346 citations · 1.2k across the 26 of their papers we have counts for
7 papers · 1 filter
Exact Diagonalization of Heisenberg SU(N) models
Pierre Nataf, Frederic Mila
Building on advanced results on permutations, we show that it is possible to construct, for each irreducible representation of SU(N), an orthonormal basis labelled by the set of {\…
Superradiant phase transitions with three-level systems
Alexandre Baksic, Pierre Nataf, Cristiano Ciuti
We determine the phase diagram of identical three-level systems interacting with a single photonic mode in the thermodynamical limit () by accounting for the so-c…
Heisenberg Uncertainty Principle as Probe of Entanglement Entropy: Application to Superradiant Quantum Phase Transitions
Pierre Nataf, Mehmet Dogan, Karyn Le Hur
Quantum phase transitions are often embodied by the critical behavior of purely quantum quantities such as entanglement or quantum fluctuations. In critical regions, we underline a…
Comment on "Superradiant Phase Transitions and the Standard Description of Circuit QED"
Cristiano Ciuti, Pierre Nataf
A Comment on the Letter by O. Viehmann, J. von Delft, and F. Marquardt [Phys. Rev. Lett. {\bf 107}, 113602 (2011)].
Double symmetry breaking and 2D quantum phase diagram in spin-boson systems
Pierre Nataf, Alexandre Baksic, Cristiano Ciuti
The quantum ground state properties of two independent chains of spins (two-levels systems) interacting with the same bosonic field are theoretically investigated. Each chain is co…
Protected quantum computation with multiple resonators in ultrastrong coupling circuit QED
Pierre Nataf, Cristiano Ciuti
We investigate theoretically the dynamical behavior of a qubit obtained with the two ground eigenstates of an ultrastrong coupling circuit-QED system consisting of a finite number…