# Stability of solitons in parity-time-symmetric couplers.

@article{Driben2011StabilityOS, title={Stability of solitons in parity-time-symmetric couplers.}, author={Rodislav Driben and Boris A. Malomed}, journal={Optics letters}, year={2011}, volume={36 22}, pages={ 4323-5 } }

Families of analytical solutions are found for symmetric and antisymmetric solitons in a dual-core system with Kerr nonlinearity and parity-time (PT)-balanced gain and loss. The crucial issue is stability of the solitons. A stability region is obtained in an analytical form, and verified by simulations, for the PT-symmetric solitons. For the antisymmetric ones, the stability border is found in a numerical form. Moving solitons of both types collide elastically. The two soliton species merge…

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