A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf
.
Stability analysis for solitons inPT-symmetric optical lattices
2012
Physical Review A. Atomic, Molecular, and Optical Physics
Stability of solitons in parity-time (PT)-symmetric periodic potentials (optical lattices) is analyzed in both one- and two-dimensional systems. First we show analytically that when the strength of the gain-loss component in the PT lattice rises above a certain threshold (phase-transition point), an infinite number of linear Bloch bands turn complex simultaneously. Second, we show that while stable families of solitons can exist in PT lattices, increasing the gain-loss component has an overall
doi:10.1103/physreva.85.023822
fatcat:ahpbhgmfbvfa3ajb5tio7dll4a