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M. Ostilli

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Preprint Aug 2026

Rigorous existence and location of quantum phase transitions in lattice Hamiltonian systems

We extend the analysis of the class of quantum phase transitions (QPTs) that can be interpreted as condensations in state space, first introduced in [M. Ostilli and C. Presilla, J. Phys. A 54, 055005 (2021)], by generalizing the arguments of [M. Ostilli and C. Presilla, Phys. Rev. Lett. 127, 040601 (2021)] to prove the...

M. Ostilli, C. Presilla · 0 citations

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