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.

To appear in Contemporary Physics

References in corpus (4)

• Experimental Quantum State Tomography of Optical Fields and Ultrafast Statistical Sampling
• Optimal unambiguous discrimination of two subspaces as a case in mixed state discrimination
• Experimental realization of programmable quantum gate
• Application of quantum algorithms to the study of permutations and group automorphisms

Cited by in corpus (3)

• Training Schrödinger's cat: quantum optimal control
• Electric fields for light: Propagation of microwave photons along a synthetic dimension
• The speed of quantum and classical learning for performing the k-th root of NOT