Reznikov et al. [Phys. Rev. Lett. 75, 3340 (1995)]] have presented definitive observations of nonequilibrium noise in a quantum point contact. Especially puzzling is the "anomalous" peak structure of the excess noise measured at constant current; to date it remains unexplained. We show that their experiment directly reveals the deep link between conservation principles in the electron gas and i...

After a century of development, during which the microscopic foundations of transport kinetics were established as one of the great achievements of modern physics, the last decade and a half has seen fresh, indeed revolutionary, progress in the understanding of electrical conduction. This progress has never been so rapid as in the mesoscopic realm. It can be said that, in the place of more trad...

The macroscopic quantum interference effects in ballistic Josephson microstructures are investigated. The studied system consists of four bulk superconductors (terminals) which are weakly coupled through the mesoscopic rectangular normal metal (two dimensional electron gas). We show that nonlocal electrodynamics of ballistic systems leads to specific current-phase relations for the mesoscopic m...

We develop a mesoscopic modeling framework for diffusion in a crowded environment, particularly with applications in the description of living cells. Through homogenization techniques we effectively coarse-grain a detailed microscopic description into a previously developed internal state diffusive framework. In turn, in a certain deterministic limit this framework connects to macroscopic fract...

A discussion of recent work on time-dependent transport in mesoscopic structures is presented. The discussion emphasizes the use of time-dependent transport to gain information on the charge distribution and its collective dynamics. We discuss the RC-time of mesoscopic capacitors, the dynamic conductance of quantum point contacts and dynamic weak localization effects in chaotic cavities. We rev...