Quantum Interface by SPPs and photons

Abstract

One of the most desired requirements in quantum information technology is to interconvert between flying qubits and stationary qubits. As an intermediate study, we consider the composite system of surface plasmon polaritons(SPPs), qunatum lights and their interconversion for a quantum interface. Otto’s configuration is proposed for the purpose. We show that the composite system can approximately be modeled as an operation consisting of three consecutive splittings : one splitting of incident light to reflected radiation and excited SPP field, another splitting of the excited field to a perturbed radiation and propagating SPP filed, and the other splitting of the propagating SPP field to damped field. We formulate and analyze the present study in the framework of quantum theory.