Parallel Photonic Quantum Computation Assisted by Quantum Dots in One-Side Optical Microcavities

Universal quantum logic gates are important elements for a quantum computer. In contrast to previous constructions on one degree of freedom (DOF) of quantum systems, we investigate the possibility of parallel quantum computations dependent on two DOFs of photon systems. We construct deterministic hy...

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Main Authors:	Luo, Ming-Xing, Wang, Xiaojun
Format:	Online
Language:	English
Published:	Nature Publishing Group 2014
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4101523/

id	pubmed-4101523
recordtype	oai_dc
spelling	pubmed-41015232014-07-17 Parallel Photonic Quantum Computation Assisted by Quantum Dots in One-Side Optical Microcavities Luo, Ming-Xing Wang, Xiaojun Article Universal quantum logic gates are important elements for a quantum computer. In contrast to previous constructions on one degree of freedom (DOF) of quantum systems, we investigate the possibility of parallel quantum computations dependent on two DOFs of photon systems. We construct deterministic hyper-controlled-not (hyper-CNOT) gates operating on the spatial-mode and the polarization DOFs of two-photon or one-photon systems by exploring the giant optical circular birefringence induced by quantum-dot spins in one-sided optical microcavities. These hyper-CNOT gates show that the quantum states of two DOFs can be viewed as independent qubits without requiring auxiliary DOFs in theory. This result can reduce the quantum resources by half for quantum applications with large qubit systems, such as the quantum Shor algorithm. Nature Publishing Group 2014-07-17 /pmc/articles/PMC4101523/ /pubmed/25030424 http://dx.doi.org/10.1038/srep05732 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Luo, Ming-Xing Wang, Xiaojun
spellingShingle	Luo, Ming-Xing Wang, Xiaojun Parallel Photonic Quantum Computation Assisted by Quantum Dots in One-Side Optical Microcavities
author_facet	Luo, Ming-Xing Wang, Xiaojun
author_sort	Luo, Ming-Xing
title	Parallel Photonic Quantum Computation Assisted by Quantum Dots in One-Side Optical Microcavities
title_short	Parallel Photonic Quantum Computation Assisted by Quantum Dots in One-Side Optical Microcavities
title_full	Parallel Photonic Quantum Computation Assisted by Quantum Dots in One-Side Optical Microcavities
title_fullStr	Parallel Photonic Quantum Computation Assisted by Quantum Dots in One-Side Optical Microcavities
title_full_unstemmed	Parallel Photonic Quantum Computation Assisted by Quantum Dots in One-Side Optical Microcavities
title_sort	parallel photonic quantum computation assisted by quantum dots in one-side optical microcavities
description	Universal quantum logic gates are important elements for a quantum computer. In contrast to previous constructions on one degree of freedom (DOF) of quantum systems, we investigate the possibility of parallel quantum computations dependent on two DOFs of photon systems. We construct deterministic hyper-controlled-not (hyper-CNOT) gates operating on the spatial-mode and the polarization DOFs of two-photon or one-photon systems by exploring the giant optical circular birefringence induced by quantum-dot spins in one-sided optical microcavities. These hyper-CNOT gates show that the quantum states of two DOFs can be viewed as independent qubits without requiring auxiliary DOFs in theory. This result can reduce the quantum resources by half for quantum applications with large qubit systems, such as the quantum Shor algorithm.
publisher	Nature Publishing Group
publishDate	2014
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4101523/
_version_	1613115023441264640

Parallel Photonic Quantum Computation Assisted by Quantum Dots in One-Side Optical Microcavities

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