QUANTUM INFORMATION IN A DISTRIBUTED APPARATUS

Authors
KAK SC
Citation
Sc. Kak, QUANTUM INFORMATION IN A DISTRIBUTED APPARATUS, Foundations of physics, 28(6), 1998, pp. 1005-1012
Citations number
13
Categorie Soggetti
Physics
Journal title
Foundations of physics → ACNP
ISSN journal
00159018
Volume
28
Issue
6
Year of publication
1998
Pages
1005 - 1012
Database
ISI
SICI code
0015-9018(1998)28:6<1005:QIIADA>2.0.ZU;2-A
Abstract
We investigate the information provided about a specified distributed apparatus of n units in the measurement of a quantum state. It is show n that, in contrast io such measurement of a classical state, which is bounded by log(n + 1) bits, the information in a quantum measurement is bounded by 3.7 x n(1/2) bits. This means that the use of quantum ap paratus offers an exponential advantage over classical apparatus.