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G. Biswas

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Preprint Aug 2026

Reduced State Stabilizer R\'enyi Entropy as a Probe of Quantum Phase Transitions in Frustrated J_1-J_2 Spin Models

We investigate whether the second-order purity-corrected stabilizer R\'enyi entropy (SRE) of reduced two-qubit density matrices can serve as a reliable local indicator of quantum phase transitions (QPTs) in frustrated quantum spin systems. We consider the one-dimensional isotropic \(J_1-J_2\) Heisenberg model, the one-...

G. Biswas, Santanu Sarkar, Jun-Yi Wu et al. · 0 citations

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