# Previous Michelson Postdoctoral Prize Lectureships

## May 10, 2005 , Miller Room, 11:30 PM

Yaroslav Tserkovnyak, Harvard University

#### Electron Interference and Correlations as Seen by Momentum-Conserving Tunneling in 1D

Tunneling between parallel quantum wires of high purity is a
powerful tool in investigating electron correlation effects in one
dimension. In particular, it turns out that conductance
interference patterns due to the finite size of the tunnel junction
encode a wealth of information about the dispersion of the
elementary excitations in the system as well as the gate
confinement of the wires. Most interestingly, by means of the
tunneling interference patterns, one can "see" the spin-charge
separation predicted for elementary excitations in 1D. Another
interesting interplay between the finite size and electron
interactions shedding a light on 1D physics occurs at low energies
(voltage and temperature), when the tunneling exponent of zero-bias
anomaly is determined not only by the electron interactions in the
wires but also by the extent of the tunneling region.

Host: Harsh Mathur