Optical Hybrid Quantum Information Processing

TL;DR

This paper reviews the development of optical quantum information processing using qubits and continuous variables, and discusses recent progress in hybrid schemes for quantum teleportation with potential for universal quantum computing.

Contribution

It introduces recent advancements in hybrid quantum teleportation schemes that combine qubit and continuous-variable approaches for improved quantum information processing.

Findings

Successful demonstration of hybrid quantum teleportation

Potential for universal and fault-tolerant quantum computing

Enhanced capabilities over traditional single-approach methods

Abstract

Historically, two complementary approaches to optical quantum information processing have been pursued: qubits and continuous-variables, each exploiting either particle or wave nature of light. However, both approaches have pros and cons. In recent years, there has been a significant progress in combining both approaches with a view to realizing hybrid protocols that overcome the current limitations. In this chapter, we first review the development of the two approaches with a special focus on quantum teleportation and its applications. We then introduce our recent research progress in realizing quantum teleportation by a hybrid scheme, and mention its future applications to universal and fault-tolerant quantum information processing.