Turbulence evolution in MHD plasmas

Turbulence in the interstellar medium has been an active field of research in the last decade. Numerical simulations are the tool of choice in most cases. But while there are a number of simulations on the market some questions have not been answered finally. In this paper we are going to examine the influence of compressible and incompressible driving on the evolution of turbulent spectra in a number of possible interstellar medium scenarios. We conclude that the driving not only has an influence on the ratio of compressible to incompressible component but also on the anisotropy of turbulence.Comment: Accepted for publication in Journal of Plasma Physic

A Trip to the Beginning of the Universe with the Large Hadron Collider

Slides from a presentation given at the Science Forum of the University of Tennessee. It discusses the physics program of the Large Hadron Collider in general terms. Serves as introductory material to the field

Diamond Detector Beam Tests

Photos of Application and Tests of diamond pixel detectors at UTK

An alternative approach to efficient simulation of micro/nanoscale phonon transport

Starting from the recently proposed energy-based deviational formulation for solving the Boltzmann equation [J.-P. Peraud and N. G. Hadjiconstantinou, Phys. Rev. B 84, 2011], which provides significant computational speedup compared to standard Monte Carlo methods for small deviations from equilibrium, we show that additional computational benefits are possible in the limit that the governing equation can be linearized. The proposed method exploits the observation that under linearized conditions (small temperature differences) the trajectories of individual deviational particles can be decoupled and thus simulated independently; this leads to a particularly simple and efficient algorithm for simulating steady and transient problems in arbitrary three-dimensional geometries, without introducing any additional approximation.Comment: 4 pages, 2 figure

High Energy Particle Physics at the University of Tennessee

Talk given at the Governor\u27s school in 2009. It is an introduction to particle physics

Studies of Mono-Crystalline CVD Diamond Pixel Detectors

Proceedings of a presentation at the International Pixel 2010 Conference, Grindelwald, Switzerland

Observation of the first Bs--\u3e J/Psi Phi Event in CMS

Presentation for the International Conference on High Energy Physics, July 2010, Paris, France. The first reconstructed decay of a Bs particle in CMS that is relevant for finding information to explain the matter anti-matter asymmetry in the Universe

Diamond Particle Detectors

Poster presented at the IEEE Conference 2010 in Knoxville. It shows results for charged particle tracking using single-crystalline diamond pixel detectors