|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
The dynamics of conservative charged molecular strands
If you have a question about this talk, please contact Mustapha Amrani.
Topological Dynamics in the Physical and Biological Sciences
The equations of motion are derived for the dynamical folding of charged molecular strands, modeled as flexible continuous filamentary distributions of interacting rigid charge conformations. These equations are nonlocal when the screened Coulomb interactions, or Lennard-Jones potentials between pairs of charges, are included. The nonlocal dynamics is derived in the convective representation of continuum motion by using modified Euler-Poincar and Hamilton-Pontryagin variational formulations. In the absence of nonlocal interactions, the equations recover the classical Kirchhoff theory of elastic rods. The motion equations in the convective representation are shown to arise by a classical Lagrangian reduction associated to the symmetry group of the system. This approach uses the process of affine Euler-Poincar reduction initially developed for complex fluids. On the Hamiltonian side, the Poisson bracket of the molecular strand is obtained by reduction of the canonical symplectic structure on the phase space. Time permitting, the dynamics of multibouquets will also be presented.
This talk is part of the Isaac Newton Institute Seminar Series series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listsCollaboration Events Computer Vision Reading Group @ CUED The Audrey Richards Annual Lecture in African Studies
Other talksThe Lyrical in Epic Time: On Modern Chinese Literary Thought Twenty-third Epigenetics Club Seminar Desistance from crime among Chilean juvenile offenders Generating finite classical groups by elements with large fixed point spaces Process intensification technologies at ExxonMobil: Reverse-Flow Reforming, and On-Board Fuel Separation The use of recent advances in electron microscopy to study the ribosome