Events

monthweekdaylist
«May 17, 2012 - June 16, 2012»
05 / 17
Start: 12:00
End: 13:30

Prof. Daniel Prober


Departments of Applied Physics and Physics, Yale University

Danciger B building, Seminar room

We have studied the electron energy loss processes in individual single-walled cnts of very high quality. (1) We are currently conducting studies of Terahertz absorption to find Plasmon spatial resonances of an individual swcnt, to verify the predictions for a Luttinger liquid.(2) We report mechanisms of energy loss and far-infrared absorption. Analogous studies of electron-phonon scattering in graphene have only been reported at high temperatures, or at very high electron densities, ≥ 10-13 /cm2. We discuss the prospects for such studies of graphene at lower temperatures and densities.
05 / 18
05 / 19
05 / 20
05 / 21
Start: 12:00
End: 13:30

Prof. Dr. Matthias Staudacher


Humboldt University of Berlin

Levin building, Lecture Hall No. 8

The discovery of integrable structures in the context of the AdS/CFT correspondence promises a breakthrough towards the exact solution of a class of four-dimensiona​l Yang-Mills quantum field theories. The methodology and the results used in this research field are of great interest for both theoretical physics as well as modern mathematics. I will first muse on the mathematical aspects of exact methods for quantum field theories, and then discuss the status quo of integrability in AdS/CFT.

Start: 14:00
End: 15:30

Mrs. Liat Dovrat


Racah Institute of Physics, Hebrew University of Jerusalem

Danciger B building, Seminar room

Recent developments in photon-number resolving detectors have opened the door to the implementation of a wide range of applications in quantum optics. One of the most prominent advantages of number-resolving detectors is the ability to directly measure the photon-number statistics of an optical quantum state.

We have built a state-of-the-art detection setup, which incorporates a Silicon Photomultiplier as a photon-number resolving detector. Our setup offers high photon-number resolution, the discrimination of a high number of photons, and enables real time analysis. Using our system, we study the photon-number statistics of the optical process of parametric down-conversion (PDC).

05 / 22
05 / 23
Start: 12:00
End: 13:30

Mr. Uri London


Racah Institute of Physics, Hebrew University of Jerusalem

Danciger B building, Seminar room

The dynamics of a quantum particle in a periodic environment is in many ways similar to that of a free particle, but when subject to a uniform force it does not accelerate indefinitely but performs periodic motion. This phenomenon is known as Bloch oscillations, and has been observed in semiconducting lattices, optical latticesj, wave guide arrays and other systems.

One of the experimental applications of cold-atom Bloch oscillations has been force measurements, in particular of the acceleration of gravity. This application is based on a precise knowledge of the periodic potential and a large number of oscillation that enable an accurate measurement of the period.

05 / 24
Start: 12:00
End: 13:30

Prof. Allen M. Goldman


School of Physics and Astronomy, University of Minnesota

Danciger B building, Seminar room

Ultrathin YBa2Cu3O7−x (YBCO) films were grown on SrTiO3 (STO) substrates using a high-pressure oxygen sputtering system. The films were placed in a field effect transistor configuration to study the control of superconductivity by electrostatic charging. While devices using SrTiO3 as the gate dielectric induced relatively modest Tc shifts, a clear transition between superconducting and insulating behavior was realized using the ionic liquid DEME-TFSI. Employing a finite size scaling analysis, curves of resistance versus temperature, R(T), over the temperature range from 6K to 22K were found to collapse onto a single function, which suggests the presence of a quantum critical point. However the scaling failed at the lowest temperatures indicating the possible presence of an additional phase between the superconducting and insulating regimes. When carriers were added, an unexpected two-step mechanism for electrostatic doping was revealed. Also Hall effect measurements exhibited anomalous features which suggest that there is an electronic phase transition at a charge concentration near optimal doping.
05 / 25
05 / 26
05 / 27
05 / 28
Start: 12:00
End: 13:30

Prof. Eyal Mishani


Head, Cyclotron radiochemistry unit, Hadassah Hebrew University Hospital

Levin building, Lecture Hall No. 8

This presentation will start with a brief introduction on nuclear medicine and in particular positron emission tomography (PET) molecular imaging, including examples of applications in oncology with the gold standard PET agent, fluorine-18 FDG, and with fluorine-18 fluoride and carbon-11 choline. The ongoing research in the field of PET myocardial perfusion imaging which focuses on the development of novel carbon-11 labeled ammonium salts for the diagnosis of myocardial artery disease will be described. In the field of oncology, the current status on the development of novel PET imaging agents labeled with fluorine-18, carbon-11, and iodine-124 targeting the epidermal growth factor receptor (EGFR) in cancer will also be described.

05 / 29
Start: 12:30
End: 13:30

Mr. Sivan Ginzburg


Racah Institute o Physics, Hebrew University of Jerusalem

Kaplun building, Room No. 200

Additional details of the upcoming Astrophysics' seminars can be found on the following link.

05 / 30
05 / 31
06 / 1
06 / 2
06 / 3
06 / 4
Start: 12:00
End: 13:30

Prof. Jacob Klein


Department of Materials & Interfaces, Weizmann Institute of Science

Levin building, Lecture Hall No. 8
06 / 5
Start: 12:30
End: 14:00

Mr. Benny Trakhtenbrot


School of Physics and Astronomy, Tel-Aviv University

Kaplun building, Room No. 200

Additional details of the upcoming Astrophysics' seminars can be found on the following link.

06 / 6
06 / 7
06 / 8
06 / 9
06 / 10
06 / 11
Start: 12:00
End: 13:30

Prof. Christopher Jarzynski


Department of Chemistry & Biochemistry, University of Maryland

Levin building, Lecture Hall No. 8
06 / 12
Start: 12:30
End: 14:00

Prof. Nahum Arav


Department of Physics, Virginia Tech

Kaplun building, Room No. 200

Additional details of the upcoming Astrophysics' seminars can be found on the following link.

06 / 13
06 / 14
06 / 15
06 / 16