### Wednesday, May 21

8:30 AM-9:30 AM

*Chair: Boris L. Altshuler, NEC Research, Inc.*

*Ballroom I, II, III - Level B*

## IP8

Small Electronics and Quantum Chaos

The transport properties of electronic devices below the few-micrometer
scale show signatures of quantum interference and quantum confinement when
the devices are cooled near absolute zero. This talk will summarize recent
experiments measuring random (but perfectly repeatable) fluctuations in
conductance of these structures - known as quantum dots - and the
connection between the universal statistical properties of these fluctuations and the universal spectral statistics of random matrix theory
and quantum manifestations of chaos.

There has been great progress in this field in the last few years, and the behavior of quantum-coherent electrons is now well in hand, with good
agreement between theory and experiment. This success story applies when
the unavoidable coupling of electrons to the environment and each other is
small. The great outstanding problems in the field concern the the
inclusion of interactions and decoherence. Some of these issues - somewhat
less of a success story - will also be discussed.

**Charles M. Marcus**

* Department of Physics, Stanford University*

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*TMP, 4/4/97*
*TJF, 4/15/97*