Unbiased measurements
Alexander Semenovich Holevo · Edizioni della Normale eBooks · 2011
Consider the idealized scheme of information transmission presented at Figure 6.1 . In the absence of signal the physical carrier of information C (say, electromagnetic field) is in a state S . Usually it is adopted that S is the equilibrium (Gibbs) state at the given temperature. Transmission of a signal is accomplished through an influence of the communication source L onto the system C , which forces a definite change in its state. If there are parameters of the source L which can be varied, then the resulting state S θ will depend on the values of these parameters θ . Fiogure 6.1. 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.