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BEGIN:VEVENT
DTSTAMP:20260914T074835Z
LAST-MODIFIED:20121116T203436Z
DTSTART:20080411T160000Z
DTEND:20080411T170000Z
UID:event225@bu.edu
URL:http://physics.bu.edu/internal/events/show/225
SUMMARY:1D Fermions and Bosons beyond the Luttinger Liquid Picture
DESCRIPTION:Featuring Leonid Glazman\, Yale University\nHosted by: Anatoli 
	Polkovnikov\n\nPart of the Biophysics/Condensed Matter Seminar Series.\n\nA
	bstract:\nWe consider the effect of a generic nonlinear dispersion relation
	 on the dynamics of one-dimensional fermions or bosons. The dispersion nonl
	inearity restores the main feature of the Fermi liquid: In a striking depar
	ture from the Luttinger liquid theory\, the spectral function acquires a fi
	nite-width Lorentzian peak at the particle mass-shell. The nonlinear disper
	sion leads also to broadening of the dynamic structure factor peak. The res
	ulting peak shapes for bosons or fermions are manifestly non-Lorentzian\, w
	ith newly-discovered power-law singularities. The origin of this new non-an
	alytical behavior of 1D fermions and bosons is related to the familiar phys
	ics of the Fermi-edge singularity.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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