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DTSTAMP:20260828T172930Z
LAST-MODIFIED:20151002T195138Z
DTSTART:20151006T193000Z
DTEND:20151006T203000Z
UID:event1466@bu.edu
URL:http://physics.bu.edu/internal/events/show/1466
SUMMARY:Quantum physics in the laboratory: From magnetic imaging of single 
	atoms to searching for dark matter
DESCRIPTION:Featuring Alex Sushkov\nHosted by: David Campbell\nPoster: http
	://physics.bu.edu/internal//files/get/COLL-100615-Sushkov.pdf\n\nPart of th
	e Physics Department Colloquia Series.\n\nThe field of quantum science and 
	engineering was originally stimulated by ideas from information theory show
	ing that quantum mechanical machines can perform certain informational proc
	essing tasks much faster than any classical computer. While it is still unk
	nown if and how truly large-scale quantum machines can be built\, these con
	cepts have already spurred new fields of science and inspired novel applica
	tions. I will talk about the development of new quantum tools for precision
	 measurements and about how these tools can be used to address key problems
	 in fundamental and applied science. I will focus on nanoscale magnetic sen
	sing\, and describe how we used nitrogen-vacancy (NV) centers in diamond to
	 achieve magnetic sensing and imaging of individual proton nuclear spins\, 
	as well as NMR spectroscopy of individual protein molecules\, under ambient
	 conditions. In the future\, nanoscale sensing with NV centers in diamond m
	ay enable experiments testing of one of the central assumptions of statisti
	cal mechanics\, the establishment of local equilibrium due to interactions\
	, which was recently shown to fail in a class of strongly-disordered intera
	cting systems\, for which there exists a many-body localized (MBL) phase\, 
	with no transport or thermalization. The tools developed in the field of pr
	ecision magnetic sensing can also be used to address one of the most import
	ant open problems in modern physics - the nature of dark matter. Specifical
	ly\, I will describe the experimental approach to searching for axion dark 
	matter using magnetic resonance\, which has the potential to detect axion-l
	ike dark matter with coupling strength many orders of magnitude beyond the 
	current astrophysical and laboratory limits\, and all the way down to the Q
	uantum Chromodynamics (QCD) axion.
LOCATION:SCI 109\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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