Types of quantum information

Abstract

Quantum, in contrast to classical, information theory, allows for different incompatible types (or species) of information which cannot be combined with each other. Distinguishing these incompatible types is useful in understanding the role of the two classical bits in teleportation (or one bit in one-bit teleportation), for discussing decoherence in information-theoretic terms, and for giving a proper definition, in quantum terms, of ``classical information.'' Various examples (some updating earlier work) are given of theorems which relate different incompatible kinds of information, and thus have no counterparts in classical information theory.

Minor changes so as to agree with published version

References in corpus (21)

• Decoherence, einselection, and the quantum origins of the classical
• The Quantum Jump Approach to Dissipative Dynamics in Quantum Optics
• Classical Equations for Quantum Systems
• Semiclassical Fourier Transform for Quantum Computation
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• Channel kets, entangled states, and the location of quantum information
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Cited by in corpus (13)

• Information theoretic treatment of tripartite systems and quantum channels
• Unification of different views of decoherence and discord
• Efficient implementation of bipartite nonlocal unitary gates using prior entanglement and classical communication
• Generalized Semi-Quantum Secret Sharing Schemes
• Accessing quantum secrets via local operations and classical communication
• Location of quantum information in additive graph codes
• Information Content of Systems as a Physical Principle
• On the Ollivier-Poulin-Zurek definition of objectivity
• Consistent histories for tunneling molecules subject to collisional decoherence
• Non-negative discord strengthens the subadditivity of quantum entropy functions
• Epistemic Restrictions in Hilbert Space Quantum Mechanics
• Quantum Information: What Is It All About?
• Separable Operations, Graph Codes and the Location of Quantum Information