Ian Affleck is an eminent theoretical physicist, now Professor of Physics at Boston University. Professor Affleck's main research interests are in theoretical condensed matter physics, in particular its interface with elementary particle theory. The latter theory has developed many fascinating mathematical constructions such as string theory, which are often difficult to apply directly to the presentday experimental reality of particle physics. Condensed matter physics offers a host of exotic experimental systems which can sometimes provide applications for these sophisticated mathematical ideas.
Examples include:
 understanding the new highTc superconductors,
 applications of quantum field theory to the physics of quasione dimensional antiferromagnets and
 the application of conformal field theory (which is the mathematical underpinning of string theory) to shed new light on the interactions between magnetic impurities and conduction electrons in metals.
Talks by Ian Affleck

Impurity entanglement entropy and the Kondo model
Ian Affleck University of British Columbia
PIRSA:10050084 
Entanglement entropy and the Kondo screening cloud
Ian Affleck University of British Columbia

Conformal field theory in the laboratory: quantum dots, Kondo effect, nonFermi liquids and all that
Ian Affleck University of British Columbia
PIRSA:06110000