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Mrutyunjaya Sahoo

Publications and source records attributed to Mrutyunjaya Sahoo.

2 recordsLinked to original sources

G-KdVNet: ANN-ADM Surrogate for Geophysical KdV Equation

This research examines the influence of the Coriolis parameter on the behaviour of the geophysical Korteweg-de Vries (KdV) equation. To efficiently approximate its solution, a novel surrogate framework, termed G-KdVNet, is proposed by integrating artificial neural networks with the Adomian decomposition method (ADM). In the proposed approach, ADM is first employed to generate reliable semi-analytical solution data, which are subsequently used to train the neural network model. The developed model demonstrates strong predictive capability in capturing the nonlinear dynamics of the KdV system. Numerical results indicate that the proposed model achieves improved accuracy compared with conventional baseline methods, with absolute errors of the order of e-3 for unseen data. The results suggest that the proposed ANN-ADM surrogate offers an efficient and accurate alternative for solving nonlinear geophysical models, with potential applicability to a broader class of dispersive wave equations.

math.DS↗

Generating discrete time crystals through optimal control

In this work we use optimal control to generate Discrete Time Crystals (DTC) in generic many-body quantum systems. We define appropriate cost functions, which, when optimized, result in the formation of DTCs. This hitherto unexplored method represents DTCs as an optimization problem, and allows us to find non-trivial realistic periodic control pulses and parameter regimes which result in spontaneous breaking of time-translational symmetry in quantum systems. We exemplify our approach using many-body quantum systems in the presence, as well as absence of dissipation. We also discuss possible experimental realization of the control protocol for generating DTCs.

quant-ph↗