Abstract
So far we have considered observables represented by a single quantal ‘bit’, or a pair of qubits. These could be of hermitean type, as in Sects. 2.1 and 2.2, or of pseudo-hermitean type, as in the last two sections. In quantal information processing, and in quantized field theory, the matrix representation of a ‘tape’, consisting of several or even many qubits of the same type, is required. This can be constructed by direct multiplication from the representations of the separate qubits, which may be but are not necessarily of the same type. The simplest example, where no more than two qubits were involved, was considered in Sect. 3.4.
Keywords
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2000 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Green, H.S. (2000). Quantal ‘Tapes’. In: Information Theory and Quantum Physics. Texts and Monographs in Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-57162-6_4
Download citation
DOI: https://doi.org/10.1007/978-3-642-57162-6_4
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-63061-3
Online ISBN: 978-3-642-57162-6
eBook Packages: Springer Book Archive