Possibility of a (bi)polaron high-temperature superconductivity in Poly A/ Poly T DNA duplexes

摘要

Dynamical equations for a polaron and bipolaron in a DNA duplex are obtainedon the basis of Holstein-Hubbard Hamiltonian. It is shown that in a PolyA/PolyTduplex especially stable is a bipolaron state in which holes are localized ondifferent chains of the duplex. With the use of the polaron and bipolaron freeenergy, the temperature of bipolaron decay is found to be T_d \approx 350 Kwhich can serve as an approximate estimate of the superconducting transitiontemperature. The way of constructing superconducting nanowires on the basis ofDNA is suggested.