# Non-Hermitian quantum walks uncover dynamical quantum phase transitions under self-normal and biorthogonal bases

## TL;DR

This paper explores how different bases affect quantum phase transitions in non-Hermitian quantum walks.

## Contribution

It reveals distinct critical times and momenta under self-normal and biorthogonal bases.

## Key findings

- Critical times differ between self-normal and biorthogonal bases.
- Critical momenta also show discrepancies in the two bases.
- Experimental validation supports the theoretical analysis.

## Abstract

The differences in critical times and critical momenta between self-normal and biorthogonal dynamical quantum phase transitions are revealed. The theoretical analysis is experimentally validated through multiple quench processes using a one-dimensional discrete-time non-Hermitian quantum walks.