Year: 2019
Type: article
Abstract: Effective models featuring hard local constraints describe several strongly correlated electronic systems that exhibit interesting and exotic behavior from emergent gauge symmetries to deconfined criticality and topological order. A systematic field-theoretic approach to such models remained elusive to date, with effective theories constructed from physical insight. Here, the authors propose a general large-$S$ path-integral formalism to obtain field theories for hard constrained Hamiltonians. They demonstrate its potential by performing a systematic study of quantum dimer models, including such on nonbipartite lattices.
Authors: Attila Szabó, Garry Goldstein, Claudio Castelnovo, Alexei M. Tsvelik
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G241279073, G3421113998, G3481514107, Testing Quantumness: From Artificial Quantum Arrays to Lattice Spin Models and Spin Liquids, G4803412723, G4992094270, Emergence and out-of-equilibrium phenomena in frustrated magnets on pyrochlore lattices, Cambridge Theory of Condensed Matter Group -Critical Mass Grant, Electronic structure and dynamics in quasi-disordered systems, from quasiperiodic potentials to quantum spin ice
OpenAlex ID: W2942568419