Implementation of controlled-NOT quantum gate by nonlinear coupled electro-nano-optomechanical oscillators

TL;DR

This paper explores implementing a CNOT quantum gate using nonlinear coupled electro-nano-optomechanical oscillators, demonstrating feasibility under ideal conditions with negligible dissipation.

Contribution

It proposes a novel method for quantum gate implementation leveraging phononic states in a coupled nanobeam optomechanical system with nonlinear dynamics.

Findings

CNOT gate feasible under non-resonance and negligible dissipation.

Utilizes 4th order Duffing nonlinearity in phononic states.

System involves coupled nanobeams driven by electrical potentials.

Abstract

Feasibility study is done for the possibility of universal set of quantum gate implementation based on phononic state via 4th order Duffing nonlinearity in an optomechanical system. The optomechanical system consists of N doubly clamped coupled nanobeam array drived by local static and radio frequency electrical potentials, coupled to a single-mode high finesse optical cavity. The results show that ideal CNOT gate can be implemented only under non-resonance dynamics when the dissipation processes are negligible.