COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |
University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Chiral symmetry breaking and defects in confined nematics
Chiral symmetry breaking and defects in confined nematicsAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Almarie Williams. This talk has been canceled/deleted We analyze the complex nematic textures and defect structures that result from the competition between topological constraints and the elasticity of nematic liquid crystals confined in droplets with handles stabilized against surface-tension-driven instabilities using a yield-stress material as outer fluid. We uncover a surprisingly persistent twisted configuration of the nematic director inside the droplets when tangential anchoring is established at their boundaries, which we explain after considering the influence of saddle-splay on the elastic free energy. For toroidal droplets, we find that the saddle-splay energy screens the twisting energy resulting in a spontaneous breaking of mirror symmetry; the chiral twisted state persists for aspect ratios as large as ~20. For droplets with additional handles, two additional -1 surface defects per handle are generated in regions with local saddle geometry. This talk is part of the Isaac Newton Institute Seminar Series series. This talk is included in these lists:This talk is not included in any other list Note that ex-directory lists are not shown. |
Other listsGraduate Workshop in Economic and Social History Conservation seminars Sedgwick Museum of Earth Sciences OCaml Labs Events Biological and Statistical Physics discussion group (BSDG) SciScreen CambridgeOther talksThe role of the oculomotor system in visual attention and visual short-term memory Sneks long balus PROFESSIONAL REGISTRATION WORKSHOP Production Processes Group Seminar - "Evanescent Field Optical Tweezing for Synchrotron X-Ray Crystallography" Quantum geometry from the quantisation of gravitational boundary modes on a null surface Bayesian deep learning “Modulating Tregs in Cancer and Autoimmunity” Lecture Supper: James Stuart: Radical liberalism, ‘non-gremial students’ and continuing education Networks, resilience and complexity A transmissible RNA pathway in honeybees PTPmesh: Data Center Network Latency Measurements Using PTP Energy landscape of multivariate time series data |