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

TL;DR

This paper investigates the potential for high-temperature superconductivity in DNA duplexes by analyzing polaron and bipolaron states, suggesting DNA could serve as a basis for superconducting nanowires with transition temperatures around 350 K.

Contribution

It introduces a theoretical model for polaron and bipolaron states in DNA and estimates their stability and transition temperature, proposing DNA as a candidate for superconducting nanowires.

Findings

Bipolaron states are especially stable in PolyA/PolyT DNA duplexes.

Estimated bipolaron decay temperature is approximately 350 K.

DNA can potentially be used to construct superconducting nanowires.

Abstract

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