فاز هندسی برای حالت همدوس درهم‌تنیدة دو بخشی کیوتریت گونه

محمدی الماس, ساناز; نجارباشی, قادر; توانا, علی

doi:10.22055/jrmbs.2022.17904

فاز هندسی برای حالت همدوس درهم‌تنیدة دو بخشی کیوتریت گونه

نوع مقاله : مقاله پژوهشی کامل

نویسندگان

گروه آموزشی فیزیک، دانشکده علوم، دانشگاه محقق اردبیلی، اردبیل، ایران

10.22055/jrmbs.2022.17904

چکیده

حالت‌های همدوس نزدیکترین حالت به حالت‌های کلاسیکی، نقش ویژه‌ای در اپتیک کوآنتومی دارند. در این مقاله، فاز هندسی برای حالت همدوس درهم‌تنیدة دو بخشی کیوتریت گونه تحت تحول یکانی و دوره‌ای محاسبه شده است. درجة درهم‌تنیدگی حالت همدوس قبل و بعد از تحول با استفاده از سنجة تلاقی محاسبه و با فاز هندسی مقایسه شده است. نشان می‌دهیم که فاز هندسی و سنجة تلاقی نسبت به پارامتر تحول زمانی به‌صورت معکوس تغییر می‌یابند، بدین معنی که افزایش یکی با کاهش دیگری همراه است. در آخر، یک طرح تجربی برای تولید حالت همدوس درهم‌تنیدة دو مده بر پایة تداخل‌سنج ارائه می‌دهیم.

کلیدواژه‌ها

موضوعات

فیزیک اطلاعات کوانتومی

عنوان مقاله [English]

Geometric phase for two-partite qutrit-like entangled coherent state

نویسندگان [English]

Sanaz Mohamadi Almas
Ghader Najarbashi
Ali Tavana

University of Mohaghegh Ardabili. Ardabil. Iran

چکیده [English]

Coherent states, most close state to the classical states, have special role in quantum optics. In this paper, the geometric phase of the two-partite qutri-like entangled coherent state undergoing a unitary and cyclic evolution is calculated. Using the concurrence measure,the degree of entanglement of the state before and after the evolution is calculated and compared with the geometric phase.We show that the geometric phase and concurrence,as a function of the time evolution parameter, are inversely change, in the sense that the increase of one is accompanied by a decrease of the other.Finally, we suggest an experimental realization to the production of the two-mode entangled coherent state based on the interferometry scheme.

کلیدواژه‌ها [English]

geometric phase
coherent state
concurrence

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