Quantum information reclaiming after amplitude damping

Abstract

We investigate the quantum information reclaim from the environment after amplitude damping has occurred. In particular we address the question of optimal measurement on the environment to perform the best possible correction on two and three dimensional quantum systems. Depending on the dimension we show that the entanglement fidelity (the measure quantifying the correction performance) is or is not the same for all possible measurements and uncover the optimal measurement leading to the maximum entanglement fidelity.

References in corpus (3)

• Entanglement of assistance and multipartite state distillation
• Bayesian feedback versus Markovian feedback in a two-level atom
• Inverting quantum decoherence by classical feedback from the environment

Cited by in corpus (9)

• Environment-Assisted Quantum State Restoration Via Weak Measurement
• Restoration of Quantum State in Dephasing Channel
• Quantum Channel Capacities with Passive Environment Assistance
• Optimal feedback control of two-qubit entanglement in dissipative environments
• Recovering quantum information through partial access to the environment
• Discriminating qubit amplitude damping channels
• Capacities of Gaussian Quantum Channels with Passive Environment Assistance
• Adversarial vs cooperative quantum estimation
• On the effectiveness of Bayesian discrete feedback for quantum information reclaiming