62 citations · 363 across the 22 of their papers we have counts for
21 papers
Spectral analysis for compressible quantum fluids
Ashton S. Bradley, R. Kishor Kumar, Sukla Pal +1
Turbulent fluid dynamics typically involves excitations on many different length scales. Classical incompressible fluids can be cleanly represented in Fourier space enabling spectr…
Infinite dipolar droplet -- a simple theory for the macro-droplet regime
Sukla Pal, D. Baillie, P. B. Blakie
In this paper we develop a theory for an infinitely long droplet state of a zero temperature dipolar bosonic gas. The infinite droplet theory yields simpler equations to solve for…
PArallel, Robust, Interface Simulator (PARIS)
W. Aniszewski, T. Arrufat, M. Crialesi-Esposito +10
Paris (PArallel, Robust, Interface Simulator) is a finite volume code for simulations of immiscible multifluid or multiphase flows. It is based on the "one-fluid" formulation of th…
Excitations and number fluctuations in an elongated dipolar Bose-Einstein condensate
Sukla Pal, D. Baillie, P. B. Blakie
We study the properties of a magnetic dipolar Bose-Einstein condensate (BEC) in an elongated (cigar shaped) confining potential in the beyond quasi-one-dimensional (quasi-1D) regim…
Variational theory for the ground state and collective excitations of an elongated dipolar condensate
P. Blair Blakie, D. Baillie, Sukla Pal
We develop a variational theory for a dipolar condensate in an elongated (cigar shaped) confinement potential. Our formulation provides an effective one-dimensional extended meanfi…
Quantum Hall states for in optical lattices
Rukmani Bai, Soumik Bandyopadhyay, Sukla Pal +2
We examine the quantum Hall (QH) states of the optical lattices with square geometry using Bose-Hubbard model (BHM) in presence of artificial gauge field. In particular, we focus o…
Quantum phases of tilted dipolar bosons in two-dimensional optical lattice
Soumik Bandyopadhyay, Rukmani Bai, Sukla Pal +3
We consider a minimal model to describe the quantum phases of ultracold dipolar bosons in two-dimensional (2D) square optical lattices. The model is a variation of the extended Bos…
Supersolid phase of the extended Bose-Hubbard model with an artificial gauge field
K. Suthar, Hrushikesh Sable, Rukmani Bai +3
We examine the zero and finite temperature phase diagrams of soft-core bosons of the extended Bose-Hubbard model on a square optical lattice. To study various quantum phases and th…
Enhancement of the Bose glass phase in the presence of an artificial gauge field
Sukla Pal, Rukmani Bai, Soumik Bandyopadhyay +2
We examine the effects of an artificial gauge field and finite temperature in a two-dimensional disordered Bose-Hubbard model. The disorder considered is diagonal and quenched in n…
FACt: FORTRAN toolbox for calculating fluctuations in atomic condensates
Arko Roy, Sukla Pal, S. Gautam +2
We develop a FORTRAN code to compute fluctuations in atomic condensates (FACt) by solving the Bogoliubov-de Gennes (BdG) equations for two component Bose-Einstein condensate (TBEC)…
Bosonic quantum Hall states in single-layer two-dimensional optical lattices
Rukmani Bai, Soumik Bandyopadhyay, Sukla Pal +2
Quantum Hall (QH) states of 2D single layer optical lattices are examined using Bose-Hubbard model (BHM) in presence of artificial gauge field. We study the QH states of both the h…
Collective modes in multicomponent condensates with anisotropy
Sukla Pal, Arko Roy, D. Angom
We report the effects of anisotropy in the confining potential on two component Bose-Einstein condensates (TBECs) through the properties of the low energy quasiparticle excitations…
Dynamics of binary Bose-Einstein condensate via Ehrenfest like equations: Appearance of almost shape invariant states
Sukla Pal, Jayanta K. Bhattacharjee
We derive Ehrenfest like equations for the coupled Gross Pitaevskii equations (CGPE) which describe the dynamics of the binary Bose-Einstein condensate (BBEC) both in the free part…
Bifurcations, stability, and mode evolution in segregated condensate mixtures
Sukla Pal, Arko Roy, D. Angom
We present new features of low energy Bogoliubov quasiparticle excitations of a two component Bose-Einstein condensate (TBEC) in quasi-2D geometry at zero temperature using Hartree…
Large compact clusters and fast dynamics in coupled nonequilibrium systems
Shauri Chakraborty, Sukla Pal, Sakuntala Chatterjee +1
We demonstrate particle clustering on macroscopic scales in a coupled nonequilibrium system where two species of particles are advected by a fluctuating landscape and modify the la…
Thomas Fermi approximation and large- quantum mechanics
Sukla Pal, Jayanta K. Bhattacharjee
We note that the Thomas Fermi limit of Gross Pitaevskii equation and limit of quantum mechanics, where is the dimensionality of space, are based on the same point of vie…
Gross Pitaevskii Equation with a Morse potential: bound states and evolution of wave packet
Sukla Pal, Jayanta K. Bhattacharjee
We consider systems governed by the Gross Pitaevskii equation (GPE) with the Morse potential as the trapping potential. For positive values of the coupl…
Wave packet dynamics for a non-linear Schrodinger equation: Qualitative changes with changes in the initial width
Sukla Pal, J. K. Bhattacharjee
The propagation of an initially Gaussian wave packet of width in a cubic non-linear Schrodinger equation with a negative coupling constant for the nonlinear term is considere…
Ground state of the one dimensional Gross-Pitaevskii equation with a Morse potential
Sukla Pal, Jayanta K. Bhattacharjee
We have studied the ground state of the Gross-Pitaevskii equation (nonlinear Schrodinger equation) for a Morse potential via a variational approach. It is seen that the ground stat…
Wave-packet dynamics for a coupled Gross-Pitaevskii equation
Sukla Pal, Jayanta K. Bhattacharjee
Starting from coupled Gross-Pitaevskii equation (GPE) describing the dynamics of binary Bose Einstein Condensate (BEC), we have explored the dynamics of the width of initial wave-p…
Stability and The Existence of Coherent Structure in Demixed State of Binary BEC
Sukla Pal, J. K. Bhattacharjee
From a linear stability analysis of the Gross Pitaevskii equation for binary Bose Einstein condensates, it is found that the uniform state becomes unstable to a periodic perturbati…