Shortcuts to Adiabaticity for Open Systems in Circuit Quantum Electrodynamics

TL;DR

This paper demonstrates the first experimental shortcuts to adiabaticity in open quantum systems using circuit QED, significantly reducing evolution times and enabling fast control of lossy modes.

Contribution

It introduces the first experimental realization of STA in open quantum systems and develops optimal control protocols for multiple lossy modes.

Findings

Reduced adiabatic evolution time from 800 ns to 100 ns using counterdiabatic driving

Implemented an optimal control protocol for fast, qubit-unconditional equilibrium of multiple lossy modes

Paves the way for accelerated dynamics in open quantum systems with potential interdisciplinary applications

Abstract

Shortcuts to adiabaticity (STA) are powerful quantum control methods, allowing quick evolution into target states of otherwise slow adiabatic dynamics. Such methods have widespread applications in quantum technologies, and various STA protocols have been demonstrated in closed systems. However, realizing STA for open quantum systems has presented a greater challenge, due to complex controls required in existing proposals. Here we present the first experimental demonstration of STA for open quantum systems, using a superconducting circuit QED system consisting of two coupled bosonic oscillators and a transmon qubit. By applying a counterdiabatic driving pulse, we reduce the adiabatic evolution time of a single lossy mode from 800 ns to 100 ns. In addition, we propose and implement an optimal control protocol to achieve fast and qubit-unconditional equilibrium of multiple lossy modes. Our results pave the way for accelerating dynamics of open quantum systems and have potential applications in designing fast open-system protocols of physical and interdisciplinary interest, such as accelerating bioengineering and chemical reaction dynamics.