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Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

Creating electronic oscillator-based Ising machines without external injection locking.

Jaykumar Vaidya¹, R S Surya Kanthi¹, Nikhil Shukla²

¹Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, 22904, USA.

Scientific Reports

|January 20, 2022

Summary

This summary is machine-generated.

Researchers developed a new electronic autaptic oscillator (EAO) for Ising machines. This design internally generates a necessary signal, eliminating external components for solving complex problems like the Maximum Cut problem.

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Area of Science:

Physics and Engineering
Computational Science
Materials Science

Background:

Coupled electronic oscillators are explored for compact, room-temperature Ising machines.
Current Ising machine designs require external second-harmonic signal injection for phase bipartition.
This external injection complicates hardware and limits applicability.

Purpose of the Study:

To experimentally demonstrate a novel electronic autaptic oscillator (EAO) for Ising machines.
To eliminate the need for external second-harmonic signal generation and injection.
To advance analog computing platforms for specific applications.

Main Methods:

Engineered feedback in the EAO to create two decay time constants.
Experimental demonstration of capacitively coupled EAOs.
Application of the EAO system to solve the Maximum Cut (MaxCut) problem.

Main Results:

The EAO internally generates the required second harmonic signal, bypassing external injection.
A system of coupled EAOs successfully exhibited phase bipartition without external signals.
The EAO system was applied to solve the computationally challenging MaxCut problem.

Conclusions:

The developed EAO is a viable component for oscillator-based Ising machines.
This design simplifies hardware requirements and enhances the practicality of Ising machines.
The EAO contributes to the development of application-specific analog computing platforms.