Full Thermalization of a Photonic Qubit

TL;DR

This paper demonstrates the full thermalization of a photonic qubit using a generalized amplitude damping channel, effectively creating a controllable thermal bath for quantum systems.

Contribution

It introduces a photonic implementation of the GAD channel for infinite interaction time, enabling controlled thermalization of qubits.

Findings

Successful realization of full thermalization of a photonic qubit.

The quantum channel acts as a thermal bath with adjustable temperature.

Provides a new method for controlled qubit-environment interactions.

Abstract

The generalized amplitude damping (GAD) quantum channel implements the interaction between a qubit and an environment with arbitrary temperature and arbitrary interaction time. Here, we implement a photonic version of the GAD for the case of infinite interaction time (full thermalization). We also show that this quantum channel works as a thermal bath with controlled temperature.