25 citations · 86 across the 9 of their papers we have counts for
9 papers · 1 filter
Dynamical Signatures and Kibble-Zurek Scaling of Localization in Tilted Bose-Einstein Condensates
Argha Debnath, Radheshyam Saha, Ravindra W. Chhajlany +2
We study nonequilibrium signatures of tilt-induced localization in a one-dimensional Bose-Einstein condensate loaded in a shallow optical lattice. The tilt strength acts as a contr…
Localization from Infinitesimal Kinetic Grading: Finite-size Scaling, Kibble-Zurek Dynamics and Applications in Sensing
Argha Debnath, Ayan Sahoo, Debraj Rakshit
We study a one-dimensional lattice model with site-dependent nearest-neighbor hopping amplitudes that follow a power-law profile. The hopping variation is controlled by a grading e…
Tilt-Induced Localization in Interacting Bose-Einstein Condensates for Quantum Sensing
Argha Debnath, Mariusz Gajda, Debraj Rakshit
We investigate localization transitions in interacting Bose-Einstein condensates (BECs) confined in tilted optical lattices, focusing on both the continuum limit accessed via shall…
Dynamics of Bright Soliton Under Cubic-Quartic Interactions in Quasi One-Dimensional Geometry
Argha Debnath, Ayan Khan, Prasanta K Panigrahi
Recent inspection of liquid-like state in ultracold atomic gases due to the stabilization mechanism through the delicate balance between effective mean-field and beyond mean-field…
Interaction of One-Dimensional Quantum Droplets with Potential Wells and Barriers
Argha Debnath, Ayan Khan, Boris Malomed
We address static and dynamical properties of one-dimensional (1D) quantum droplets (QDs) under the action of local potentials in the form of narrow wells and barriers. The QDs are…
Dropleton-Soliton Crossover mediated via Trap Modulation
Argha Debnath, Ayan Khan, Saurabh Basu
We report a droplet to a soliton crossover by tuning the external confinement potential in a dilute Bose-Eienstein condensate by numerically solving the modified Gross-Pitaevskii e…
Signature of Supersolidity in a Driven Cubic-Quartic Nonlinear Schrödinger Equation
Argha Debnath, Jammu Tarun, Ayan Khan
We present analytical solution, which is periodic in nature, for a driven cubic-quartic nonlinear Schrödinger equation (DCQNLSE) placed in a bi-chromatic optical lattice. The solut…
Investigation of Quantum Droplet: An Analytical Approach
Argha Debnath, Ayan Khan
Recent observations of droplets in dipolar and binary Bose-Einstein condensate (BEC) motivates us to study the theory of droplet formation in detail. Precisely, we are interested i…
On Solving Cubic-Quartic Nonlinear Schrödinger Equation in a Cnoidal Trap
Argha Debnath, Ayan Khan
The recent observations of quantum droplet in ultra-cold atomic gases have opened up new avenues of fundamental research. The competition between mean-field and beyond mean-field i…