4 papers
Unconstrained compact lattice QED coupled to phonons: Gauss sectors, orthogonal semimetal, and deconfined criticality
João C. Inácio, Fakher F. Assaad
Gauge theoretic descriptions of 2D quantum magnets are defined on a restricted physical Hilbert space by imposing Gauss's law. In this work, we study an unconstrained compact latti…
Probing metal-insulator criticality with cavity photons
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 O(3) Gross-Neveu universality class. We couple thi…
Dynamical magnetotropic susceptibility as a new probe of Kitaev materials and beyond
João C. Inácio, J. Schwab, G. Rakhmanova +8
The magnetotropic susceptibility, , probes ultra-low-frequency uniform () spin and charge fluctuations in a crystal mounted on an oscillating cantilever: it…
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…