A Pair of Coupled Waveguides as a Classical Analogue for a Solid-State Qubit
We have determined conditions when a pair of coupled waveguides, a common element for integrated room-temperature photonics, can act as a qubit based on a system with a double-well potential. Moreover, we have used slow-varying amplitude approximation (SVA) for the “classical” wave equation to study...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/21/8286 |
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| author | Andrey E. Schegolev Nikolay V. Klenov Anna V. Bogatskaya Rustam D. Yusupov Alexander M. Popov |
| author_facet | Andrey E. Schegolev Nikolay V. Klenov Anna V. Bogatskaya Rustam D. Yusupov Alexander M. Popov |
| author_sort | Andrey E. Schegolev |
| collection | DOAJ |
| description | We have determined conditions when a pair of coupled waveguides, a common element for integrated room-temperature photonics, can act as a qubit based on a system with a double-well potential. Moreover, we have used slow-varying amplitude approximation (SVA) for the “classical” wave equation to study the propagation of electromagnetic beams in a couple of dielectric waveguides both analytically and numerically. As a part of an extension of the optical-mechanical analogy, we have considered examples of “quantum operations” on the electromagnetic wave state in a pair of waveguides. Furthermore, we have provided examples of “quantum-mechanical” calculations of nonlinear transfer functions for the implementation of the considered element in optical neural networks. |
| first_indexed | 2024-03-09T18:40:28Z |
| format | Article |
| id | doaj.art-ca88f55b172741c8ac5947eb2439038f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T18:40:28Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-ca88f55b172741c8ac5947eb2439038f2023-11-24T06:45:39ZengMDPI AGSensors1424-82202022-10-012221828610.3390/s22218286A Pair of Coupled Waveguides as a Classical Analogue for a Solid-State QubitAndrey E. Schegolev0Nikolay V. Klenov1Anna V. Bogatskaya2Rustam D. Yusupov3Alexander M. Popov4D. V. Skobeltsyn Institute of Nuclear Physics, Moscow State University, 119991 Moscow, RussiaFaculty of Physics, Moscow State University, 119991 Moscow, RussiaFaculty of Physics, Moscow State University, 119991 Moscow, RussiaScience and Research Department, Moscow Technical University of Communication and Informatics, 111024 Moscow, RussiaFaculty of Physics, Moscow State University, 119991 Moscow, RussiaWe have determined conditions when a pair of coupled waveguides, a common element for integrated room-temperature photonics, can act as a qubit based on a system with a double-well potential. Moreover, we have used slow-varying amplitude approximation (SVA) for the “classical” wave equation to study the propagation of electromagnetic beams in a couple of dielectric waveguides both analytically and numerically. As a part of an extension of the optical-mechanical analogy, we have considered examples of “quantum operations” on the electromagnetic wave state in a pair of waveguides. Furthermore, we have provided examples of “quantum-mechanical” calculations of nonlinear transfer functions for the implementation of the considered element in optical neural networks.https://www.mdpi.com/1424-8220/22/21/8286integrated photonicsslow-varying amplitude approximationSchrödinger equationdouble-well potentialqubitneuron |
| spellingShingle | Andrey E. Schegolev Nikolay V. Klenov Anna V. Bogatskaya Rustam D. Yusupov Alexander M. Popov A Pair of Coupled Waveguides as a Classical Analogue for a Solid-State Qubit Sensors integrated photonics slow-varying amplitude approximation Schrödinger equation double-well potential qubit neuron |
| title | A Pair of Coupled Waveguides as a Classical Analogue for a Solid-State Qubit |
| title_full | A Pair of Coupled Waveguides as a Classical Analogue for a Solid-State Qubit |
| title_fullStr | A Pair of Coupled Waveguides as a Classical Analogue for a Solid-State Qubit |
| title_full_unstemmed | A Pair of Coupled Waveguides as a Classical Analogue for a Solid-State Qubit |
| title_short | A Pair of Coupled Waveguides as a Classical Analogue for a Solid-State Qubit |
| title_sort | pair of coupled waveguides as a classical analogue for a solid state qubit |
| topic | integrated photonics slow-varying amplitude approximation Schrödinger equation double-well potential qubit neuron |
| url | https://www.mdpi.com/1424-8220/22/21/8286 |
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