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Coherent States and Their Role in Quantum Information Theory

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în volumul unei conferinţe

Autori: Popov Duşan, ZAHARIE Ioan, Sajfert V., Popov D. Dejan

Editorial: BPU 6 - Sixth International Conference of the Balkan Physical Union, 22-26.08.2006, Istanbul, Turkey, 899, p.640, 2007.

Rezumat:

The qubit, i.e. the fundamental unit of information in the quantum theory of information (QIT), can be expressed through the coherent states (CSs). Consequently, a message, i.e. a sequence of qubits, is a tensor product of CSs. For ensembles of qubits, it must use the density operator (DO), which can be written also in the CSs representation

Cuvinte cheie: quantum theory, information theory