Complete structural restoring of transferred multi-qubit quantum state

• URL: http://arxiv.org/abs/2104.13762v2
• Date: Thu, 19 Aug 2021 07:14:24 GMT
• Title: Complete structural restoring of transferred multi-qubit quantum state
• Authors: E.B. Fel'dman, A.N. Pechen and A.I. Zenchuk
• Abstract summary: We develop the protocol for structural restoring of multi-quantum coherence matrices of the multi-qubit quantum state transferred from the sender to the receiver along a spin-1/2 chain. We also propose a protocol for constructing such 0-order coherence matrix that can be perfectly transferred in this process.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We develop the protocol for structural restoring of multi-quantum coherence matrices of the multi-qubit quantum state transferred from the sender to the receiver along a spin-1/2 chain. We also propose a protocol for constructing such 0-order coherence matrix that can be perfectly transferred in this process. The restoring protocol is based on the specially constructed unitary transformation of the extended receiver.{This transformation for a given length parameters of the chain is universally optimal in the sense that ones constructed it can be applied to optimally restore any higher-order coherence matrices.

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