Optimal State Transfer and Entanglement Generation in Power-Law Interacting Systems
Abstract
We present an optimal protocol for encoding an unknown qubit state into a multiqubit Greenberger-Horne-Zeilinger-like state and, consequently, transferring quantum information in large systems exhibiting power-law (1/rα) interactions. For all power-law exponents α between d and 2d+1, where d is the dimension of the system, the protocol yields a polynomial speed-up for α>2d and a superpolynomial speed-up for α≤2d, compared to the state of the...
Paper Details
Title
Optimal State Transfer and Entanglement Generation in Power-Law Interacting Systems
Published Date
Jul 21, 2021
Journal
Volume
11
Issue
3
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