Families of stable solitons and excitations in the PT-symmetric nonlinear Schrödinger equations with position-dependent effective masses
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DOI: 10.1038/s41598-017-01401-3
Abstract: Since the parity-time-($$\pmb{\mathscr{P}}\pmb{\mathscr{T}}$$PT-) symmetric quantum mechanics was put forward, fundamental properties of some linear and nonlinear models with $$\pmb{\mathscr{P}}\pmb{\mathscr{T}}$$PT-symmetric potentials have been investigated. However, previous studies of $$\pmb{\mathscr{P}}\pmb{\mathscr{T}}$$PT-symmetric waves were limited to constant diffraction coefficients… read more here.
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