Optimizing for an arbitrary Schr\"odinger cat state. II. Application in the presence of dissipation

TL;DR

This paper extends a quantum control optimization method to open systems, demonstrating its effectiveness in preparing entangled cat states under dissipation in a Jaynes-Cummings model, highlighting practical quantum technology applications.

Contribution

It adapts the optimization functional for open quantum systems and shows its application in preparing entangled cat states with dissipation effects.

Findings

Control strategy changes under strong dissipation

Successful preparation of entangled cat states with decay

Demonstrates versatility of quantum optimal control

Abstract

We extend here the optimization functional targeting arbitrary cat states, derived in the companion paper, to open quantum system dynamics. Applying it to a Jaynes-Cummings model with decay on the oscillator, we find, for strong dissipation and large cat radii, a change in the control strategy for preparing an entangled cat state. Our results illustrate the versatility of the quantum optimal control toolbox for practical applications in the quantum technologies.