10 citations · 30 across the 9 of their papers we have counts for
10 papers
KKT Residual Sliding Manifolds: A Projection-Free Structured Finite-Time Solver for Nonlinear Constrained Optimisation
Abdelhafid Zenati, Kamal Youcef-Toumi
Nonlinear Constrained Optimisation (NCO) requires simultaneous satisfaction of the Karush-Kuhn-Tucker (KKT) conditions. Existing methods enforce these conditions through projection…
Information scrambling in all-to-all interacting models
Abhik Kumar Saha, Tanay Pathak, Masaki Tezuka
Information scrambling is a hallmark of quantum chaos and thermalization in isolated quantum many-body systems. We investigate scrambling dynamics in the all-to-all interacting spi…
Vibrational resonance in a one-dimensional dissipative Bose-Josephson junction
Abhik Kumar Saha
We investigate the linear and nonlinear response of a one-dimensional dissipative Bose-Josephson junction subjected simultaneously to a weak low-frequency probe and a rapidly oscil…
Dynamics of one-dimensional Bose-Josephson Junction in a Box Trap: From Coherent Oscillations to Many-Body Dephasing and Dynamical Freezing
Abhik Kumar Saha, L. F. Calazans de Brito, Cesare Vianello +4
Understanding how coherent quantum dynamics give way to correlation-dominated behavior in low-dimensional systems remains a central challenge in quantum many-body physics. Here, we…
Phase diffusion and fluctuations in a dissipative Bose-Josephson junction
Abhik Kumar Saha, Deb Shankar Ray, Bimalendu Deb
We analyze the phase diffusion, quantum fluctuations and their spectral features of an one-dimensional Bose-Josephson junction (BJJ) coupled to a bosonic heat bath. We show the dep…
Characterizing far from equilibrium states of the one-dimensional nonlinear Schr{ö}dinger equation
Abhik Kumar Saha, Romain Dubessy
We use the mathematical toolbox of the inverse scattering transform to study quantitatively the number of solitons in far from equilibrium one-dimensional systems described by the…