3 papers
hep-lat2024
Gauging a superposition of fermionic Gaussian projected entangled pair states to get lattice gauge theory eigenstates
Gertian Roose, Erez Zohar
Gauged fermionic projected entangled pair states (GFPEPS) and their Gaussian counterpart (GGFPEPS) are a novel type of lattice gauge theory Ansatz state that combine ideas from the…
hep-lat2020
Lattice regularisation and entanglement structure of the Gross-Neveu model
Gertian Roose, Nick Bultinck, Laurens Vanderstraeten +3
We construct a Hamiltonian lattice regularisation of the -flavour Gross-Neveu model that manifestly respects the full symmetry, preventing the appearance of any…
cond-mat.str-el2018
Anomalous domain wall condensation in a modified Ising chain
Gertian Roose, Laurens Vanderstraeten, Jutho Haegeman +1
We construct a one-dimensional local spin Hamiltonian with an intrinsically non-local, and therefore anomalous, global symmetry. The model is closely related to the…