Rotational invariance and the theory of directed nematic polymers

Randall D. Kamien, Pierre Le Doussal, David R. Nelson
1993 Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics  
The consequences of rotational invariance in a recent theory of fluctuations in dilute polymer nematics are explored. A correct rotationally invariant free energy insures that anomalous couplings are not generated in a one-loop renormalization group calculation.
doi:10.1103/physreve.48.4116 pmid:9961075 fatcat:ll355itikrf37a7aaf53vp3jm4