From the 1 of 10 linked papers with an AI index.
10 papers
Magic Without Entanglement: Exact Revivals and Their Fisher Information Origin
Rishabh Jha, Karun Gadge
The paper explores the relationship between quantum magic and entanglement, showing how stabilizer Rényi entropy curvature relates to quantum Fisher information and constructing mo…
Theory of Strongly Correlated Systems: An Introduction to Sachdev-Ye-Kitaev Model
Rishabh Jha
The Sachdev-Ye-Kitaev (SYK) model provides an analytically tractable framework for exotic strongly correlated phases where conventional paradigms like Landau's Fermi liquid theory…
CADRE: Stable, Parameter Efficient Adaptation of Medical Vision Language Models with Bounded Forgetting and Prior Drift
Amrita Singh, Rishabh Jha, Prashanna Chudal
Medical vision-language models (VLMs) such as BiomedCLIP generalize broadly, but adapting them to a clinical service is as much a safety problem as an accuracy one. Updating a depl…
Long-Range Pairing in the Kitaev Model: Krylov Subspace Signatures
Rishabh Jha, Heiko Georg Menzler
Krylov subspace methods quantify operator growth in quantum many-body systems through Lanczos coefficients that encode how operators spread under time evolution. Although these dia…
Many-Body Protection of Topological Edge Memory in Strong Interacting Quenches
Yuxiao Hang, Stephan Haas, Rishabh Jha
Quantum quenches drive edge states far from equilibrium, yet whether the memory of a topological initial state survives in a non-integrable, interacting system has remained largely…
Geometric Decoherence Time in Lindbladian Dynamics
Rishabh Jha, Stephan Haas, Abhinav Prem
The onset of decoherence in open many-body systems lacks a dynamical timescale grounded in the loss of bipartite entanglement. Here, we introduce the $tim…