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DTSTAMP:20260825T083200Z
LAST-MODIFIED:20210226T153751Z
DTSTART:20201104T203000Z
DTEND:20201104T220000Z
UID:event2359@bu.edu
URL:http://physics.bu.edu/internal/events/show/2359
SUMMARY:The quantum sine-Gordon model with quantum circuits
DESCRIPTION:Featuring Anada Roy\, Technische Universitat Munchen (TUM)\nHos
	ted by: Claudio Chamon\n\nPart of the Condensed Matter Theory Seminar Serie
	s.\n\nAnalog quantum simulation has the potential to be an indispensable te
	chnique in the investigation of complex quantum systems. In this work\, we 
	numerically investigate a one-dimensional\, faithful\, analog\, quantum ele
	ctronic circuit simulator built out of Josephson junctions for one of the p
	aradigmatic models of an integrable quantum field theory: the quantum sine-
	Gordon (qSG) model in 1+1 space-time dimensions. We analyze the lattice mod
	el using the density matrix renormalization group technique and benchmark o
	ur numerical results with existing Bethe ansatz computations. Furthermore\,
	 we perform analytical form-factor calculations for the two-point correlati
	on function of vertex operators\, which closely agree with our numerical co
	mputations. Finally\, we compute the entanglement spectrum of the qSG model
	. We compare our results with those obtained using the integrable lattice-r
	egularization based on the quantum XYZ chain and show that the quantum circ
	uit model is less susceptible to corrections to scaling compared to the XYZ
	 chain. We provide numerical evidence that the parameters required to reali
	ze the qSG model are accessible with modern-day superconducting circuit tec
	hnology\, thus providing additional credence towards the viability of the l
	atter platform for simulating strongly interacting quantum field theories. 
	 \n\nRef: arXiv:2007.06874
LOCATION: \, \, 
STATUS:CONFIRMED
CLASS:PUBLIC
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