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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

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Microwave-Induced Inverse Faraday Effect in Superconductors.

A Hamed Majedi¹

¹Department of Electrical and Computer Engineering, Department of Physics and Astronomy, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1.

Physical Review Letters

|September 3, 2021

Summary

This summary is machine-generated.

Scientists propose the inverse Faraday effect (IFE) in superconductors, generating magnetization with circularly polarized microwaves. This phenomenon offers new nonlinear and gyrotropic effects in superconductors for potential applications.

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Area of Science:

Condensed Matter Physics
Electromagnetism
Superconductivity

Background:

The inverse Faraday effect (IFE) typically describes magnetization generation in materials exposed to circularly polarized light.
Superconductors exhibit unique electromagnetic properties due to the behavior of Cooper pairs.

Purpose of the Study:

To theoretically propose and analyze the inverse Faraday effect (IFE) in superconductors.
To explore the resulting nonlinear and gyrotropic phenomena in superconductors under microwave irradiation.

Main Methods:

Classical modeling of the IFE in superconductors.
Quantitative analysis of superconducting properties derived from complex conductivity.
Theoretical prediction and analysis of microwave-induced effects.

Main Results:

A static magnetization is generated in superconductors via the IFE using circularly polarized microwaves.
The superconducting gyration coefficient is explicitly related to complex conductivity.
Microwave-induced gyroelectric conductivity, Hall effect, and birefringence are predicted.
Flux quantization and vortex states are analyzed.
A unique microwave birefringence in gyrotropic superconductors is highlighted.

Conclusions:

The IFE is a viable mechanism for inducing magnetization and nonlinear effects in superconductors.
Superconductors exhibit novel gyrotropic behaviors and phenomena under microwave fields.
This research opens avenues for new applications in microwave technologies and superconductivity.