Q$-function on a Bloch coherent state in order to determine the Wehrl entropy of the system. Finally, the Wherl entropy enable us to compute the consumption of coherence and entanglement throughout the protocol.