514 citations · 884 across the 5 of their papers we have counts for
5 papers
Dark Excitons in Carbon Nanotubes
Eric Chang, Deborah Prezzi, Alice Ruini +1
We investigate the lowest many-body excited states in carbon nanotubes by means of ab initio calculations. On the basis of these calculations and an additional theoretical analysis…
Exciton binding energies in carbon nanotubes from two-photon photoluminescence
J. Maultzsch, R. Pomraenke, S. Reich +7
One- and two-photon luminescence excitation spectroscopy showed a series of distinct excitonic states in single-walled carbon nanotubes. The energy splitting between one- and two-p…
Dynamical Matrices and Interatomic-Force Constants from Wave-Commensurate Supercells
Hadley M. Lawler, Eric K. Chang, Eric L. Shirley
We apply standard, first-principles calculations to a complete treatment of lattice dynamics in the harmonic approximation. The algorithm makes use of the straightforward ``frozen-…
Excitons in carbon nanotubes: an ab initio symmetry-based approach
Eric Chang, Giovanni Bussi, Alice Ruini +1
The optical absorption spectrum of the carbon (4,2) nanotube is computed using an ab-initio many-body approach which takes into account excitonic effects. We develop a new method i…
Coupling of Nonlocal Potentials to Electromagnetic Fields
Sohrab Ismail-Beigi, Eric K. Chang, Steven G. Louie
Nonlocal Hamiltonians are used widely in first-principles quantum calculations; the nonlocality stems from eliminating undesired degrees of freedom, e.g. core electrons. To date, a…