מחקר

HIGH ENERGY ASTROPHYSICS

Dafne Guetta
We study the physics and the redshift distribution of Gamma-Ray Bursts (GRBs) , bursts of 0.1-1 MeV photons lasting for few seconds. These are very energetic sources that can be used to probe the star formation rate. We study the high energy neutrino and gravitational wave emission from GRBs
and other astrophysical sources like microquasars. We are interested in understanding what are the sources of ultra high energy cosmic rays and if hadrons are present in the jet of these sources.
 

SUPERCONDUCTIVITY (THEORETICAL)

Jorge Berger
We study geometric effects on mesoscopic superconducting samples, mainly rings, by means of the Ginzbug-Landau model and generalizations of it. Special attention is given to thermal fluctuations,
which are studied by means of appropriate Langevin functions.

QUANTUM CONTROL

Shimshon Kallush
Quantum Control (QC) is dedicated to driving objectives into a given goal in the microscopic world, which is governed by quantum mechanics. Our research interests within this area range from fundamental research to theoretically and experimentally applicative sides of the area. We deal with the basic questions of applicability of QC, like the sensitivity of a given control solution on the various parameters of the system. On the applicative branch of the research we explore numerical methods for computing numerically exact quantum dynamics under general condition, to serve as a tool for understading and predicting the ability to control quantum systems. We are also in tight connection with the experimental group of Prof. Phillip Gould in the University of Connecticut. The collaboration seeks for ways to apply quantum control methods to create ultra cold (micro Kelvin) molecules with the aid of light pulses that fit the typical dynamics of these species, i.e., in the nanosecond time scales.

HIGH TEMPERATURE SUPERCONDUCTIVITY (EXPERIMENTAL)

Meni Shay
The main goal of the research is to check the hypothesis that there is a linear relation between the maximal transition temperature to the superconducting state and the magnetic coupling between neighboring unit cells in High Temperatures Superconductors. The tool that we use to probe the magnetic coupling is two-magnon Raman scattering. In addition the phase diagram of the samples is being studied by means of muon spin rotation, transport and magnetizations measurements. The samples are high quality single crystals, grown using an optical image zone furnace at the Technion. The crystals are unique and allow for several other different experimental investigations such as angle resolved photoemission spectroscopy, inelastic neutron scattering and more.

Light, molecules and more

Atef Shalabney

In our lab, we explore  the interaction between light and matter in confined regions in space. We are interested in a diverse set of problems from the weak light-mater coupling regime to the strong coupling limit. In the weak-coupling regime, we investigate the enhancement of optical phenomena such as refractive index sensing, enhanced fluorescence and enhanced Raman scattering. In the strong coupling regime, on the other hand, we are interested in altering the material properties by light. Our activity involves the application of different spectroscopic method to probe the interaction between light (from the visible to the infrared range) and molecular complexes.