Model of a Programmable Quantum Processing Device

TL;DR

This paper introduces a model for a programmable quantum processing device using nanophotonics, detailing protocols for quantum gates, analyzing its operation, and formalizing its architecture for universal quantum computation.

Contribution

It presents a new physical and mathematical model for a scalable, programmable quantum computer based on nanophotonic technology.

Findings

Protocols for single- and multi-qubit gates demonstrated

Physical implementation feasible with existing nanophotonics

Framework supports universal quantum computation

Abstract

We propose a model of a programmable quantum processing device realizable with existing nanophotonic technologies and which can be viewed as a basis for new high performance hardware architectures. We present protocols and their physical implementation on the controlled photon transfer for executing basic single-qubit and multi-qubit gates. The possible operation of this quantum computer scheme is analyzed. The physical architecture is then formalized by a mathematical model of the Quantum Processing Unit (QPU), which is used as a basis for the Quantum Programming Framework that makes it possible to perform universal quantum computations in a multitasking environment.