Author

M. A. Rajabpour

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Preprint Aug 2026

Microscopic Origin of the Shannon Renyi Boundary Phase in the Critical Ising Chain

Shannon--R\'enyi entropies probe the full measurement distribution of a quantum many-body state, but their microscopic evaluation remains difficult even in free-fermion systems. We show that the Born distribution of the critical transverse-field Ising chain is exactly the parity boundary of a weak inverse-square classi...

M. A. Rajabpour · 1 citation

Preprint Oct 2026

A Single Conformal Coordinate Decodes Outcome-Resolved Measurement-Induced Entanglement

A local measurement of a critical many-body state produces exponentially many microscopic outcomes, each defining a different conditioned quantum state. We ask how much information from one such outcome is actually needed to predict the entanglement that remains between two unmeasured regions. We show that, in critical...

Reyhaneh Khasseh, M. A. Rajabpour · 0 citations

Preprint Aug 2026

The Pauli Probability Spectrum Carries the Pure-State Quantum Fisher Metric

How a quantum state responds to small parameter changes underlies state distinguishability, many-body response, and metrological sensitivity. The Pauli probability spectrum provides a natural description of many-body quantum states, but it is not evident how much of this response survives in the corresponding classical...

E. A. Ramirez Trino, M. A. Rajabpour · 0 citations