Quantum Steering in Two- and Three-Mode PT-Symmetric Systems

被引：2

作者：

Vinh Le Duc ^{[1
]}

Kalaga, Joanna K. ^{[1
,2
,3
]}

Leonski, Wieslaw ^{[1
,2
,3
]}

Nowotarski, Mateusz ^{[1
]}

Gruszka, Konrad ^{[4
]}

Kostrzewa, Malgorzata ^{[5
]}

机构：

[1] Univ Zielona Gora, Inst Phys, Quantum Opt & Engn Div, Prof Z Szafrana 4a, PL-65516 Zielona Gora, Poland

[2] Palacky Univ, Joint Lab Opt, 17 Listopadu 12, Olomouc 77146, Czech Republic

[3] Palacky Univ, Fac Sci, Inst Phys CAS, 17 Listopadu 12, Olomouc 77146, Czech Republic

[4] Czestochowa Tech Univ, Dept Phys, Ave Armii Krajowej 19, PL-42200 Czestochowa, Poland

[5] Jan Dlugosz Univ Czestochowa, Div Theoret Phys, Ave Armii Krajowej 13-15, PL-42200 Czestochowa, Poland

来源：

SYMMETRY-BASEL | 2021年 / 13卷 / 11期

关键词：

PT-symmetry; quantum correlations; quantum steering; cavity; PARITY-TIME SYMMETRY; PODOLSKY-ROSEN PARADOX;

D O I：

10.3390/sym13112201

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We consider two PT-symmetric models, consisting of two or three single-mode cavities. In both models, the cavities are coupled to each other by linear interactions, forming a linear chain. Additionally, the first and last of such cavities interact with an environment. Since the models are PT-symmetric, they are described by non-Hermitian Hamiltonians that, for a specific range of system parameters, possess real eigenvalues. We show that in the models considered in the article, the steering generation process strongly depends on the coupling strengths and rates of the gains/losses in energy. Moreover, we find the values of parameters describing the system for which the steering appears.

引用

页数：12

共 41 条

[1] Hamiltonian formulation of the standard PT-symmetric nonlinear Schrodinger dimer [J].