863 research outputs found
On propagators and three-point functions in Landau gauge QCD and QCD-like theories
Recent progress in our studies of propagators and three-point functions in
Landau gauge for QCD and QCD-like theories is presented. Special emphasis is
put on the properties of the three-gluon vertex and the quark-gluon vertex. The
effect of unquenching is investigated. Furthermore, an exploratory study for a
large number of light flavours is described, from where clear evidence for the
qualitative behaviour of propagators in the so-called conformal window can be
extracted.Comment: 13 pages, 9 figures; Proceedings of the workshop QCD-TNT-III, ECT*
Trento, Sept. 2-6, 2013; references update
Network topology of interlocked chiral particles
Self-assembly of chiral particles with an L-shape is explored by Monte-Carlo
computer simulations in two spatial dimensions. For sufficiently high packing
densities in confinement, a carpet-like texture emerges due to the interlocking
of L-shaped particles, resembling a distorted smectic liquid crystalline layer
pattern. From the positions of either of the two axes of the particles, two
different types of layers can be extracted, which form distinct but
complementary entangled networks. These coarse-grained network structures are
then analyzed from a topological point of view. We propose a global charge
conservation law by using an analogy to uniaxial smectics and show that the
individual network topology can be steered by both confinement and particle
geometry. Our topological analysis provides a general classification framework
for applications to other intertwined dual networks.Comment: 11 pages, 11 figure
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