3 papers
hep-th2026
Stabilizer complexity and the Python's lunch
Abhirup Bhattacharya, Jatin Narde, Onkar Parrikar +1
In this note, we study the stabilizer complexity of the reduced density matrix corresponding to one side of a partially entangled thermal (PET) state with fixed energy boundary con…
hep-th2026
Modular Witten Diagrams and Quantum Extremality
Abhirup Bhattacharya, Onkar Parrikar
We study entanglement entropy for ball-shaped regions in excited states of holographic conformal field theories. The excited states are prepared by the Euclidean path integral in t…
hep-th2026
Covariant phase space and the semi-classical Einstein equation
Abhirup Bhattacharya, Onkar Parrikar
The covariant phase space formalism in general relativity is a covariant method for constructing the symplectic two-form, Hamiltonian and other conserved charges on the phase space…