ELFT HÍRADÓ

[Zoltan Mate <mate AT namafia.atomki.hu>]

Az MTA Atommagkutató Intézetének nagy előadójában
(Debrecen, Bem tér 18/c. 12. ép. III. em.)
2009. november 26-án, csütörtökön 11:00-kor

                 Peter JARVIS
       (School of Mathematics and Physics,
            University of Tasmania)
  
            Quantum dissipative systems
    via bosonisation of fermion gas-impurity models 

címmel előadást tart.
Az előadás előtt 10:30-tól tea.
Vendégeket szívesen látunk.

                                        Máté Zoltán

Abstract:
Solvable models of one dimensional fermion gases interacting with magnetic 
impurities can be interpreted as quantum dissipative systems via 
bosonisation techniques. The most famous instance is the transcription 
between the spin-1/2 anisotropic Kondo model, and the so-called spin-boson 
model (a spin-1/2 system with ohmic coupling to an oscillator bath). We 
review this construction, and generalise it to several new cases. These 
include an elliptic version of the Kondo model, and a three-component 
fermion gas model. The corresponding quantum dissipative systems will be 
described, and prospects for the analysis of their properties using the 
exact fermion gas solution will be discussed.