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SUMMARY:Applications of models of the Gaudin type to condensed matter phys
 ics - Amico\, L (Catania)
DTSTART:20090324T140000Z
DTEND:20090324T150000Z
UID:TALK17528@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:I will discuss certain quantum models ultimately tracing back 
 to the quasiclassical limits of vertex models. I will demonstrate how the 
 rational and trigonometric Gaudin models with periodic or open boundary co
 nditions allow to study pairing force Hamiltonians (the BCS superconductor
 s are an example) exactly. Also spin-boson systems\, useful in various fie
 lds like atomic and mesoscopic physics and quantum computations\, can be s
 een as related to Gaudin-like Hamiltonian. Such a relation allow to explor
 e non perturbatively some physical regimes that were proven particularly r
 elevant for the applications.
LOCATION:Seminar Room 1 Newton Institute
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