[seminar] [DANAS] F. Franchini, 6.3. (utorak) 14h (c.t.), serija predavanja, ZTF
Anđelo Samsarov
Andjelo.Samsarov at irb.hr
Tue Mar 6 10:20:12 CET 2018
SERIJA PREDAVANJA U SKLOPU SEMINARA TEORIJSKE FIZIKE
(Zajednički seminari Fizičkog odsjeka PMF-a te Zavoda za teorijsku
fiziku i Zavoda za eksperimentalnu fiziku IRB-a)
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A primer on integrable techniques for 1D quantum systems
Fabio Franchini
IRB, Zavod za teorijsku fiziku
Datum: utorak, 6. ožujka 2018.
Vrijeme: 14 sati c.t.
Mjesto: IRB, predavaona I krila
Sažetak:
One dimensional systems are intrinsically strongly interacting and
require approaches beyond perturbation theory to be described. Some
such models are known to be integrable and have paved the way to
understand the universality of general low-dimensional systems. In
this series of lectures I will present the basic ideas behind Bethe
Ansatz integrability, through the example of the 1D Heisenberg chain
and the XXZ chain. In the first two lectures I will introduce the
model and the technique and use the coordinate Bethe Ansatz to
construct the phase diagram of the model and discuss its low-energy
excitations. In the third lecture I'll make a detour by solving a 2D
classical statistical model, the six-vertex model, because its
solution justifies the Algebraic Bethe Ansatz (ABA) techniques to
solve the Heisenberg chain that will be the topic of the forth
lecture. ABA overcomes the shortcomings of the coordinate approach and
truly shows what is the nature of quantum integrability.
Voditelj seminara: Anđelo Samsarov (asamsarov at irb.hr)
http://thphys.irb.hr/Seminar/list.htm
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