536 citations · 1.2k across the 8 of their papers we have counts for
9 papers
Finite-Size Effects in the Absorption Spectra of a Single-Wall Carbon Nanotube
Jaime Silva, Micael J T Oliveira, Senentxu Lanceros-Mendez +1
The determination of the optical spectrum of single-wall carbon nanotubes (SWCNTs) is essential for the development of opto-electronic components and sensors with application in ma…
Real-space grids and the Octopus code as tools for the development of new simulation approaches for electronic systems
Xavier Andrade, David A. Strubbe, Umberto De Giovannini +13
Real-space grids are a powerful alternative for the simulation of electronic systems. One of the main advantages of the approach is the flexibility and simplicity of working direct…
Optical and magnetic excitations of metal-encapsulating Si cages: A systematic study by time-dependent density functional theory
Micael J. T. Oliveira, Paulo V. C. Medeiros, José R. F. Sousa +2
Systematic study of the optical and magnetic excitations of twelve MSi and four MSi transition metal encapsulating Si cages has been carried out by employing real tim…
Extremal Surfaces in Asymptotically AdS Charged Boson Stars Backgrounds
Fernando Nogueira
In this paper, inspired by the holographic dual of the entanglement entropy, we consider the behaviour of extremal, codimension two, spacelike surfaces in the background of three a…
Rindler Quantum Gravity
Bartlomiej Czech, Joanna L. Karczmarek, Fernando Nogueira +1
In this note, we explain how asymptotically globally AdS spacetimes can be given an alternate dual description as entangled states of a pair of hyperbolic space CFTs, which are ass…
The Gravity Dual of a Density Matrix
Bartlomiej Czech, Joanna L. Karczmarek, Fernando Nogueira +1
For a state in a quantum field theory on some spacetime, we can associate a density matrix to any subset of a given spacelike slice by tracing out the remaining degrees of freedom.…
Density versus chemical potential in holographic field theories
Fernando Nogueira, Jared B. Stang
We study the relationship between charge density (ρ) and chemical potential (μ) for an array of Lorentz invariant 3 + 1 dimensional holographic field theories with the minimal stru…
Towards A Holographic Model of Color Superconductivity
Pallab Basu, Fernando Nogueira, Moshe Rozali +2
In this note, we discuss the basic elements that should appear in a gravitational system dual to a confining gauge theory displaying color superconductivity at large baryon density…
Bioheterojunction Effect on Fluorescence Origin and Efficiency Improvement of Firefly Chromophores
Duanjun Cai, Miguel A. L. Marques, Bruce F. Milne +1
We propose the heterojunction effect in the analysis of the fluorescence mechanism of the firefly chromophore. Following this analysis, and with respect to the HOMO-LUMO gap alignm…