3 papers
cond-mat.str-el2026
Mott transition of photons: quantum Monte Carlo study of Gross-Neveu criticality in a cavity
João C. Inácio, Natanael C. Costa, Fakher F. Assaad
The Hubbard model on the honeycomb lattice is a pristine realisation of a semimetal-to-insulator Mott transition belonging to the Gross-Neveu O(3) universality class. We couple thi…
cond-mat.str-el2026
Dynamical magnetotropic susceptibility as a new probe of Kitaev materials and beyond
João C. Inácio, J. Schwab, G. Rakhmanova +7
The magnetotropic susceptibility probes ultra-low-frequency uniform fluctuations. For a crystal mounted on an oscillating cantilever in a magnetic field, it is defined as t…
cond-mat.str-el2025
Finite temperature fermion Monte Carlo simulations of frustrated spin-Peierls systems
João C. Inácio, Jeroen van den Brink, Fakher F. Assaad +1
The Abrikosov fermion representation of the spin-1/2 degree of freedom allows for auxiliary-field quantum Monte Carlo simulations of frustrated spin systems. This approach provides…