학술논문

Chaos and magic in the dissipative quantum kicked top
Document Type
Working Paper
Source
Subject
Quantum Physics
Language
Abstract
We consider an infinite-range interacting quantum spin-1/2 model, undergoing periodic kicking and dissipatively coupled with an environment. In the thermodynamic limit, it is described by classical mean-field equations that can show regular and chaotic regimes. At finite size, we describe the system dynamics using stochastic quantum trajectories. We find that the asymptotic nonstabilizerness (alias the magic, a measure of quantum complexity), averaged over trajectories, mirrors the classical chaotic behavior, while the entanglement entropy has no relation with chaos in the thermodynamic limit.
Comment: 15 pages, 15 figures