ICTS

Research Interests

• Non-equilibrium Quantum Dynamics
• Ergodicity in Quantum Systems and its Breaking
• Quantum Chaos
• Random Matrix Theory

Preprints

1. Robust Correlation-Induced Localization Under Time-Reversal Symmetry Breaking
   Bikram Pain, Sthitadhi Roy, Jens H. Bardarson, Ivan M. Khaymovich
   arXiv:2604.02321
2. Krylov-space anatomy and spread complexity of a disordered quantum spin chain.
   Bikram Pain, David E. Logan, Sthitadhi Roy.
   arXiv:2603.25724
3. Imprints of information scrambling on eigenstates of a quantum chaotic system.
   Bikram Pain, Ratul Thakur, Sthitadhi Roy.
   arXiv:2507.02853

Publications

1. Logarithmic entanglement lightcone from eigenstate correlations in the many-body localised phase.
   Ratul Thakur, Bikram Pain, Sthitadhi Roy.
   Phys. Rev. B 111, 174206
2. Entanglement dynamics and eigenstate correlations in strongly disordered quantum many-body systems.
   Bikram Pain, Sthitadhi Roy.
   Phys. Rev. B 110, 224201
3. The connection between Hilbert-space return probability and real-space autocorrelations in quantum spin chains.
   Bikram Pain, Kritika Khanwal, Sthitadhi Roy.
   Phys. Rev. B 108, L140201 (Letter)