Density Operator in Terms of Coherent States Representation with the Applications in the Quantum Information
Abstract
In the quantum information theory operates with qubits and N-qubits that can be express through coherent states. Density operator admits a representation in terms of coherent states formalism. Consequently, in this paper the notions of qubit and density operators are described in the framework of coherent states. We have expressed a qubit as a coherent state, and thus a sequence of qubits becomes the tensor product of the coherent states. For the ensembles of qubits, it could be used the density operator, in order to describe the informational content of the ensemble. The coherent states representation may play an important role in the quantum information theory and the use of this formalism is not only theoretical, but also, due to its applications, of some practical relevance.
Keywords:
Qubits / Quantum information / Coherent states / Density operatorSource:
International Journal of Theoretical Physics, 2013, 52, 7, 2275-2283
DOI: 10.1007/s10773-013-1508-4
ISSN: 0020-7748
WoS: 000319769700011
Scopus: 2-s2.0-84878581188
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Institution/Community
GraFarTY - JOUR AU - Pop, Nicolina AU - Popov, Dejan AU - Davidović, Milena PY - 2013 UR - https://grafar.grf.bg.ac.rs/handle/123456789/520 AB - In the quantum information theory operates with qubits and N-qubits that can be express through coherent states. Density operator admits a representation in terms of coherent states formalism. Consequently, in this paper the notions of qubit and density operators are described in the framework of coherent states. We have expressed a qubit as a coherent state, and thus a sequence of qubits becomes the tensor product of the coherent states. For the ensembles of qubits, it could be used the density operator, in order to describe the informational content of the ensemble. The coherent states representation may play an important role in the quantum information theory and the use of this formalism is not only theoretical, but also, due to its applications, of some practical relevance. T2 - International Journal of Theoretical Physics T1 - Density Operator in Terms of Coherent States Representation with the Applications in the Quantum Information EP - 2283 IS - 7 SP - 2275 VL - 52 DO - 10.1007/s10773-013-1508-4 ER -
@article{ author = "Pop, Nicolina and Popov, Dejan and Davidović, Milena", year = "2013", abstract = "In the quantum information theory operates with qubits and N-qubits that can be express through coherent states. Density operator admits a representation in terms of coherent states formalism. Consequently, in this paper the notions of qubit and density operators are described in the framework of coherent states. We have expressed a qubit as a coherent state, and thus a sequence of qubits becomes the tensor product of the coherent states. For the ensembles of qubits, it could be used the density operator, in order to describe the informational content of the ensemble. The coherent states representation may play an important role in the quantum information theory and the use of this formalism is not only theoretical, but also, due to its applications, of some practical relevance.", journal = "International Journal of Theoretical Physics", title = "Density Operator in Terms of Coherent States Representation with the Applications in the Quantum Information", pages = "2283-2275", number = "7", volume = "52", doi = "10.1007/s10773-013-1508-4" }
Pop, N., Popov, D.,& Davidović, M.. (2013). Density Operator in Terms of Coherent States Representation with the Applications in the Quantum Information. in International Journal of Theoretical Physics, 52(7), 2275-2283. https://doi.org/10.1007/s10773-013-1508-4
Pop N, Popov D, Davidović M. Density Operator in Terms of Coherent States Representation with the Applications in the Quantum Information. in International Journal of Theoretical Physics. 2013;52(7):2275-2283. doi:10.1007/s10773-013-1508-4 .
Pop, Nicolina, Popov, Dejan, Davidović, Milena, "Density Operator in Terms of Coherent States Representation with the Applications in the Quantum Information" in International Journal of Theoretical Physics, 52, no. 7 (2013):2275-2283, https://doi.org/10.1007/s10773-013-1508-4 . .