More Like this

1. Reflective limiters based on self-induced violation of $\mathcal{C}\mathcal{T}$ symmetry

   https://doi.org/10.1103/PhysRevA.97.043864  

   Makri, Eleana; Thomas, Roney; Kottos, Tsampikos (April 2018, Physical Review A)
2. Non-Hermitian $\mathcal{C}\mathcal{T}$ -Symmetric Spectral Protection of Nonlinear Defect Modes

   https://doi.org/10.1103/PhysRevLett.125.113901  

   Jeon, Do Hyeok; Reisner, Mattis; Mortessagne, Fabrice; Kottos, Tsampikos; Kuhl, Ulrich (September 2020, Physical Review Letters)

   null (Ed.)
3. Characteristic determinant approach to the spectrum of one-dimensional $\mathcal{P}\mathcal{T}\text{-symmetric}$ systems

   https://doi.org/10.1103/d9wj-v62g  

   Gasparian, Vladimir; Guo, Peng; Pérez-Garrido, Antonio; Jódar, Esther (September 2025, Physical Review Research)

   We obtain a closed-form expression for the energy spectrum of $\mathcal{P}\mathcal{T}\text{-symmetric}$ superlattice systems with complex potentials of periodic sets of two $\delta \mathrm{potentials}$ in the elementary cell. In the presence of periodic gain and loss, we analyzed in detail a diatomic crystal model, varying either the scatterer distances or the potential heights. It is shown that at a certain critical value of the imaginary part of the complex amplitude, topological states depending on the lattice size and the configuration of the unit cell can be pushed out from the given region. This may happen at the $\mathcal{PT}\text{-symmetry}$ breaking (exceptional) points. 

   more » « less
4. Scattering in $\mathcal{PT}-$ and $\mathcal{RT}\text{-symmetric}$ multimode waveguides: Generalized conservation laws and spontaneous symmetry breaking beyond one dimension

   https://doi.org/10.1103/PhysRevA.92.062135  

   Ge, Li; Makris, Konstantinos G.; Christodoulides, Demetrios N.; Feng, Liang (December 2015, Physical Review A)
5. Experimental Realization of Floquet $\mathcal{P}\mathcal{T}$ -Symmetric Systems

   https://doi.org/10.1103/PhysRevLett.119.093901  

   Chitsazi, Mahboobeh; Li, Huanan; Ellis, F. M.; Kottos, Tsampikos (September 2017, Physical Review Letters)