Zeeman Effects on the Entanglement of Non-Equilibrium Finite-Spin Systems

Proceedings

Nakagawa, Koichi¹ 

关键词: entanglement entropy;    thermofield dynamics;    extended density matrix;    equilibrium;    non-equilibrium finite-spin systems;    dissipative von Neumann equation;    zeeman effect;   

DOI  :  10.3390/ecea-4-05003

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

We study the Zeeman effect on entanglement of non-equilibrium finite-spin systems with external fields using a method based on thermofield dynamics (TFD). For this purpose, the extended density matrices and extended entanglement entropies of two systems with either non-competing or competing external fields are calculated according to the dissipative von Neumann equation, and the numerical results are compared. Consequently, through the “twin-peaks” oscillations of the quantum entanglement, we have illustrated the Zeeman effect on the entanglement of non-equilibrium finite-spin systems with competing external fields in the TFD algorithm.

【 授权许可】

CC BY