299 citations · 671 across the 6 of their papers we have counts for
14 papers
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…
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 of the Lipkin-Meshkov-Glick Model
S. Dusuel, J. Vidal
We study the ground state properties of the critical Lipkin-Meshkov-Glick model. Using the Holstein-Primakoff boson representation, and the continuous unitary transformation techni…
Entanglement in a second order quantum phase transition
J. Vidal, G. Palacios, R. Mosseri
We consider a system of mutually interacting spin 1/2 embedded in a transverse magnetic field which undergo a second order quantum phase transition. We analyze the entanglement pro…
Quantum dynamics in high codimension tilings: from quasiperiodicity to disorder
J. Vidal, N. Destainville, R. Mosseri
We analyze the spreading of wavepackets in two-dimensional quasiperiodic and random tilings as a function of their codimension, i.e. of their topological complexity. In the quasipe…
Quasiperiodic tilings under magnetic field
J. Vidal, R. Mosseri
We study the electronic properties of a two-dimensional quasiperiodic tiling, the isometric generalized Rauzy tiling, embedded in a magnetic field. Its energy spectrum is computed…