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Linear optical deterministic and reconfigurable SWAP gate

Bozkurt, Alkım B. and Kocaman, Serdar (2021) Linear optical deterministic and reconfigurable SWAP gate. Quantum Information Processing, 20 (9). Art. No. 299. ISSN 1570-0755. doi:10.1007/s11128-021-03205-x.

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We propose a deterministic SWAP gate for dual-rail-encoded single photon qubits. The gate is constructed from waveguide crossings, Mach–Zehnder interferometers and phase shifters which provide the gate reconfigurability. Through manipulating the phase of the phase shifters, we can apply either the SWAP or identity gates. As an essential element of nearest neighbor qubit networks, the SWAP gate has a simple structure and presents minimal overhead. Providing an efficient solution to the geometric restrictions of on-chip dual-rail qubit circuits, our design may be utilized in applying large scale arbitrary unitary transformations.

Item Type:Article
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Bozkurt, Alkım B.0000-0003-0633-8902
Additional Information:© The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2021. Received 11 May 2020; Accepted 08 August 2021; Published 07 September 2021.
Subject Keywords:Linear optical quantum computation; SWAP gate; Dual-rail encoded single-photon qubits; Photonic integrated circuits
Issue or Number:9
Record Number:CaltechAUTHORS:20211001-221225319
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Official Citation:Bozkurt, A.B., Kocaman, S. Linear optical deterministic and reconfigurable SWAP gate. Quantum Inf Process 20, 299 (2021).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:111167
Deposited By: Tony Diaz
Deposited On:04 Oct 2021 17:29
Last Modified:04 Oct 2021 17:29

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