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DTSTAMP:20170720T204404Z
LAST-MODIFIED:20170320T130528Z
DTSTART:20170324T160000Z
DTEND:20170324T170000Z
UID:event1742@bu.edu
URL:http://physics.bu.edu/events/show/1742
SUMMARY:Quantum aging\, universal real-time crossovers\, and the non-equili
brium phase diagram of pre-thermal critical states
DESCRIPTION:Featuring Jamir Marino\, University of Cologne\n\nPart of the B
iophysics/Condensed Matter Seminar Series.\n\nInspired by the phenomenon of
aging occurring in classical statistical physics\, I will discuss the impr
int of similar real-time scaling behaviour in the dynamics of correlation a
nd response functions in a far from equilibrium O(N) interacting field theo
ry\, quenched at its dynamical critical point. Universal pre-thermal dynami
cs after such quantum quench\, first approaches an attractor analog of a fi
xed point dominated by quantum fluctuations\, reaching subsequently a more
stable fixed point with classical thermal-like features due to the energy i
njected by the quench. Solving the RG crossover from quantum to classical f
ixed points and employing the exactly solvable large N limit\, I will show
how static and dynamical critical exponents cross over among the two fixed
points and affect observables of physical interest. Time permitting\, I wil
l briefly discuss the expected phase diagram for this novel type of non-equ
ilibrium criticality occurring during pre-thermalization.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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