The DNA molecule is modeled by a parabola embedded chain with long-range interactions between twisted base pair dipoles. A mechanism for bubble generation is presented and investigated in two different configurations. Using random normally distributed initial conditions to simulate thermal fluctuations, a relationship between bubble generation, twist and curvature is established. An analytical approach supports the numerical results.
Physical Review E (statistical, Nonlinear, and Soft Matter Physics), 2004, Vol 70, Issue 3
LONG-RANGE; MOVING BREATHERS; DISCRETE BREATHERS; TODA LATTICE MODEL; NONLINEAR MODEL; ENERGY LOCALIZATION; KLEIN-GORDON MODEL; DENATURATION; DYNAMICS; CHAIN