CiteULike is a free online bibliography manager. Register and you can start organising your references online.
Tags

# Pseudo Parity-Time Symmetry in Optical Systems

arXiv:1302.1091 [physics.optics] (5 Feb 2013)  Key: citeulike:12011304

## Likes (beta)

This copy of the article hasn't been liked by anyone yet.

### Abstract

We introduce a novel concept of the pseudo parity-time ($\mathcalPT$) symmetry in periodically modulated optical systems with balanced gain and loss. We demonstrate that whether the original system is $\mathcalPT$-symmetric or not, we can manipulate the property of the $\mathcalPT$ symmetry by applying a periodic modulation in such a way that the effective system derived by the high-frequency Floquet method is $\mathcalPT$ symmetric. If the original system is non-$\mathcalPT$ symmetric, the $\mathcalPT$ symmetry in the effective system will lead to quasi-stationary propagation that can be associated with the pseudo $\mathcalPT$ symmetry. Our results provide a promising approach for manipulating the $\mathcalPT$ symmetry of realistic systems.