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Generation of Entanglement in Qutrit Spin Coherent States by Nonlinear Hamiltonian | ||
| Journal of Sciences, Islamic Republic of Iran | ||
| مقاله 6، دوره 32، شماره 4، اسفند 2021، صفحه 359-365 اصل مقاله (650.13 K) | ||
| نوع مقاله: Original Paper | ||
| شناسه دیجیتال (DOI): 10.22059/jsciences.2022.325672.1007653 | ||
| نویسندگان | ||
| Azita Naji* ؛ N. Shadman | ||
| Department of Physics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Islamic Republic of Iran | ||
| چکیده | ||
| We study entanglement in coherent spin states and several superpositions of multi-qutrit coherent states evolved under the one-axis counter-twisting Hamiltonian in the presence and absence of a magnetic field. Considering a non-entangled multi-qutrit spin coherent state as an initial one, it is found that the entanglement is instigated with an oscillatory behavior in time; however, its average is a decreasing function of the magnetic field. Also, we observe that under this Hamiltonian, the two-qutrit superposed state retains its maximum entanglement with no change, while, the negativity for the three-qutrit superposed state oscillates in time and its average increases in the presence of the magnetic field. | ||
| کلیدواژه‌ها | ||
| Entanglement؛ Qutrit؛ Coherent states؛ One-axis counter-twisting Hamiltonian | ||
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آمار تعداد مشاهده مقاله: 277 تعداد دریافت فایل اصل مقاله: 437 |
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