Abstract
Information, for a given ensemble of systems and type of measurement, is the average amount of error-free data gained per measurement. This amount is quantified by the number of bits required to represent the data. Thus, if a grain of wheat is placed at random on a chessboard, a measurement of which square is occupied yields log2 64 = 6 bits of information; a measurement of which column is occupied yields log2 8 = 3 bits etc. Such information can be used for communication purposes, where each square (each column, etc.) is associated with a symbol or codeword.
© 1996 Optical Society of America
PDF ArticleMore Like This
Carlton M. Caves and Samuel L. Braunstein
QTuM2 Quantum Electronics and Laser Science Conference (CLEO:FS) 1992
Carlton M. Caves
MFFF.2 OSA Annual Meeting (FIO) 1993
SM Barnett, N Liitkenhaus, SJD Phoenix, PD Townsend, KJ Blow, B Huttner, and N Imoto
FK1 International Quantum Electronics Conference (IQEC) 1996