315 citations
- M. Lakshmanan5 profiles74 · h 53
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- SASTRA UniversityIN24 papers
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9 papers · 1 filter
Non-Lagrangian approach for coupled complex Ginzburg-Landau systems with higher order-dispersion
Roger Bertin Djob, Aurelien Kenfact-Jiotsa, A. Govindarajan
It is known that after a particular distance of evolution in fiber lasers, two (input) asymmetric soliton like pulses emerge as two (output) symmetric pulses having same and consta…
Nonlinear nonuniform -symmetric Bragg grating structures
S. Vignesh Raja, A. Govindarajan, A. Mahalingam +1
We explore the consequences of incorporating parity and time reversal () symmetries on the dynamics of nonreciprocal light propagation exhibited by a class of nonunif…
C and Fortran OpenMP programs for rotating Bose-Einstein condensates
Ramavarmaraja Kishor Kumar, Vladimir Loncar, Paulsamy Muruganandam +2
We present OpenMP versions of C and Fortran programs for solving the Gross-Pitaevskii equation for a rotating trapped Bose-Einstein condensate (BEC) in two (2D) and three (3D) spat…
Cubic-quintic nonlinear Helmholtz equation: Modulational instability, chirped elliptic and solitary waves
K. Tamilselvan, T. Kanna, A. Govindarajan
We study the formation and propagation of chirped elliptic and solitary waves in cubic-quintic nonlinear Helmholtz (CQNLH) equation. This system describes nonparaxial pulse propaga…
Quantum cosmology for non-minimally coupled scalar field in FLRW space-time: A symmetry analysis
Sourav Dutta, Muthusamy Lakshmanan, Subenoy Chakraborty
The present work deals with quantum cosmology for non-minimally coupled scalar field in the background of FLRW space--time model. The Wheeler-DeWitt equation is constructed and sym…
Long-range interaction induced collective dynamical behaviors
K. Sathiyadevi, V. K. Chandrasekar, D. V. Senthilkumar +1
Long-range interacting systems are omnipresent in nature. We investigate here the collective dynamical behavior in a long-range interacting system consisting of coupled Stuart-Land…