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Nishan Ranabhat

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Preprint Aug 2026

Dynamical signatures of deconfined spinons in dimerized sawtooth chains

We study the ground-state properties and dynamical response of the Heisenberg model on the sawtooth chain in and away from the exactly solvable valence-bond-solid (VBS) point. We employ U(1)-symmetric density-matrix renormalization group (DMRG) and time-dependent variational principle (TDVP) methods to compute equilibr...

Nishan Ranabhat, Brandon B. Le, Seung-Hun Lee et al. · 0 citations

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