Hybrid Toffoli gate on photons and quantum spins
Quantum computation offers potential advantages in solving a number of interesting and difficult problems. Several controlled logic gates, the elemental building blocks of quantum computer, have been realized with various physical systems. A general technique was recently proposed that significantly...
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Nature Publishing Group
2015
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4644947/ |
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pubmed-46449472015-11-20 Hybrid Toffoli gate on photons and quantum spins Luo, Ming-Xing Ma, Song-Ya Chen, Xiu-Bo Wang, Xiaojun Article Quantum computation offers potential advantages in solving a number of interesting and difficult problems. Several controlled logic gates, the elemental building blocks of quantum computer, have been realized with various physical systems. A general technique was recently proposed that significantly reduces the realization complexity of multiple-control logic gates by harnessing multi-level information carriers. We present implementations of a key quantum circuit: the three-qubit Toffoli gate. By exploring the optical selection rules of one-sided optical microcavities, a Toffoli gate may be realized on all combinations of photon and quantum spins in the QD-cavity. The three general controlled-NOT gates are involved using an auxiliary photon with two degrees of freedom. Our results show that photons and quantum spins may be used alternatively in quantum information processing. Nature Publishing Group 2015-11-16 /pmc/articles/PMC4644947/ /pubmed/26568078 http://dx.doi.org/10.1038/srep16716 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 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 to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/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 Ma, Song-Ya Chen, Xiu-Bo Wang, Xiaojun |
| spellingShingle |
Luo, Ming-Xing Ma, Song-Ya Chen, Xiu-Bo Wang, Xiaojun Hybrid Toffoli gate on photons and quantum spins |
| author_facet |
Luo, Ming-Xing Ma, Song-Ya Chen, Xiu-Bo Wang, Xiaojun |
| author_sort |
Luo, Ming-Xing |
| title |
Hybrid Toffoli gate on photons and quantum spins |
| title_short |
Hybrid Toffoli gate on photons and quantum spins |
| title_full |
Hybrid Toffoli gate on photons and quantum spins |
| title_fullStr |
Hybrid Toffoli gate on photons and quantum spins |
| title_full_unstemmed |
Hybrid Toffoli gate on photons and quantum spins |
| title_sort |
hybrid toffoli gate on photons and quantum spins |
| description |
Quantum computation offers potential advantages in solving a number of interesting and difficult problems. Several controlled logic gates, the elemental building blocks of quantum computer, have been realized with various physical systems. A general technique was recently proposed that significantly reduces the realization complexity of multiple-control logic gates by harnessing multi-level information carriers. We present implementations of a key quantum circuit: the three-qubit Toffoli gate. By exploring the optical selection rules of one-sided optical microcavities, a Toffoli gate may be realized on all combinations of photon and quantum spins in the QD-cavity. The three general controlled-NOT gates are involved using an auxiliary photon with two degrees of freedom. Our results show that photons and quantum spins may be used alternatively in quantum information processing. |
| publisher |
Nature Publishing Group |
| publishDate |
2015 |
| url |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4644947/ |
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1613501212616818688 |