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Source: Entropy. 2021. Vol. 23, № 5. P. 549 (1-19)
Type: статьи в журналах
Date: 2021
Description:
The review of new formulation of conventional quantum mechanics where the quantum states are identified with probability distributions is presented. The invertible map of density operators and wave fu
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Source: Symmetry. 2021. Vol. 13, № 1. P. 131 (1-17)
Type: статьи в журналах
Date: 2021
Description:
We review the method of quantizers and dequantizers to construct an invertible map of the density operators onto functions including probability distributions and discuss in detail examples of qubit a
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Source: Entropy. 2020. Vol. 22, № 5. P. 586 (1-25)
Type: статьи в журналах
Date: 2020
Description:
In a differential approach elaborated, we study the evolution of the parameters of Gaussian, mixed, continuous variable density matrices, whose dynamics are given by Hermitian Hamiltonians expressed a
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Source: Physica scripta. 2020. Vol. 95, № 2. P. 024004 (1-8)
Type: статьи в журналах
Date: 2020
Description:
A system of a quantum harmonic oscillator bi-linearly coupled with a Glauber amplifier is
Source: Physics letters A. 2020. Vol. 384, № 17. P. 126349 (1-7)
Type: статьи в журналах
Date: 2020
Description:
We consider the quantization procedure and investigate the application of the quantizer–dequantizer method and star-product technique to construct associative products and the associative algebras for
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Source: Entropy. 2019. Vol. 21, № 8. P. 736 (1-12)
Type: статьи в журналах
Date: 2019
Description:
The evolution of an open system is usually associated with the interaction of the system with an environment. A new method to study the open-type system evolution of a qubit (two-level atom) state is
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Source: Quantum information processing. 2019. Vol. 18, № 7. P. 210 (1-14)
Type: статьи в журналах
Date: 2019
Description:
A method to establish a qubit decomposition of a general qudit state is presented. This new representation allows a geometrical depiction of any qudit state in the Bloch sphere. Additionally, we show
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Source: Physica A: statistical mechanics and its applications. 2019. Vol. 533. P. 121898 (1-11)
Type: статьи в журналах
Date: 2019
Description:
Qutrit quantum observables are simulated by the set of classical-like random variables. Statistical properties of the quantum observables are expressed in terms of the statistical moments of classical
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Source: International journal of theoretical physics. 2019. Vol. 58, № 6. P. 2054-2067
Type: статьи в журналах
Date: 2019
Description:
Review of the probability representation of qubit states and observables is presented as well as the picture of states of two-level systems in terms of Triada of Malevich’s squares. A new relation of
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Source: Physical Review E. 2018. Vol. 97, № 2. P. 022128-1-022128-10
Type: статьи в журналах
Date: 2018
Description:
The positivity conditions of the relative entropy between two thermal equilibrium states $hat{
Source: Entropy. 2018. Vol. 20, № 9. P. 630 (1-17)
Type: статьи в журналах
Date: 2018
Description:
A new geometric representation of qubit and qutrit states based on probability simplexes is used to describe the separability and entanglement properties of density matrices of two qubits. The Peres--
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Source: Entropy. 2018. Vol. 20, № 9. P. 692 (11-17)
Type: статьи в журналах
Date: 2018
Description:
We study an analog of Bayes’ formula and the nonnegativity property of mutual information for systems with one random variable. For single-qudit states, we present new entropic inequalities in the for
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Source: Journal of Physics: Conference Series. 2018. Vol. 1071. P. 012008 (1-13)
Type: статьи в журналах
Date: 2018
Description:
Review of tomographic probability representation of quantum states is presented both for oscillator systems with continious variables and spin–systems with discrete variables. New entropy–information
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Source: Russian physics journal. 2017. Vol. 59, № 11. P. 1937-1941
Type: статьи в журналах
Date: 2017
Description:
We consider the entropy-energy inequality for a three-level atom implemented on superconducting circuits with the Josephson junction. It is suggested to use the positivity of the relative entropy of t
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Source: Journal of Russian laser research. 2017. Vol. 38, № 6. P. 507-515
Type: статьи в журналах
Date: 2017
Description:
We consider tomograms and quasidistribution functions like the Wigner functions that violate the standard normalization condition and obtain the conditions under which a reconstruction of the density
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