Mesoscopic modelling of droplets on topologically patterned substrates
LECT NOTES COMPUT SC 3039 (2004) 556-563
Abstract:
We present a lattice Boltzmann model to describe the spreading of droplets on topologically patterned substrates. We apply it to model superhydrophobic behaviour on surfaces covered by an array of micron-scale posts. We find that the patterning results in a substantial increase in contact angle, from 110degrees to 156degrees.Topological order and conformal quantum critical points
Annals of Physics Elsevier 310:2 (2004) 493-551
Charge separation of dense two-dimensional electron-hole gases: mechanism for exciton ring pattern formation.
Phys Rev Lett 92:11 (2004) 117405
Abstract:
We report on new experiments and theory that unambiguously resolve the recent puzzling observation of large diameter exciton emission halos around a laser excitation spot in two dimensional systems. We find a novel separation of plasmas of opposite charge with emission from the sharp circular boundary between these two regions. This charge separation allows for cooling of initially hot optically generated carriers as they dwell in the charge reservoirs for very long times.Strings on type-IIB pp-wave backgrounds with interacting massive theories on the worldsheet
Journal of High Energy Physics Springer Nature 2004:03 (2004) 027