The Bipartite and Tripartite Entanglement in PT-Symmetric System

被引：1
|
作者：
Duc, Vinh Le [1 ]
Nowotarski, Mateusz [1 ]
Kalaga, Joanna K. [1 ,2 ,3 ]
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, CAS, Inst Phys, 17 Listopadu 12, Olomouc 77146, Czech Republic
来源：
SYMMETRY-BASEL | 2021年 / 13卷 / 02期
关键词：
PT-symmetry; bipartite entanglement; tripartite entanglement; negativity;
D O I：
10.3390/sym13020203
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 a PT-symmetric system that involves three optical resonant elements coupled together. We investigate the quantum correlations between subsystems by calculating bipartite and tripartite entanglement. We show that when PT-symmetry is maintained, the correlations between subsystems strongly depend on the parameters describing the interaction between them and characterizing the gain and loss of energy in the system's active and passive elements. We estimate the range of interaction parameter values for which the strongest bipartite and tripartite entanglement can be produced. Additionally, we show that the discussed system can be a source of stable entangled states.
引用
收藏
页码：1 / 15
页数：15
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