211 citations · 3.3k across the 133 of their papers we have counts for
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Towards a phase diagram of the topologically frustrated XY chain
Daniel Sacco Shaikh, Alberto Giuseppe Catalano, Fabio Cavaliere +3
Landau theory's implicit assumption that microscopic details cannot affect the system's phases has been challenged only recently in systems such as antiferromagnetic quantum spin c…
An exact local mapping from clock-spins to fermions
Simone Traverso, Christoph Fleckenstein, Maura Sassetti +1
Clock-spin models are attracting great interest, due to both their rich phase diagram and their connection to parafermions. In this context, we derive an exact local mapping from c…
Quantum Phase Transition of Many Interacting Spins Coupled to a Bosonic Bath: static and dynamical properties
G. De Filippis, A. de Candia, A. S. Mishchenko +7
By using worldline and diagrammatic quantum Monte Carlo techniques, matrix product state and a variational approach à la Feynman, we investigate the equilibrium properties and rela…
Quantum Phase Transitions in the Spin-Boson model: MonteCarlo Method vs Variational Approach a la Feynman
G. De Filippis, A. de Candia, L. M. Cangemi +3
The effectiveness of the variational approach a la Feynman is proved in the spin-boson model, i.e. the simplest realization of the Caldeira-Leggett model able to reveal the quantum…
Effective metal-insulator non-equilibrium quantum phase transition
S. Porta, N. Traverso Ziani, D. M. Kennes +3
We consider the steady state behavior of observables in the Su-Schrieffer-Heeger model and in the one dimensional transverse field quantum Ising model after a sudden quantum quench…