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Updated: Aug 22, 2025

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Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
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A Pair of Coupled Waveguides as a Classical Analogue for a Solid-State Qubit
Andrey E Schegolev1,2, Nikolay V Klenov3, Anna V Bogatskaya3,4
1D. V. Skobeltsyn Institute of Nuclear Physics, Moscow State University, 119991 Moscow, Russia.
Sensors (Basel, Switzerland)
|November 11, 2022
Summary
Coupled waveguides can function as qubits for integrated photonics. This research explores their quantum operations and nonlinear transfer functions for optical neural networks.
Area of Science:
- Integrated photonics
- Quantum optics
- Nonlinear optics
Background:
- Coupled waveguides are fundamental components in integrated photonics.
- The optical-mechanical analogy provides a framework for understanding light-matter interactions.
- Quantum operations are essential for quantum computing and information processing.
Purpose of the Study:
- To determine conditions for coupled waveguides to act as qubits.
- To investigate electromagnetic beam propagation in coupled waveguides using the slow-varying amplitude approximation (SVA).
- To explore quantum operations and nonlinear transfer functions for optical neural network implementation.
Main Methods:
- Analytical and numerical study of electromagnetic beam propagation.
- Application of the slow-varying amplitude approximation (SVA) to the wave equation.
- Quantum-mechanical calculations of nonlinear transfer functions.
Main Results:
- Identified conditions for coupled waveguides to function as qubits.
- Demonstrated the applicability of SVA for analyzing beam propagation.
- Provided examples of quantum operations and nonlinear transfer functions.
Conclusions:
- Coupled waveguides offer a promising platform for integrated photonic qubits.
- The findings support the use of coupled waveguides in optical neural networks.
- This work bridges classical wave optics with quantum mechanical principles.
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