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Quantum Information Processing

Improving quantum state transfer efficiency and entanglement distribution in binary tree spin network through incomplete collapsing measurements

  • 01-04-2018
Published in:
Authors
Naghi Behzadi
Bahram Ahansaz
Published in
Quantum Information Processing | Issue 4/2018

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Abstract

We propose a mechanism for quantum state transfer (QST) over a binary tree spin network on the basis of incomplete collapsing measurements. To this aim, we perform initially a weak measurement (WM) on the central qubit of the binary tree network where the state of our concern has been prepared on that qubit. After the time evolution of the whole system, a quantum measurement reversal (QMR) is performed on a chosen target qubit. By taking optimal value for the strength of QMR, it is shown that the QST quality from the sending qubit to any typical target qubit on the binary tree is considerably improved in terms of the WM strength. Also, we show that how high-quality entanglement distribution over the binary tree network is achievable by using this approach.

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previous article Deterministic joint remote preparation of an equatorial hybrid state via high-dimensional Einstein–Podolsky–Rosen pairs: active versus passive receiver
next article Algorithmic complexity of quantum capacity
Title
Improving quantum state transfer efficiency and entanglement distribution in binary tree spin network through incomplete collapsing measurements
Authors
Naghi Behzadi
Bahram Ahansaz
Publication date
01-04-2018
Publisher
Springer US
Published in
Quantum Information Processing / Issue 4/2018
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-018-1860-7
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