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BEGIN:VEVENT
DTSTAMP:20261021T081235Z
LAST-MODIFIED:20091023T172707Z
DTSTART:20091026T163000Z
DTEND:20091026T173000Z
UID:event530@bu.edu
URL:http://physics.bu.edu/internal/events/show/530
SUMMARY:Strange metal from holography
DESCRIPTION:Featuring John McGreevy\, MIT\n\nPart of the HET Seminar Series
	.\n\nABSTRACT:\n This talk is about a class of non-Fermi liquids\,  identif
	ied using the AdS/CFT correspondence.\nAfter motivating the study of non-Fe
	rmi liquids\,  I will describe the calculation of response functions of com
	posite fermionic operators  in certain strongly-interacting quantum field t
	heories at finite density\,\nusing a classical gravity theory.   They exhib
	it Fermi surfaces:  gapless fermionic excitations at discrete shells in mom
	entum space.   The low-energy excitations near such a Fermi suface are not 
	Landau quasiparticles.   For some values of the parameters of the gravity t
	heory\, the system is a `marginal Fermi liquid\,'  a phenomenological model
	 of the `strange metal' phase of high temperature superconductors.\nThe con
	tribution to the conductivity from these holographic Fermi surfaces has a t
	emperature dependence  consistent with the application to strange metal.
LOCATION: \, \, 
STATUS:CONFIRMED
CLASS:PUBLIC
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