Jul 24 – 30, 2016
Highfield Campus, University of Southampton
Europe/London timezone

A worm algorithm for the lattice CP(N-1) model

Jul 29, 2016, 2:00 PM
Building 67 Room 1027 (Highfield Campus, University of Southampton)

Building 67 Room 1027

Highfield Campus, University of Southampton

Talk Nonzero Temperature and Density Nonzero Temperature and Density


Mr Tobias Rindlisbacher (ETH Zürich)


The CP(N-1) model in 2D is an interesting toy model for 4D QCD as it possesses confinement, asymptotic freedom and a non-trivial vacuum structure. Due to the lower dimensionality and the absence of fermions, the computational cost for simulating 2D CP(N-1) on the lattice is much lower than the one for simulating 4D QCD. However to our knowledge, no efficient algorithm for simulating the lattice CP(N-1) model has been tested so far, which also works at finite density. To this end we propose a new type of worm algorithm which is appropriate to simulate the lattice CP(N-1) model in a dual, flux-variables based representation, in which the introduction of a chemical potential does not give rise to any complications.

Primary author

Mr Tobias Rindlisbacher (ETH Zürich)


Dr Philippe de Forcrand (ETH Zurich & CERN)

Presentation materials