Speaker
Dr
Wynne Evans
(University of Bern)
Description
CP(N-1) quantum field theories in (1+1)-d share important features with (3+1)-d QCD, such as asymptotic freedom, a dynamically generated mass gap and topological sectors. In the low energy limit the (2+1)-d SU(3) spin system undergoes spontaneous symmetry breaking and hence dimensional reduction to the (1+1)-d CP(2) model. By performing Monte Carlo simulations of (2+1)-d SU(3) spin systems at non-zero chemical potential we have gained access to the (1+1)-d CP(2) model at non-zero chemical potential. The theory which underpins our calculation will be reviewed and numerical results for the magnetisations and correlation functions as a function of the chemical potentials will be discussed.
Primary author
Dr
Wynne Evans
(University of Bern)
Co-authors
Dr
Urs Gerber
(Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México)
Prof.
Uwe-Jens Wiese
(University of Bern)
