Entangling gates from cabling of knots

Abstract While there is a general consensus about the structure of one qubit operations in topological quantum computer, two qubits are as usual a more difficult and complex story of different attempts with varying approaches, problems and effectiveness. In this paper we discuss how to construct an...

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Main Authors: Sergey Mironov, Andrey Morozov
Format: Article
Language:English
Published: SpringerOpen 2025-07-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-025-14492-4
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author Sergey Mironov
Andrey Morozov
author_facet Sergey Mironov
Andrey Morozov
author_sort Sergey Mironov
collection DOAJ
description Abstract While there is a general consensus about the structure of one qubit operations in topological quantum computer, two qubits are as usual a more difficult and complex story of different attempts with varying approaches, problems and effectiveness. In this paper we discuss how to construct an efficient realization of a two qubit gate in topological quantum computer, by using principle of cabling from the knot theory. This allows one to construct a braiding of cables dependent on the parameters of the theory where there is a low probability of moving out of computational space (high fidelity of operation) with a non-trivial entangling two-qubit operation. We also present some examples of these operations for different parameters of the theory.
format Article
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institution Kabale University
issn 1434-6052
language English
publishDate 2025-07-01
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series European Physical Journal C: Particles and Fields
spelling doaj-art-189b2847eb4c4d04a99b0792dcb77ba82025-08-20T03:43:30ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-07-018571710.1140/epjc/s10052-025-14492-4Entangling gates from cabling of knotsSergey Mironov0Andrey Morozov1INR RASIITP RASAbstract While there is a general consensus about the structure of one qubit operations in topological quantum computer, two qubits are as usual a more difficult and complex story of different attempts with varying approaches, problems and effectiveness. In this paper we discuss how to construct an efficient realization of a two qubit gate in topological quantum computer, by using principle of cabling from the knot theory. This allows one to construct a braiding of cables dependent on the parameters of the theory where there is a low probability of moving out of computational space (high fidelity of operation) with a non-trivial entangling two-qubit operation. We also present some examples of these operations for different parameters of the theory.https://doi.org/10.1140/epjc/s10052-025-14492-4
spellingShingle Sergey Mironov
Andrey Morozov
Entangling gates from cabling of knots
European Physical Journal C: Particles and Fields
title Entangling gates from cabling of knots
title_full Entangling gates from cabling of knots
title_fullStr Entangling gates from cabling of knots
title_full_unstemmed Entangling gates from cabling of knots
title_short Entangling gates from cabling of knots
title_sort entangling gates from cabling of knots
url https://doi.org/10.1140/epjc/s10052-025-14492-4
work_keys_str_mv AT sergeymironov entanglinggatesfromcablingofknots
AT andreymorozov entanglinggatesfromcablingofknots