Generating a state t-design by diagonal quantum circuits

We investigate protocols for generating a state t -design by using a fixed separable initial state and a diagonal-unitary t -design in the computational basis, which is a t -design of an ensemble of diagonal unitary matrices with random phases as their eigenvalues. We first show that a diagonal-unit...

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Bibliographic Details
Main Authors: Yoshifumi Nakata, Masato Koashi, Mio Murao
Format: Article
Language:English
Published: IOP Publishing 2014-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/16/5/053043