Quantum chaos in weakly disordered graphene

Quantum Chaos: Lessons from Disordered Metals

Luttinger-liquid behavior in weakly disordered quantum wires.

We have measured the temperature dependence of the conductance in long V-groove quantum wires fabricated in GaAs/AlGaAs heterostructures. Our data are consistent with recent theories developed within the framework of the Luttinger-liquid model, in the limit of weakly disordered wires. We show that, for the relatively low level of disorder in our quantum wires, the value of the interaction param...

Intrasubband plasmons in weakly disordered array of quantum wires

The paper deals with the theoretical investigation of plasmons in weakly disordered array of quantum wires, consisting of finite number of quantum wires, arranged at an equal distance from each other. The array of quantum wires is characterized by the fact that the density of electrons of one " defect " quantum wire was different from that of other quantum wires. At the same time it is assumed ...

Quantum chaos, delocalization, and entanglement in disordered Heisenberg models.

We investigate disordered one- and two-dimensional Heisenberg spin lattices across the transition from integrability to quantum chaos from both statistical many-body and quantum-information perspectives. Special emphasis is devoted to quantitatively exploring the interplay between eigenvector statistics, delocalization, and entanglement in the presence of nontrivial symmetries. The implication ...

Insulating to relativistic quantum Hall transition in disordered graphene

CNRS Laboratoire de Photonique et de Nanostructures, Route de Nozay, 91460 Marcoussis, France, LPMC, Département de Physique, Faculté des Sciences de Tunis, Université Tunis-Manar, Campus Universitaire, 1060 Tunis, Tunisia, Laboratoire National de Métrologie et d’Essais, 29 Avenue Roger Hennequin, 78197 Trappes, France, Laboratoire de Physique des Solides, CNRS UMR 8502, Université Paris-Sud, 9...