Universal Signature from Integrability to Chaos in Dissipative Open Quantum Systems
Universal Signature from Integrability to Chaos in Dissipative Open Quantum Systems
We study the transition between integrable and chaotic behavior in dissipative open quantum systems, exemplified by a boundary driven quantum spin chain. The repulsion between the complex eigenvalues of the corresponding Liouville operator in radial distance $s$ is used as a universal measure. The corresponding level spacing distribution is well …