271 citations · 2.4k across the 29 of their papers we have counts for
5 papers · 1 filter
Finite-Size Scaling Exponents in the Dicke Model
J. Vidal, S. Dusuel
We consider the finite-size corrections in the Dicke model and determine the scaling exponents at the critical point for several quantities such as the ground state energy or the g…
Continuous unitary transformations in two-level boson systems
S. Dusuel, J. Vidal, J. M. Arias +2
Two-level boson systems displaying a quantum phase transition from a spherical (symmetric) to a deformed (broken) phase are studied. A formalism to diagonalize Hamiltonians with $O…
Quantum wire networks with local Z2 symmetry
K. Kazymyrenko, S. Dusuel, B. Doucot
For a large class of networks made of connected loops, in the presence of an external magnetic field of half flux quantum per loop, we show the existence of a large local symmetry…
Finite-size scaling exponents in the interacting boson model
S. Dusuel, J. Vidal, J. M. Arias +2
We investigate the finite-size scaling exponents for the critical point at the shape phase transition from U(5) (spherical) to O(6) (deformed -unstable) dynamical symmetries of…
Finite-size scaling exponents and entanglement in the two-level BCS model
S. Dusuel, J. Vidal
We analyze the finite-size properties of the two-level BCS model. Using the continuous unitary transformation technique, we show that nontrivial scaling exponents arise at the quan…