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hep-th2025
Fermionic S-matrix and cosmological correlators: T-violation at O(H)
Aman Goyal, Aneek Jana, Swapnanil Mandal +1
We study the Bunch-Davies (BD) and Unruh-de Witt (UdW) de Sitter S-matrices in the presence of spin- fermions. Building on recent work, this enables us to correlate the de Sit…
hep-th2024
Generalization of Modular Spread Complexity for Non-Hermitian Density Matrices
Aneek Jana, Maitri Ganguli
In this work we generalize the concept of modular spread complexity to the cases where the reduced density matrix is non-Hermitian. This notion of complexity and associated Lanczos…
hep-th2024★ 1 cited
Quantum chaos and complexity from string scattering amplitudes
Aranya Bhattacharya, Aneek Jana
We introduce Krylov spread complexity in the context of black hole scattering by studying highly excited string states (HESS). Krylov complexity characterizes chaos by quantifying…