Mathematical modeling of processes in quantum computer elements based on methods of quantum theory to improve their efficiency

被引：0

作者：

Biryukov, A. A. ^{[1
]}

Shleenkov, M. A. ^{[2
]}

机构：

[1] Samara State Transport Univ, Svoboda Str 2V, Samara 443066, Russia

[2] Samara Natl Res Univ, Moskovskoe Shosse 34, Samara 443086, Russia

来源：

COMPUTER OPTICS | 2024年 / 48卷 / 06期

关键词：

qubits; quantum entanglement; Peres-Gorodeckii parameter; path integration; ENTANGLEMENT;

D O I：

10.18287/2412-6179-CO-1489

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The paper studies entangled states of two qubits interacting with each other and with an electromagnetic field. The state of the qubits is determined by a statistical density matrix. The degree of entanglement of the state is characterized by the Peres-Gorodeckii (PG) parameter. The statistical density matrix and its evolution are determined in the energy representation within the framework of the path integral formalism. The obtained equations determine the dependence of the PG parameter on the parameters of qubit dipole-dipole interaction and the acting electromagnetic field. The results of numerical calculations are presented in graphs for the PG parameter. It is shown that it is possible to choose parameters corresponding to qubit states with a high degree of entanglement (0.99).

引用

页码：889 / 893

页数：5

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