2,091 Citations
Hund and anti-Hund rules in circular molecules
- Physics, Chemistry
- 2017
We study the validity of Hund's first rule for the spin multiplicity in circular molecules - made of real or artificial atoms such as quantum dots - by considering a perturbative approach in the…
Collective charge excitations of strongly correlated electrons, vertex corrections, and gauge invariance
- Physics
- 2014
We consider the collective, long-wavelength charge excitations in correlated media in presence of short- and long-range forces. As an example for the case of a short-range interaction, we examine the…
Theoretical Methods in the Non-Equilibrium Quantum Mechanics of Many Bodies
- Physics
- 2011
Abstract : A toolbox of theoretical methods pertinent to the study of non-equilibrium many-body quantum mechanics is presented with an eye to specific applications in cold atoms systems and solids.…
Petascale computing opens new vistas for quantum Monte
- Physics
- 2011
For many kinds of problem the accuracy of quantum Monte Carlo (QMC) is much better than that of density functional theory (DFT), and its scaling with number of atoms is much more favourable than that…
Interactions in Quantum Fluids
- Physics
- 2010
In these notes I review the basic concepts of the effects of interactions on quantum particles. I focuss here mostly on the case of fermions, but several aspects of interacting bosons are mentioned…
A pr 2 00 9 Valley dependent many-body effects in 2 D semiconductors
- Physics
- 2009
We calculate the valley degeneracy (gv) dependence of the many-body renormalization of quasiparticle properties in multivalley 2D semiconductor structures due to the Coulomb interaction between the…
Charge Transport in Organic Crystals
- Physics
- 2009
The understanding of charge transport is one of the central goals in the research on semiconducting crystals. For organic crystals this is particularly complicated due to the strength of the…
Low temperature scanning tunneling microscopy and spectroscopy: A study on charge density waves and vortex dynamics
- Physics
- 2009
Title of dissertation: Low Temperature Scanning Tunneling Microscopy and Spectroscopy: A Study On Charge Density Waves and Vortex Dynamics Hui Wang, Doctor of Philosophy, 2009 Dissertation directed…
On the break in the single-particle energy dispersions and the ‘universal’ nodal Fermi velocity in the high-temperature copper oxide superconductors
- Physics
- 2004
Recent data from angle-resolved photoemission experiments published by Zhou et al. [Nature, 423, 398 (2003)] concerning a number of hole-doped copper-oxide-based high-temperature superconductors…
Stability conditions for a large anharmonic bipolaron
- PhysicsPhysical Review B
- 2023
A large polaron is a quasiparticle that consists of a nearly free electron interacting with the phonons of a material, whose lattice parameters are much smaller than the polaron scale. The…