St. Olaf CollegePhysicsSt. Olaf College

Department Colloquium


Wednesday
Nov. 8, 2006
Science Center 170
2:00—3:00 p.m.

Lunch: 12:00 in
Buntrock Commons #221

 

 

Phone: 507-646-3120
email: russell@stolaf.edu

"Quantum Entanglement of Atoms-Without Forces"

Thad Walker

Professor of Physics
University of Wisconsin - Madison


Recent developments in quantum mechanics and atomic physics have opened up avenues for contemplating ever more precise manipulation of atoms.  For example, can we make a collection of atoms emit exactly one photon when we want them to and in the direction we specify?  Can we teleport the state of an atom to an ensemble, and then read it out with high quantum efficiency?  Can we take two individual atoms held apart by 25,000 atomic diameters and entangle them for high fidelity quantum manipulations?  Can we do these things without the atoms feeling any forces?  Not yet--but this talk will describe these visions and our first steps toward realizing them experimentally.