Author

Sankha Subhra Bakshi

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Preprint Sep 2026

Spatial instability of a homogeneous superconductor after an interaction quench

We investigate the quantum dynamics of a conventional superconductor, described by the attrac- tive Hubbard model, driven far from equilibrium by quenching the Hubbard attraction. We evolve the full density matrix of the system in time using the Heisenberg equation of motion, tracking the spatiotemporal dynamics of the...

M. Choudhury, Sankha Subhra Bakshi, Pinaki Majumdar et al. · 0 citations

Preprint Sep 2026

Exact Equivariance from Ordinary Neural Networks for Lattice Many-Body Dynamics

Large-scale simulations of correlated electron systems require repeated evaluations of the electronic forces and transition energies driving collective dynamics. Machine-learning surrogates alleviate this bottleneck, but incorporating symmetry often involves carefully designed descriptors or specialized network archite...

Ho Jang, Sankha Subhra Bakshi, G. Chern · 0 citations