Non-ergodicity in open quantum systems through quantum feedback
arXiv:1611.03716 · doi:10.1209/0295-5075/130/54002
Abstract
It is well known that quantum feedback can alter the dynamics of open quantum systems dramatically. In this paper, we show that non-ergodicity may be induced through quantum feedback and resultantly create system dynamics that have lasting dependence on initial conditions. To demonstrate this, we consider an optical cavity inside an instantaneous quantum feedback loop, which can be implemented relatively easily in the laboratory. Non-ergodic quantum systems are of interest for applications in quantum information processing, quantum metrology and quantum sensing and could potentially aid the design of thermal machines whose efficiency is not limited by the laws of classical thermodynamics.
arXiv comment7 pages, 4 figures
References in corpus (12)
- Chaos and Quantum Thermalization
- Nonequilibrium dynamics of closed interacting quantum systems
- From Quantum Chaos and Eigenstate Thermalization to Statistical Mechanics and Thermodynamics
- Quantum many-body scars
- Stabilizing Open Quantum Systems by Markovian Reservoir Engineering
- Stabilising entanglement by quantum jump-based feedback
- Systematic construction of scarred many-body dynamics in 1D lattice models
- Engineering steady states using jump-based feedback for multipartite entanglement generation
- Quantum-enhanced metrology with the single-mode coherent states of an optical cavity inside a quantum feedback loop
- Quantum Jump Metrology
- Efficiency bounds for nonequilibrium heat engines
- Novel effective ergodicity breaking phase transition in a driven-dissipative system