BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//RLASKEY//CALENDEROUS//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20261020T060132Z
LAST-MODIFIED:20161007T150511Z
DTSTART:20161017T190000Z
DTEND:20161017T200000Z
UID:event1676@bu.edu
URL:http://physics.bu.edu/internal/events/show/1676
SUMMARY:Dual Time Scales in Simulated Annealing of a Two-dimensional Ising 
	Spin Glass
DESCRIPTION:Featuring Na Xu\n\nPart of the Departmental Seminars.\n\nWe app
	ly a generalized Kibble-Zurek out-of-equilibrium scaling ansatz to simulate
	d annealing\nwhen approaching the spin-glass transition at temperature T = 
	0 of the two-dimensional Ising model\nwith random J = +/-1 couplings. Analy
	zing the spin-glass order parameter and the excess energy\nas functions of 
	the system size and the annealing velocity\, we found scaling where the ene
	rgy relaxes\nslower than the order parameter\, i.e.\, there are two differe
	nt dynamic exponents. We argue that such\nbehavior arises as a consequence 
	of the entropy-driven ordering mechanism within droplet theory.\nIn the con
	text of optimization\, our study provides an example of robust dense-region
	 solutions for\nwhich the excess energy (the conventional cost function) ma
	y not be the best measure of success.\nhttp://arxiv.org/abs/1609.09024\n\nD
	issertation Committee:  Anders Sandvik\, Claudio Chamon\, Anatoli Polkovnik
	ov\, Alex Sushkov\, Robert Carey
LOCATION:SCI 328\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
END:VCALENDAR