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2014 ; 470
(2172
): 20140364
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Numerical study of fractional nonlinear Schrödinger equations
#MMPMID25484604
Klein C
; Sparber C
; Markowich P
Proc Math Phys Eng Sci
2014[Dec]; 470
(2172
): 20140364
PMID25484604
show ga
Using a Fourier spectral method, we provide a detailed numerical investigation of
dispersive Schrödinger-type equations involving a fractional Laplacian in an
one-dimensional case. By an appropriate choice of the dispersive exponent, both
mass and energy sub- and supercritical regimes can be identified. This allows us
to study the possibility of finite time blow-up versus global existence, the
nature of the blow-up, the stability and instability of nonlinear ground states
and the long-time dynamics of solutions. The latter is also studied in a
semiclassical setting. Moreover, we numerically construct ground state solutions
of the fractional nonlinear Schrödinger equation.