Recovering quantum information through partial access to the environment

Abstract

We investigate the possibility of correcting errors occurring on a multipartite system through a feedback mechanism that acquires information from partial access to the environment. A partial control scheme of this kind might be useful when dealing with correlated errors. In fact, in such a case, it could be enough to gather local information to decide what kind of global recovery to perform. Then, we apply this scheme to the depolarizing and correlated errors, and quantify its performance by means of the entanglement fidelity.

References in corpus (4)

• Entanglement of assistance and multipartite state distillation
• Inverting quantum decoherence by classical feedback from the environment
• Coding Theorem for a Class of Quantum Channels with Long-Term Memory
• Quantum information reclaiming after amplitude damping

Cited by in corpus (14)

• Environment-Assisted Quantum State Restoration Via Weak Measurement
• Classical and quantum capacities of a fully correlated amplitude damping channel
• Restoration of Quantum State in Dephasing Channel
• Quantum Channel Capacities with Passive Environment Assistance
• Optimal feedback control of two-qubit entanglement in dissipative environments
• Witnessing quantum capacities of correlated channels
• Information transmission over an amplitude damping channel with an arbitrary degree of memory
• Capacities of Gaussian Quantum Channels with Passive Environment Assistance
• Thermal effects on coherence and excitation transfer
• Passive environment-assisted quantum communication with GKP states
• Experimental witnessing of the quantum channel capacity in the presence of correlated noise
• Noise Effects on Entanglement Distribution by Separable State
• Witnessing latent time correlations with a single quantum particle
• Beyond pure state entanglement for atomic ensembles