تقرير
High fidelity single-shot readout of a transmon qubit using a SLUG {\mu}wave amplifier
| العنوان: | High fidelity single-shot readout of a transmon qubit using a SLUG {\mu}wave amplifier |
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| المؤلفون: | Liu, Yanbing, Srinivasan, Srikanth, Hover, D., Zhu, Shaojiang, McDermott, R., Houck, A. A. |
| المصدر: | New J. Phys. 16 113008 (2014) |
| سنة النشر: | 2014 |
| المجموعة: | Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics |
| الوصف: | We report high-fidelity, quantum nondemolition, single-shot readout of a superconducting transmon qubit using a DC-biased superconducting low-inductance undulatory galvanometer(SLUG) amplifier. The SLUG improves the system signal-to-noise ratio by 7 dB in a 20 MHz window compared with a bare HEMT amplifier. An optimal cavity drive pulse is chosen using a genetic search algorithm, leading to a maximum combined readout and preparation fidelity of 91.9% with a measurement time of Tmeas = 200ns. Using post-selection to remove preparation errors caused by heating, we realize a combined preparation and readout fidelity of 94.3%. Comment: 4 pages and 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1367-2630/16/11/113008 |
| URL الوصول: | http://arxiv.org/abs/1401.5184 |
| رقم الأكسشن: | edsarx.1401.5184 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1367-2630/16/11/113008 |
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