Information backflow as a resource for entanglement
arXiv:1903.07489 · doi:10.1103/PhysRevA.99.062327
Abstract
The issue of whether non-Markovianity (NM) could be considered as a resource in quantum information has been a subject of intense debate for the last years. Recently, a simple mechanism was proposed in which one of the main features of NM, the backflow of information from the environment to the system, represents a fundamental and quantifiable resource for generating entanglement within an open quantum system coupled to a finite and small environment [N. Mirkin, P. Poggi and D. Wisniacki, Phys. Rev. A, 99(2), 020301(R)]. In this work, we extend the universality of this resource mechanism by studying a completely different and more general scheme where the system is coupled to an infinite structured reservoir. Under both setups, we show that the degree of NM univocally determines the optimal degree of entanglement reachable by controlling the open system. This result reveals the universality of a quantitative relation between entanglement and NM by using quantum optimal control.
9 pages, 4 figures
References in corpus (15)
- Quantum Non-Markovianity: Characterization, Quantification and Detection
- Non-Markovian effects on the dynamics of entanglement
- Protecting entanglement via the quantum Zeno effect
- Sudden death and sudden birth of entanglement in common structured reservoirs
- Non-Markovian dynamics in a spin star system: Exact solution and approximation techniques
- Modeling and Control of Quantum Systems: An Introduction
- Optimal state pairs for non-Markovian quantum dynamics
- Experimental noise filtering by quantum control
- Environment assisted speed-up of the field evolution in cavity QED
- Quantum Speed Limit Bounds in an Open Quantum Evolution
- All-optical non-Markovian stroboscopic quantum simulator
- Non-Markov Enhancement of Maximum Power for Quantum Thermal Machines
- Non-Markovianity-assisted high-fidelity Deutsch-Jozsa algorithm in diamond
- Experimental bath engineering for quantitative studies of quantum control
- Time-optimal purification of a qubit in contact with a structured environment