Indistinguishability-Enhanced Entanglement Recovery by Spatially Localized Operations and Classical Communication - INSPIRE

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Indistinguishability-Enhanced Entanglement Recovery by Spatially Localized Operations and Classical Communication

2021

13 pages

Published in:

Open Systems & Information Dynamics 28 (2021) 04, 2150020

Published: Jul 1, 2022

e-Print:

2201.13365 [quant-ph]

DOI:

10.1142/S1230161221500207

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Abstract: (WSP)

We extend a procedure exploiting spatial indistinguishability of identical particles to recover the spoiled entanglement between two qubits interacting with Markovian noisy environments. Here, the spatially localized operations and classical communication (sLOCC) operational framework is used to activate the entanglement restoration from the indistinguishable constituents. We consider the realistic scenario where noise acts for the whole duration of the process. Three standard types of noises are considered: a phase damping, a depolarizing, and an amplitude damping channel. Within this general scenario, we find the entanglement to be restored in an amount proportional to the degree of spatial indistinguishability. These results elevate sLOCC to a practical framework for accessing and utilizing quantum state protection within a quantum network of spatially indistinguishable subsystems.

Note:

13 pages, 10 figures. Submitted to a Special Issue in memoriam of Prof. Andrzej Kossakowski

Indistinguishable particles
open quantum systems
entanglement protection
quantum resources
entanglement
noise
qubit
network: quantum

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