DFT Seminar

[Rosita Glavina]

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University of Trieste - Department of Theoretical Physics


	SEMINAR

	Tomaz PROSEN
	(University of Ljubljana)

	DYNAMICAL AND TIME-DEPENDENT ENTROPIES
	IN QUANTUM SPIN CHAINS

	Thursday, March 6, 2008
	at 15:00, Room 204 DFT, Main Building 2nd floor


Abstract 
Some recent results on two kinds of quantum dynamical entropies in chains 
of interacting spins/qubits, which may characterize complexity of quantum
time-evolution, shall be presented. First, I will describe a possible
transfer-matrix approach to the computation of a simplified version 
of Alicki-Fannes entropy in spin chains and its numerical implementation. 
Second, I will discuss time-dependent operator space entanglement entropy,
characterizing efficiency of classical simulations of quantum dynamics, and
describe some models where it can be analytically tackled.
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