Quantum half-adder Boolean logic gate with a nano-graphene molecule and graphene nano-electrodes

Saurabh Srivastava (1) , Hiori Kino (1) , Christian Joachim (2)

1 NIMS - National Institute for Materials Science
2 CEMES-GNS - Groupe NanoSciences

A molecule Boolean 1/2-adder is designed and the XOR and AND truth table calculated at +0.1 V using 4 graphene electrodes. It functions with level repulsion and destructive interferences effects using 4 molecule electronic states in a quantum Hamiltonian computing approach (QHC) with the abrupt change of the molecular orbital weight of those 4 calculating states as a function of the logical input configuration. The logical inputs enter rotating the two nitro groups of the central board. With QHC, a complex Boolean digital function can be implemented employing the same graphene material for interconnects and the molecule calculating parts.

Mots clés: Graphene; Logic Gates; Quantum Transport; Quantum Computing; Molecular electronics; Half-Adder

Domaines: Physique [physics]

Saurabh Srivastava, Hiori Kino, Christian Joachim. Quantum half-adder Boolean logic gate with a nano-graphene molecule and graphene nano-electrodes. Chemical Physics Letters, 2017, 667, pp.301-306. ⟨10.1016/j.cplett.2016.11.009⟩. ⟨hal-01712749⟩