Condensed Matter Physics Seminar
12 Noon, Friday, November 9, 2001
Room 1201, Physics Building
The story of the composite fermion
Jainendra Jain
(Pennsylvania State University)
Abstract: When two-dimensional electrons are confined to the lowest
Landau level, they capture quantum mechanical vortices to form new particles
called composite fermions. The first part of the talk will give a brief account
of the dramatic chain of events that led me to postulate the existence of
composite fermions. The remainder of the talk will discuss the consequences of
composite fermions, numerous experimental and theoretical verifications, and
show how they provide the explanation for the remarkable phenomenon of the
fractional quantum Hall effect. If time permits, I will briefly mention several
possible phases of composite fermions, including their Fermi sea, paired state,
and stripes.
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Host: Sankar Das Sarma
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