تقرير
$d$-mon: transmon with strong anharmonicity
| العنوان: | $d$-mon: transmon with strong anharmonicity |
|---|---|
| المؤلفون: | Patel, Hrishikesh, Pathak, Vedangi, Can, Oguzhan, Potter, Andrew C., Franz, Marcel |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity, Condensed Matter - Mesoscale and Nanoscale Physics, Quantum Physics |
| الوصف: | We propose a novel qubit architecture based on a planar $c$-axis Josephson junction between a thin flake $d$-wave superconductor ($d$SC), such as a high-$T_c$ cuprate Bi$_2$Sr$_2$CaCu$_2$O$_{8+x}$, and a conventional $s$-wave superconductor. When operated in the transmon regime the device -- that we call "$d$-mon" -- becomes insensitive to offset charge fluctuations and, importantly, exhibits at the same time energy level spectrum with strong anharmonicity that is widely tunable through the device geometry and applied magnetic flux. Crucially, unlike previous qubit designs based on $d$-wave superconductors the proposed device operates in a regime where quasiparticles are fully gapped and can be therefore expected to achieve long coherence times. Comment: 4 pages main text + 6 pages SM; V2: corrected typos and updated references |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2308.02547 |
| رقم الأكسشن: | edsarx.2308.02547 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |