Coulomb blockade of neutral modes

Speaker
Prof. Yuval Gefen, Weizmann Institute of Science
Date
14/11/2013 - 15:30 - 14:30Add to Calendar 2013-11-14 14:30:00 2013-11-14 15:30:00 Coulomb blockade of neutral modes 18 years ago Kane, Fisher, and Polchinsky have predicted that the edge of a fractional quantum Hall system with filling factor 2/3 will undergo reconstruction and renormalization. As a result two chiral edge channels emerge: one that supports charge that moves in the " expected" direction, and another which supports neutral excitations that move in the opposite direction. A long sought after experimental confirmation has been recently reported. I will explain the physics of these neutral modes, outline the experiment, and explain how they are manifest when transport through a quantum dot is considered. Generalization to other fractions will be discussed as well Seminar room 210, Reznick bld 209 המחלקה לפיזיקה physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Seminar room 210, Reznick bld 209
Abstract
18 years ago Kane, Fisher, and Polchinsky have predicted that the edge of a fractional quantum Hall system with filling factor 2/3 will undergo reconstruction and renormalization. As a result two chiral edge channels emerge: one that supports charge that moves in the " expected" direction, and another which supports neutral excitations that move in the opposite direction. A long sought after experimental confirmation has been recently reported. I will explain the physics of these neutral modes, outline the experiment, and explain how they are manifest when transport through a quantum dot is considered. Generalization to other fractions will be discussed as well

תאריך עדכון אחרון : 10/11/2013