3 papers
cond-mat.soft2025
Screw Symmetry, Chiral Hydrodynamics and Odd Instability in Active Cholesterics
Gareth P. Alexander, S. J. Kole, Ananyo Maitra +1
Active cholesterics are chiral in both their structure, which has continuous screw symmetry, and their active stresses, which include contributions from torque dipoles. Both expres…
cond-mat.soft2024
Chirality and odd mechanics in active columnar phases
S. J. Kole, Gareth P. Alexander, Ananyo Maitra +1
Chiral active materials display odd dynamical effects in both their elastic and viscous responses. We show that the most symmetric mesophase with two-dimensional odd elasticity in…
cond-mat.soft2024
Escape into the Third Dimension in Cholesteric Liquid Crystals
Joseph Pollard, Gareth P. Alexander
Integer winding disclinations are unstable in a nematic and are removed by an `escape into the third dimension', resulting in a non-singular texture. This process is frustrated in…