Abstract:

Quantum field theories arise as low energy effective descriptions for gapless states of quantum many-body systems. Although strongly coupled quantum field theories are common in condensed matter systems, currently there is no systematic way of understanding those theories.
Sometimes, strongly coupled field theories have weak coupling description in terms of degrees of freedom which are not point-like particles anymore,
as is the case in the correspondence between gauge theory and string theory. In this talk, I will discuss about 2+1 dimensional non-Fermi liquid states whose low energy effective theory is likely to be a matrix/string theory.