Geodesic
Controlled phase transformation of quantum states of an electromagnetic field in a high-quality cavity
Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki, Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, Tome 155 (2013) no. 1, pp. 106-112 Cet article a éte moissonné depuis la source Math-Net.Ru

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This paper deals with the optical realization of a probabilistic operation of controlled phase transformation of three quantum modes of an electromagnetic field in a high-quality cavity. The required interaction between the modes is reached by a Rydberg atom passing through the cavity. The conditional Kraus operators formalism is used to estimate the atom-field interaction time and the coupling constants. Approximate values of the phase transformation probability and fidelity are obtained.
Keywords: phase gate, high-quality cavity, Rydberg atom, conditional state, Kraus operator. 
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     title = {Controlled phase transformation of quantum states of an electromagnetic field in a~high-quality cavity},
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G. P. Miroshnichenko; A. I. Trifanov. Controlled phase transformation of quantum states of an electromagnetic field in a high-quality cavity. Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki, Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, Tome 155 (2013) no. 1, pp. 106-112. http://geodesic.mathdoc.fr/item/UZKU_2013_155_1_a14/

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