Quantum Machines

TL;DR

This paper explores quantum information processing machines, focusing on single-purpose and programmable machines, discussing their functions, examples, and the potential utility of quantum programs in quantum computing.

Contribution

It introduces the concept of programmable quantum machines controlled by quantum states, expanding the understanding of quantum computation capabilities.

Findings

Single-purpose machines can redistribute or identify quantum states

Programmable machines can perform multiple functions based on quantum programs

Discussion of deterministic and probabilistic quantum machines

Abstract

We discuss quantum information processing machines. We start with single purpose machines that either redistribute quantum information or identify quantum states. We then move on to machines that can perform a number of functions, with the function they perform being determined by a program, which is itself a quantum state. Examples of both deterministic and probabilistic programmable machines are given, and we conclude with a discussion of the utility of quantum programs.