Kolloquien

"Quantum mechanical tunneling underlies a wide range of fundamental phenomena and enables the operation of diverse electronic devices, from flash memories to SQUID magnetometers [1]. Its simplest realization is the tunnel junction, formed by coupling two conductors through a thin insulating barrier. As a minimal and well-controlled architecture, tunnel junctions provide direct access to the many-body processes governing mesoscopic quantum transport [2], which are ultimately set by the spectrum of elementary excitations above the ground state. [mehr]

to be announced [mehr]

Quantum key distribution can provide provably secure communication, but every security proof rests on physical and mathematical assumptions that are often left implicit. [mehr]

Optical atomic clocks with eighteen significant digits are the most accurate measurement devices available to us with applications ranging from tests of fundamental physics to height difference measurements in relativistic geodesy. [mehr]

Attosecond technology has provided new ways to observe the out-of-equilibrium properties of matter with high temporal resolution, enabling us to study charge dynamics at the angstrom length scale. [mehr]

Most galaxies host massive black holes of masses between millions to billions of solar masses at their nuclei, which can become active galactic nuclei and quasars when they accrete gas and stars rapidly. [mehr]

[mehr]

Double features of M.Sc. Johannes Arceri & Mihaela Žigman [mehr]

tba [mehr]