![]() |
COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. | ![]() |
The topology of smecticsAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Dr G Moller. The homotopy theory of topological defects in ordered media fails to completely characterize systems with broken translational symmetry. We argue that the problem can be understood in terms of the lack of rotational Goldstone modes in such systems and provide an alternate approach that correctly accounts for the interaction between translations and rotations. Dislocations are associated, as usual, with branch points in a phase field, whereas disclinations arise as critical points and singularities in the phase field. We introduce a three-dimensional model for two-dimensional smectics that clarifies the topology of disclinations and geometrically captures known results without the need to add compatibility conditions. Our work suggests natural generalizations of the two-dimensional smectic theory to higher dimensions and to crystals. This talk is part of the Irregular seminars in TCM series. This talk is included in these lists:
Note that ex-directory lists are not shown. |
Other listsThe Archimedeans (CU Mathematical Society) External seminar at CSCR The obesity epidemic: Discussing the global health crisisOther talksSingle Molecule Spectroscopy CANCELLED DUE TO STRIKE ACTION The interpretation of black hole solutions in general relativity Cycloadditions via TMM-Pd Intermediates: New Strategies for Asymmetric Induction and Total Synthesis Ethics for the working mathematician, seminar 11: Winning with mathematics Quotation and the Law |