Coherent States and Their Role in Quantum Information Theory
D. Popov, I. Zaharie, V. Sajfert, and D. D. Popov
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 ca ... [AIP Conf. Proc. 899, 640 (2007)] published Fri Apr 27, 2007.