13: Quantum Information
- Page ID
- 50235
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In Chapter 10 of these notes the multi-state model for quantum systems was presented. This model was then applied to systems intended for energy conversion in Chapter 11 and Chapter 12. Now it is applied to systems intended for information processing.
The science and technology of quantum information is relatively new. The concept of the quantum bit (named the qubit) was first presented, in the form needed here, in 1995. There are still many unanswered questions about quantum information (for example the quantum version of the channel capacity theorem is not known precisely). As a result, the field is in a state of flux. There are gaps in our knowledge.