61 citations · 255 across the 11 of their papers we have counts for
13 papers
Solitary waves and vortices in a Nonlinear Schrödinger equation with ponderomotive nonlinearity
D. K. Campbell, J. Cuevas-Maraver, R. Goh +1
In the present work we revisit a ponderomotive nonlinearity model used to examine self-trapped laser beams in plasma. Upon briefly considering the exact stationary 1D solutions of…
Seeking the Casimir Energy
David K. Campbell, Ian Bouche, Abhishek Som +1
Since its first description in 1948, the Casimir effect has been studied extensively. Standard arguments for its existence hinge on the elimination of certain modes of the electrom…
ϕ^4 Solitary Waves in a Parabolic Potential: Existence, Stability, and Collisional Dynamics
R. M. Ross, P. G. Kevrekidis, D. K. Campbell +2
We explore a ϕ^4 model with an added external parabolic potential term. This term dramatically alters the spectral properties of the system. We identify single and multiple kink so…
Effects of finite-range interactions on the one-electron spectral properties of one-dimensional metals: Application to Bi/InSb(001)
J. M. P. Carmelo, T. Cadez, Y. Ohtsubo +2
We study the one-electron spectral properties of one-dimensional interacting electron systems in which the interactions have finite range. We employ a mobile quantum impurity schem…
Dominant Superconducting Fluctuations in the One-Dimensional Extended Holstein-Extended Hubbard model
Ka-Ming Tam, Shan-Wen Tsai, D. K. Campbell
The search for realistic one-dimensional (1D) models that exhibit dominant superconducting (SC) fluctuations effects has a long history. In these 1D systems, the effects of commens…
On the Validity of the Tomonaga Luttinger Liquid Relations for the One-dimensional Holstein Model
Ka-Ming Tam, S. -W. Tsai, D. K. Campbell
For the one-dimensional Holstein model, we show that the relations among the scaling exponents of various correlation functions of the Tomonaga Luttinger liquid (LL), while valid i…