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6 papers · 2 filters
On stimulated transitions between the self-trapped states of the nonlinear Schrodinger equation
P. V. Elyutin, A. N. Rogovenko
The studied model describes a particle that obeys a one-dimensional nonlinear Schrödinger equation in the potential of a double-well. Transitions between the two lowest self-trappe…
Coherent information analysis of quantum channels in simple quantum systems
B. A. Grishanin, V. N. Zadkov
The coherent information concept is used to analyze a variety of simple quantum systems. Coherent information was calculated for the information decay in a two-level atom in the pr…
First-order interference of nonclassical light emitted spontaneously at different times
Yoon-Ho Kim, Maria V. Chekhova, Sergei P. Kulik +2
We study first-order interference in spontaneous parametric down-conversion generated by two pump pulses that do not overlap in time. The observed modulation in the angular distrib…
Analysis of radiatively stable entanglement in a system of two dipole-interacting three-level atoms
I. V. Bargatin, B. A. Grishanin, V. N. Zadkov
We explore the possibilities of creating radiatively stable entangled states of two three-level dipole-interacting atoms in a configuration by means of laser biharmonic continu…
Polarization state of a biphoton: quantum ternary logic
A. V. Burlakov, M. V. Chekhova, O. A. Karabutova +2
Polarization state of biphoton light generated via collinear frequency-degenerate spontaneous parametric down-conversion is considered. A biphoton is described by a three-component…
Generation of entanglement in a system of two dipole-interacting atoms by means of laser pulses
I. V. Bargatin, B. A. Grishanin, V. N. Zadkov
Effectiveness of using laser field to produce entanglement between two dipole-interacting identical two-level atoms is considered in detail. The entanglement is achieved by driving…