Photonic Discrete-time Quantum Walks and Applications
We present a review of photonic implementations of discrete-time quantum walks (DTQW) in the spatial and temporal domains, based on spatial- and time-multiplexing techniques, respectively. Additionally, we propose a detailed novel scheme for photonic DTQW, using transverse spatial modes of single ph...
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doaj-9ccdb521e7964868b3276c118e5d079c2020-11-24T22:53:41ZengMDPI AGEntropy1099-43002018-09-01201073110.3390/e20100731e20100731Photonic Discrete-time Quantum Walks and ApplicationsLeonardo Neves0Graciana Puentes1Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, BrazilDepartamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, ArgentinaWe present a review of photonic implementations of discrete-time quantum walks (DTQW) in the spatial and temporal domains, based on spatial- and time-multiplexing techniques, respectively. Additionally, we propose a detailed novel scheme for photonic DTQW, using transverse spatial modes of single photons and programmable spatial light modulators (SLM) to manipulate them. Unlike all previous mode-multiplexed implementations, this scheme enables simulation of an arbitrary step of the walker, only limited, in principle, by the SLM resolution. We discuss current applications of such photonic DTQW architectures in quantum simulation of topological effects and the use of non-local coin operations based on two-photon hybrid entanglement.http://www.mdpi.com/1099-4300/20/10/731quantum walksspatial-multiplexingtime-multiplexingspatial light modulators |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Leonardo Neves Graciana Puentes |
spellingShingle |
Leonardo Neves Graciana Puentes Photonic Discrete-time Quantum Walks and Applications Entropy quantum walks spatial-multiplexing time-multiplexing spatial light modulators |
author_facet |
Leonardo Neves Graciana Puentes |
author_sort |
Leonardo Neves |
title |
Photonic Discrete-time Quantum Walks and Applications |
title_short |
Photonic Discrete-time Quantum Walks and Applications |
title_full |
Photonic Discrete-time Quantum Walks and Applications |
title_fullStr |
Photonic Discrete-time Quantum Walks and Applications |
title_full_unstemmed |
Photonic Discrete-time Quantum Walks and Applications |
title_sort |
photonic discrete-time quantum walks and applications |
publisher |
MDPI AG |
series |
Entropy |
issn |
1099-4300 |
publishDate |
2018-09-01 |
description |
We present a review of photonic implementations of discrete-time quantum walks (DTQW) in the spatial and temporal domains, based on spatial- and time-multiplexing techniques, respectively. Additionally, we propose a detailed novel scheme for photonic DTQW, using transverse spatial modes of single photons and programmable spatial light modulators (SLM) to manipulate them. Unlike all previous mode-multiplexed implementations, this scheme enables simulation of an arbitrary step of the walker, only limited, in principle, by the SLM resolution. We discuss current applications of such photonic DTQW architectures in quantum simulation of topological effects and the use of non-local coin operations based on two-photon hybrid entanglement. |
topic |
quantum walks spatial-multiplexing time-multiplexing spatial light modulators |
url |
http://www.mdpi.com/1099-4300/20/10/731 |
work_keys_str_mv |
AT leonardoneves photonicdiscretetimequantumwalksandapplications AT gracianapuentes photonicdiscretetimequantumwalksandapplications |
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1725662381325942784 |