# The effect of alternating current on the current states of a quantum interferometer shunted by a superconducting inductance

## TL;DR

This paper investigates how alternating current and magnetic fields influence the current states of a superconducting quantum interferometer with inductance, revealing new stationary states during resistive transitions.

## Contribution

It introduces a novel discrete stationary state in a superconducting interferometer under combined AC and DC stimuli, expanding understanding of its current state behavior.

## Key findings

- Reversible changes in critical current and current states were observed.
- A new discrete stationary state was discovered during resistive transition.
- The combined effect of AC and magnetic fields significantly alters the interferometer's behavior.

## Abstract

The patterns of reversible changes in the critical current and discrete current states of a structure in the form of a superconducting quantum interferometer shunted by superconducting inductance, as a result of passing an alternating transport current through the structure and applying an external alternating magnetic field simultaneously with a direct transport current, was established. A new type of discrete stationary state was discovered during the transition of the interferometer to the resistive state caused by the combined action of direct and alternating transport currents.

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Source: https://tomesphere.com/paper/1812.00732