Efficient fusion of photonic W-states with nonunitary partial-swap gates

Efficient fusion of photonic W-states with nonunitary partial-swap gates

We introduce a nonunitary partial-swap gate for fusing arbitrary small-sized photonic W-states into a large-scale entangled network of W-state efficiently without ancillary photons. A partial-swap gate is designed in an optical architecture based on linear optics elements. By introducing auxiliary d...

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Main Authors: Wei, Hai-Rui, Liu, Wen-Qiang, Kwek, Leong-Chuan
Other Authors: Majulab @ NTU
Format: Article
Language:English
Published: 2021
Subjects:
Science::Physics
W-state Fusion
Multipartite Entanglement
Online Access:https://hdl.handle.net/10356/146331
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1463312021-02-13T20:15:28Z Efficient fusion of photonic W-states with nonunitary partial-swap gates Wei, Hai-Rui Liu, Wen-Qiang Kwek, Leong-Chuan Majulab @ NTU Institute of Advanced Studies Science::Physics W-state Fusion Multipartite Entanglement We introduce a nonunitary partial-swap gate for fusing arbitrary small-sized photonic W-states into a large-scale entangled network of W-state efficiently without ancillary photons. A partial-swap gate is designed in an optical architecture based on linear optics elements. By introducing auxiliary degree of freedom, this gate provides a higher success probability with less cost. Our implementation can create a larger target state with a simpler set-up than previous proposals for W-state fusion. Also all 'garbage' states are recyclable, i.e., there is no complete failure output in our scheme in principle. Ministry of Education (MOE) National Research Foundation (NRF) Published version The work was supported by the National Natural Science Foundation of China under Grant No. 11604012, and the Fundamental Research Funds for the Central Universities under Grant Nos. FRF-BR-17-004B and 230201506500024, and a Grant from the China Scholarship Council. KLC is supported by the Ministry of Education and the National Reserach Foundation Singapore. 2021-02-09T07:39:42Z 2021-02-09T07:39:42Z 2020 Journal Article Wei, H.-R., Liu, W.-Q., & Kwek, L.-C. (2020). Efficient fusion of photonic W-states with nonunitary partial-swap gates. New Journal of Physics, 22(9), 093051-. doi:10.1088/1367-2630/abb279 1367-2630 https://hdl.handle.net/10356/146331 10.1088/1367-2630/abb279 2-s2.0-85091670335 9 22 en New Journal of Physics © 2020 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft. This is an open-access article distributed under the terms of the Creative Commons Attribution License. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Physics
W-state Fusion
Multipartite Entanglement
spellingShingle Science::Physics
W-state Fusion
Multipartite Entanglement
Wei, Hai-Rui
Liu, Wen-Qiang
Kwek, Leong-Chuan
Efficient fusion of photonic W-states with nonunitary partial-swap gates
description We introduce a nonunitary partial-swap gate for fusing arbitrary small-sized photonic W-states into a large-scale entangled network of W-state efficiently without ancillary photons. A partial-swap gate is designed in an optical architecture based on linear optics elements. By introducing auxiliary degree of freedom, this gate provides a higher success probability with less cost. Our implementation can create a larger target state with a simpler set-up than previous proposals for W-state fusion. Also all 'garbage' states are recyclable, i.e., there is no complete failure output in our scheme in principle.
author2 Majulab @ NTU
author_facet Majulab @ NTU
Wei, Hai-Rui
Liu, Wen-Qiang
Kwek, Leong-Chuan
format Article
author Wei, Hai-Rui
Liu, Wen-Qiang
Kwek, Leong-Chuan
author_sort Wei, Hai-Rui
title Efficient fusion of photonic W-states with nonunitary partial-swap gates
title_short Efficient fusion of photonic W-states with nonunitary partial-swap gates
title_full Efficient fusion of photonic W-states with nonunitary partial-swap gates
title_fullStr Efficient fusion of photonic W-states with nonunitary partial-swap gates
title_full_unstemmed Efficient fusion of photonic W-states with nonunitary partial-swap gates
title_sort efficient fusion of photonic w-states with nonunitary partial-swap gates
publishDate 2021
url https://hdl.handle.net/10356/146331
_version_ 1692012934736117760

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