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DTSTAMP:20261019T024259Z
LAST-MODIFIED:20191112T154934Z
DTSTART:20191203T200000Z
DTEND:20191203T213000Z
UID:event2236@bu.edu
URL:http://physics.bu.edu/internal/events/show/2236
SUMMARY:Quantum Monte Carlo Studies of Phase Transitions
DESCRIPTION:Featuring Pranay Patil\n\nPart of the PhD Final Oral Exams.\n\n
	Dissertation Committee:  Anders Sandvik\, Claudio Chamon\, David Campbell\,
	 Alex Sushkov\, Emanuel Katz\n\nPhase transitions have been an active area 
	of research in statistical mechanics for almost a century and have recently
	 been integrated into quantum mechanics. Many phenomena such as superconduc
	tivity and unconventional magnetism are understood to arise from exotic qua
	ntum phases and at points describing quantum phase transitions. A detailed 
	understanding of these phase transitions requires numerical simulations of 
	models which benchmark realistic models against theoretical frameworks. The
	 topic of this thesis is the implementation of Quantum Monte Carlo simulati
	on\, which is a powerful technique to understand quantum condensed matter\,
	 for interesting models to illustrate novel phenomena\nin magnetic systems.
	 The novel features of condensed matter systems which will be described in 
	this talk consist of emergent symmetries at critical points\, interesting d
	ynamical features of such systems and the drastic effects of defects in spi
	n systems used in the field of adiabatic quantum computing. Emergent symmet
	ries are shown by condensed matter systems especially at critical points an
	d are features which cannot be shown by individual or a small number of spi
	ns. Examples of this in one and two dimensions will be presented in this ta
	lk. In addition to this\, spin systems can show excitations which have an i
	nteresting spatial structure as a consequence of restricted dynamics which\
	nonly allow the excitations to spread in a particular region. This will be 
	presented in the context of a simple model here\, along with numerical supp
	ort. This is followed by a description of adiabatic quantum computing along
	 with a particular model which we study. The phase transition and the effec
	ts on the performance of adiabatic quantum computing are studied in this co
	ntext.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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