# Pair symmetry conversion in driven multiband superconductors

## TL;DR

This paper demonstrates how time-dependent drives can convert even-frequency superconducting pairs into odd-frequency pairs and vice versa in multiband superconductors with interband scattering, revealing new control over pair symmetries.

## Contribution

It introduces a mechanism for symmetry conversion of superconducting pairs in multiband systems under dynamic driving conditions, expanding understanding of pair symmetry manipulation.

## Key findings

- Time-dependent drives enable pair symmetry conversion.
- Interband scattering facilitates odd-frequency pair generation.
- Potential experimental signatures of symmetry conversion are discussed.

## Abstract

It was recently shown that odd-frequency superconducting pair amplitudes can be induced in conventional superconductors subjected to a spatially-nonuniform time-dependent drive. It has also been shown that, in the presence of interband scattering, multiband superconductors will possess bulk odd-frequency superconducting pair amplitudes. In this work we build on these previous results to demonstrate that by subjecting a multiband superconductor with interband scattering to a time-dependent drive even-frequency pair amplitudes can be converted to odd-frequency pair amplitudes and vice versa. We will discuss the physical conditions under which these pair symmetry conversions can be achieved and possible experimental signatures of their presence.