103 citations · 381 across the 17 of their papers we have counts for
17 papers
Variational wave functions for frustrated magnetic models
Federico Becca, Luca Capriotti, Alberto Parola +1
Variational wave functions containing electronic pairing and suppressed charge fluctuations (i.e., projected BCS states) have been proposed as the paradigm for disordered magnetic…
Exotic gapless spectrum induced by frustration in quantum antiferromagnets
Federico Becca, Luca Capriotti, Alberto Parola +1
We show strong numerical evidence in favor of an unexpected virtually gapless spectrum, with edge states localized at the boundaries, in frustrated spin-1/2 antiferromagnetic ladde…
The resonating valence bond wave functions in quantum antiferromagnets
Alberto Parola, Sandro Sorella, Federico Becca +1
Projected-BCS wave functions have been proposed as the paradigm for the understanding of disordered spin states (spin liquids). Here we investigate the properties of these wave fun…
Quantum Heisenberg antiferromagnets: a survey of the activity in Firenze
Umberto Balucani, Luca Capriotti, Alessandro Cuccoli +5
Over the years the research group in Firenze has produced a number of theoretical results concerning the statistical mechanics of quantum antiferromagnetic models, which range from…
Dissipation-driven phase transition in 2D Josephson arrays
Luca Capriotti, Alessandro Cuccoli, Andrea Fubini +2
We analyze the interplay of dissipative and quantum effects in the proximity of a quantum phase transition. The prototypical system is a resistively shunted two-dimensional Josephs…
Low temperature broken symmetry phases of spiral antiferromagnets
Luca Capriotti, Subir Sachdev
We study Heisenberg antiferromagnets with nearest- (J1) and third- (J3) neighbor exchange on the square lattice. In the limit of large spin S, there is a zero temperature (T) Lifsh…