A Protocol For Cooling and Controlling Composite Systems by Local Interactions

TL;DR

This paper presents a protocol enabling external cooling and control of a composite quantum system through local interactions, facilitating state transfer and cooling with minimal access.

Contribution

It introduces a novel protocol for controlling and cooling composite quantum systems via local operations, allowing state transfer and system cooling.

Findings

Protocol enables external cooling of composite systems.

Allows arbitrary quantum state transfer between memory and system.

Provides a method for system cooling using local interactions.

Abstract

We discuss an explicit protocol which allows one to externally cool and control a composite system by operating on a small subset of it. The scheme permits to transfer arbitrary and unknown quantum states from a memory on the network ("upload access") as well as the inverse ("download access"). In particular it yields a method for cooling the system.