Quantum Walks with Dynamical Control: Graph Engineering, Initial State Preparation and State Transfer
Abstract
Quantum walks are a well-established model for the study of coherent transport phenomena and provide a universal platform in quantum information theory. Dynamically influencing the walker's evolution gives a high degree of flexibility for studying various applications. Here, we present time-multiplexed finite quantum walks of variable size, the preparation of non-localized input states and their dynamical evolution. As a further application, we implement a state transfer scheme for an arbitrary input state to two different output modes. The presented experiments rely on the full dynamical control of a time-multiplexed quantum walk, which includes adjustable coin operation as well as the possibility to flexibly configure the underlying graph structures.
Cite
@article{arxiv.1601.08204,
title = {Quantum Walks with Dynamical Control: Graph Engineering, Initial State Preparation and State Transfer},
author = {Thomas Nitsche and Fabian Elster and Jaroslav Novotný and Aurél Gábris and Igor Jex and Sonja Barkhofen and Christine Silberhorn},
journal= {arXiv preprint arXiv:1601.08204},
year = {2016}
}
Comments
Updated the article to the version eventually published