Passivity breaking of a local vacuum state in a quantum Hall system

TL;DR

This paper proposes an experimental approach to extract zero-point energy from a local vacuum in a quantum Hall system using LOCC, demonstrating quantum feedback that breaks vacuum passivity and enabling energy teleportation without physical energy transfer.

Contribution

It introduces a method to extract energy from a local vacuum state in a quantum Hall system through LOCC, showcasing a novel way to break vacuum passivity.

Findings

Estimated energy gain with realistic parameters

Demonstration of vacuum passivity breaking

Potential for quantum energy teleportation

Abstract

We propose an experimental method for extracting the zero-point energy from a local vacuum state by performing local operations and classical communication (LOCC). We model a quantum Hall edge channel as a quantum entangled many-body channel and the zero-point fluctuation in the charge density of the channel as the vacuum state. We estimate the order of the energy gain using reasonable experimental parameters. Such a quantum feedback system breaks the passivity of a local vacuum state. It can be used to demonstrate Maxwell's demon or quantum energy teleportation in which no physical entity transports energy.