Collision model approach to steering of an open driven qubit

Abstract

We investigate quantum steering of an open quantum system by measurements on its environment in the framework of collision models. As an example we consider a coherently driven qubit dissipatively coupled to a bath. We construct local non-adaptive and adaptive as well as nonlocal measurement scenarios specifying explicitly the measured observable on the environment. Our approach shows transparently how the conditional evolution of the open system depends on the type of the measurement scenario and the measured observables. These can then be optimized for steering. The nonlocal measurement scenario leads to maximal violation of the used steering inequality at zero temperature. Further, we investigate the robustness of the constructed scenarios against thermal noise. We find generally that steering becomes harder at higher temperatures. Surprisingly, the system can be steered even when bipartite entanglement between the system and individual subenvironments vanishes.

References in corpus (11)

• Steering, Entanglement, Nonlocality, and the EPR Paradox
• Experimental criteria for steering and the Einstein-Podolsky-Rosen paradox
• Entanglement, EPR-correlations, Bell-nonlocality, and Steering
• Joint measurability of generalized measurements implies classicality
• Collision-model-based approach to non-Markovian quantum dynamics
• Demonstration of MultiSetting One-Way Einstein-Podolsky-Rosen Steering in Two-Qubit Systems
• Composite quantum collision models
• Simulation of indivisible qubit channels in collision models
• Divisibility of quantum dynamical maps and collision models
• Non-Markovianity, coherence and system-environment correlations in a long-range collision model
• How many bits does it take to track an open quantum system?

Cited by in corpus (12)

• Quantum collision models: open system dynamics from repeated interactions
• System-environment correlations and Markovian embedding of quantum non-Markovian dynamics
• Quantum synchronization in a collision model
• Steering heat engines: a truly quantum Maxwell demon
• Quantum non-stationary phenomena of spin systems in collision models
• Quantum memory enhanced dissipative entanglement creation in non-equilibrium steady states
• Local disclosure of quantum memory in non-Markovian dynamics
• Dissipation induced information scrambling in a collision model
• Effect of inter-system coupling on heat transport in a microscopic collision model
• Quantum Steering on IBMQ
• Quantum synchronization in an all-optical stroboscopic quantum simulator
• Transient Dynamics and Homogenization in Incoherent Collision Models