201 citations · 419 across the 13 of their papers we have counts for
13 papers
Continuous-wave solutions and modulational instability in spinor condensates of positronium
Ishfaq Ahmad Bhat, Thudiyangal Mithun, B. A. Malomed +1
We obtain general continuous-wave (CW)\ solutions in the model of a spinor positronium condensate in the absence of magnetic field. The CW solutions with both in-phase () and…
Study of implosion in an attractive Bose-Einstein condensate
S. Sabari, A. Choudhuri, K. Porsezian +1
By solving the Gross-Pitaevskii equation analytically and numerically, we reexamine the implosion phenomena that occur beyond the critical value of the number of atoms of an attrac…
Dynamical stabilization of two-dimensional trapless Bose-Einstein condensates by three-body interaction and quantum fluctuations
S. Sabari, K. Porsezian, P. Muruganandam
Analyzing a Gross-Pitaevskii equation with cubic, quartic, and quintic nonlinearities through analytical and numerical methods, we examine the stability of two-dimensional (2D) tra…
Ultrashort dark solitons interactions and nonlinear tunneling in the modified nonlinear Schrödinger equation with variable coefficients
N. M. Musammil, K. Porsezian, K. Nithyanandan +2
We present the study of the dark soliton dynamics in an inhomogenous fiber by means of a variable coefficient modified nonlinear Schrödinger equation (Vc-MNLSE) with distributed di…
Modulation instability in quasi two-dimensional spin-orbit coupled Bose-Einstein condensates
S. Bhuvaneswari, K. Nithyanandan, P. Muruganandam +1
We theoretically investigate the dynamics of modulation instability (MI) in two-dimensional spin-orbit coupled Bose-Einstein condensates (BECs). The analysis is performed for equal…
Manipulation of light in a generalized coupled Nonlinear Schrodinger equation
R. Radha, P. S. Vinayagam, K. Porsezian
We investigate a generalized coupled nonlinear Schrodinger (GCNLS) equation containing Self-Phase Modulation (SPM), Cross-Phase Modulation (XPM) and Four Wave Mixing (FWM) describi…
Disorder Induced Vortex Lattice Melting in Bose-Einstein Condensate
T. Mithun, K. Porsezian, Bishwajyoti Dey
We study the vortex lattice dynamics in presence of single impurity as well as random impurities or disorder. We show that in presence of a single impurity the vortex lattice gets…
Generalized gauge transformation approach to construct dark solitons of coupled nonlinear Schrodinger type equations
P. S. Vinayagam, R. Radha, Vivek M. Vyas +1
We harness the freedom in the celebrated gauge transformation approach to generate dark solitons of coupled nonlinear Schrödinger (NLS) type equations. The new approach which is pu…
Pinning of Hidden Vortices in Bose-Einstein Condensate
T. Mithun, K. Porsezian, Bishwajyoti Dey
We study the vortex dynamics and vortex pinning effect in Bose-Einstein condensate in a rotating double-well trap potential and co-rotating optical lattice. We show that, in agreem…
Rotation of the Trajectories of Bright soliton and Realignment of Intensity Distribution in the Coupled Nonlinear Schrodinger Equation
R. Radha, P. S. Vinayagam, K. Porsezian
We revisit the collisional dynamics of bright solitons in the coupled Nonlinear Schrodinger equation. We observe that apart from the intensity redistribution in the interaction of…
Breather and Rogue Wave solutions of a Generalized Nonlinear Schrodinger Equation
L. H. Wang, K. Porsezian, J. S. He
In this paper, using the Darboux transformation, we demonstrate the generation of first order breather and higher-order rogue waves from a generalized nonlinear Schrödinger equatio…
Higher-Order Nonlinear Schrodinger equation with derivative non-Kerr nonlinear terms: A model for sub-10fs pulse propagation
Amitava Choudhuri, K. Porsezian
We analytically solved the higher-order nonlinear Schrodinger (HNLS) equation with non-Kerr nonlinearity under some parametric conditions and investigated explicitly bright and dar…
Dynamics of matter-wave solutions of Bose-Einstein condensates in a homogeneous gravitational field
Etienne Wamba, Hermano Velten, Alidou Mohamadou +2
We find a matter-wave solution of Bose-Einstein condensates trapped in a harmonic-oscillator potential and subjected to a homogeneous gravitational field, by means of the extended…