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بررسی همدوسی کوانتومی و ظرفیت کدگذاری چگال در یک سامانة دو کیوبیتی ابررسانا | ||
| فصلنامه علمی اپتوالکترونیک | ||
| مقاله 17، دوره 8، شماره 2 - شماره پیاپی 23، دی 1404، صفحه 29-38 اصل مقاله (1.15 M) | ||
| نوع مقاله: پژوهشی | ||
| شناسه دیجیتال (DOI): 10.30473/jphys.2025.73873.1237 | ||
| نویسندگان | ||
| مینا شیری* 1؛ مهرداد قمی نژاد2؛ محمدرضا پورکریمی3 | ||
| 1دانشجوی دکتری، گروه فیزیک، دانشگاه سمنان، سمنان، ایران. | ||
| 2دانشیار، گروه فیزیک، دانشگاه سمنان، سمنان، ایران. | ||
| 3دانشیار، گروه فیزیک، دانشگاه سلمان فارسی کازرون، کازرون، ایران. | ||
| چکیده | ||
| در این مقاله ما یک سامانۀ دو کیوبیت بار ابررسانای یکسان را مدلسازی میکنیم که در آن اتصالات جوزفسون با یک خازن ثابت جفت شدهاند. در این مدل، تاثیرات دما، انرژی جوزفسون و انرژی جفتشدگی متقابل بین دو کیوبیت تحت افزایش یا کاهش همدوسی و ظرفیت کدگذاری چگال(DCC) بررسی شدند. نتایج حاکی از آن است که افزایش دما به کاهش همدوسی و ظرفیت کدگذاری چگال منجر میشود، درحالیکه انرژی جفتشدگی متقابل به افزایش این دو کمیت کمک میکند. از سوی دیگر انرژی جوزفسون تاثیری مخالف با انرژی جفتشدگی متقابل دارد و همدوسی و ظرفیت کدگذاری چگال را کاهش میدهد. | ||
| کلیدواژهها | ||
| سامانه دو کیوبیتی؛ همدوسی کوانتومی؛ ظرفیت کدگذاری چگال | ||
| عنوان مقاله [English] | ||
| Investigation of Quantum Coherence and Dense Coding Capacity in a Two-Qubit Superconducting System | ||
| نویسندگان [English] | ||
| Mina shiri1؛ Mehrdad Ghominejad2؛ Mohammad Reza Pourkarimi3 | ||
| 11. Ph.D. Student, Faculty of Physics, Semnan University, P.O.Box 35195- 363, Semnan, Iran | ||
| 2Associate Professor, Faculty of Physics, Semnan University, P.O.Box 35195-363, Semnan, Iran | ||
| 3Associate Professor Department of Physics, Salman Farsi University of Kazerun, Kazerun, Iran. | ||
| چکیده [English] | ||
| In this paper, we model a two-qubit system of identical superconducting charge qubits, where Josephson junctions are coupled via a fixed capacitor. In this model, the effects of temperature, Josephson energy, and mutual coupling energy between the two qubits under increase or decrease of coherence and dense coding capacity (DCC) examined. The results indicate that increasing temperature leads to a reduction in coherence and DCC, while mutual coupling energy contributes to increase in these two quantities. On the other hand, Josephson energy has an effect opposite to mutual coupling energy, reducing both coherence and DCC. | ||
| کلیدواژهها [English] | ||
| Two-Qubit System, Quantum Coherence, Dense Coding Capacity | ||
| مراجع | ||
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