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Author

R. Scalettar

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2 papers indexed here

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Review Sep 2026

Sign problem and criticality in world-line quantum Monte Carlo methods

Discussions of the sign problem usually focus on its role as the primary limitation of the applicability of quantum Monte Carlo methods for reliably solving quantum many-body models. Its behavior as a function of spatial lattice size, doping, temperature, and interaction strengths has been carefully characterized withi...

R. Mondaini, R. Scalettar · 0 citations
Preprint Sep 2026

Dynamical signatures of Hardcore-Boson Supersolid on the Triangular Lattice

We investigate the dynamical signatures of the supersolid phase in the triangular-lattice hardcore Bose-Hubbard model via large-scale quantum Monte Carlo simulations and linear spin-wave theory. We reveal a distinct momentum-space separation in the spectral weights. The transverse spectrum shows gapless Goldstone modes...

Xingchuan Zhu, Qing-Yang Guo, Jun-Song Sun et al. · 0 citations

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