Seminari & Eventi

The PRAE Multidisciplinary Project at Orsay

Dr. Eric Voutier
IN2P3, Orsay, Paris
When: Tuesday, February 19, 2019 - 14:00
Where: Dipartimento di Fisica - Aula 500


Seminario generale INFN/DIFI

The PRAE (Platform for Research and Applications with Electrons) facility under construction in the Orsay campus of the Paris-Sud University, is a multidisciplinary platform based on a high-performance new generation linear accelerator delivering a pulsed electron beam in the energy range 30-70 MeV, upgradable to 140 MeV. This project originates from the complementary expertise of several local scientific research communities involved in radiobiology, subatomic physics, instrumentation and particle accelerator technologies to perform multidisciplinary studies of significant impact. The 50 MeV to 140 MeV electron energy range will be suitable to perform a series of new promising feasibility and radiobiological studies of less destructive radiotherapy treatments relying on space fractionated sub-millimetric pencil beams and other novel techniques. In the field of subatomic physics, we are aiming at a significant contribution to the worldwide effort of understanding the puzzle of the proton charge radius. The ProRad experiment will investigate electron proton elastic scattering to accurately measure the proton electric form factor in an unexplored ultra-low four-momentum squared range. Additionally, a fully equipped instrumentation platform will provide the tools to develop next generation of detectors.

This seminar will discuss the PRAE facility with an emphasis on the scientific objectives of radiobiological and subatomic physics studies.

Topology and quantum computation

Dr. Alessio Calzona
Institute for Theoretical Physics and Astrophysics University of Würzburg, Germany
When: Tuesday, February 19, 2019 - 15:00
Where: Dipartimento di Fisica - Aula 501


Topology is a mathematical discipline which was born in the 18th century and knew a rigorous and impressive development in the last century, eventually becoming one of the great unifying ideas of mathematics. With the discovery of the quantum Hall effect in 1980, topology began to be used also in  condensed matter physics. The study of topologically non-trivial systems is nowadays extremely important both at the level of fundamental research and in view of promising applications which exploit the intrinsic robustness of topology. In this regard, topological protection is believed to be extremely relevant for the future development of quantum computation.

In this seminar, I will discuss the main ideas behind both the topological classification of  condensed matter systems and the quantum computation. I will then bring these two topics  together by introducing the so-called "Majorana zero modes". These exotic and topological excitations, which feature anyonic  exchange statistic, represent indeed the building block of the so-called "topological quantum computation" and are extensively studied both theoretically and experimentally.

Laurea Triennale

When: Wednesday, March 20, 2019 - 15:00

Laurea Magistrale

When: Thursday, March 21, 2019 - 15:00

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