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DTSTAMP:20261024T230657Z
LAST-MODIFIED:20201130T175133Z
DTSTART:20201204T170000Z
DTEND:20201204T180000Z
UID:event2383@bu.edu
URL:http://physics.bu.edu/internal/events/show/2383
SUMMARY:Fragility of Time Reversal Symmetry-Protected Topological Phases
DESCRIPTION:Featuring Nigel Cooper\, University of Cambridge\n\nPart of the
	 Biophysics/Condensed Matter Seminar Series.\n\nA key development of modern
	 condensed matter theory has been the discovery of topological phases of qu
	antum matter that are stabilised by underlying symmetries. A central role i
	s played by time-reversal symmetry (TRS)\, which leads to various topologic
	al phases\, notably topological band insulators and the Haldane phase of qu
	antum magnets. In this talk I shall discuss the fate of topological phases 
	in situations that go beyond ground state physics: in non-equilibrium situa
	tions\, and in settings where the system is coupled to an external bath. I 
	will show that\, while topological features can be preserved in these situa
	tions\, TRS-protected phenomena are intrinsically fragile. These results hi
	ghlight the enigmatic nature of TRS in quantum mechanics and elucidate pote
	ntial challenges in utilizing topological systems for quantum technologies.
	\n\nJoin on zoom: https://bostonu.zoom.us/j/98731662171?pwd=VGVvSEZLZUlRa0x
	NbUgvWGh6THA3Zz09
LOCATION: \, \, 
STATUS:CONFIRMED
CLASS:PUBLIC
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