2016/08/29 by Yaroslav V. Kartashov, Victor A. Vysloukh, Lluis Torner
Physics and Astronomy · #Dissipative soliton #Nonlinear Photonic Systems #Nonlinear Waves and Solitons #Nonlinear system #Phase (matter) #Quantum Mechanics and Non-Hermitian Physics #Range (aeronautics) #Self-phase modulation #Soliton #Transverse plane #cond-mat.quant-gas #nlin.PS #physics.optics
paper · pdf · doi:10.1364/ol.41.004348
published as Optics Letters 41, 4348 (2016) · 4 pages, 5 figures, to appear in Optics Letters
arxiv created 2016/08/29 · openalex publication_date 2016/09/12 · openalex created_date 2016/09/16 · arxiv updated 2016/11/03 · openalex updated_date 2026/08/05
We address the transverse mobility of spatial solitons in competing parity-time-symmetric linear and nonlinear lattices. The competition between out-of-phase linear and nonlinear lattices results in a drastic mobility enhancement within a range of soliton energies. We show that within such a range, the addition of even a small imaginary part in the linear potential makes soliton mobility strongly asymmetric. For a given initial phase tilt, the velocity of soliton motion grows with an increase of the balanced gain/losses. In this regime of enhanced mobility, tilted solitons can efficiently drag other solitons that were initially at rest to form moving soliton pairs.