تقرير
Harnessing two-photon dissipation for enhanced quantum measurement and control
| العنوان: | Harnessing two-photon dissipation for enhanced quantum measurement and control |
|---|---|
| المؤلفون: | Marquet, Antoine, Dupouy, Simon, Réglade, Ulysse, Essig, Antoine, Cohen, Joachim, Abertinale, Emanuele, Bienfait, Audrey, Peronnin, Théau, Jezouin, Sébastien, Lescanne, Raphaël, Huard, Benjamin |
| سنة النشر: | 2024 |
| المجموعة: | Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics |
| الوصف: | Dissipation engineering offers a powerful tool for quantum technologies. Recently, new superconducting devices demonstrated an engineered two-photon dissipation rate exceeding all other relevant timescales. In particular, they have proven most useful to prevent transitions between the logical states $|\pm\alpha\rangle$ of a cat qubit. Here, we present three key applications of strong two-photon dissipation for quantum measurement and control, beyond cat qubit stabilization. Firstly, we demonstrate its efficacy in overcoming limitations encountered in Wigner tomography at high photon numbers. Secondly, we showcase its potential for realizing universal gates on cat qubits, exploiting the coherent mapping between cat qubit states and superpositions of 0 and 1 photons. Finally, we harness the transient dynamics of a cat state under two-photon dissipation to prepare squeezed cat states with a squeezing factor exceeding 3.8 dB. Comment: Main text and supplementary materials. Three videos can be downloaded as ancillary files |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2403.07744 |
| رقم الأكسشن: | edsarx.2403.07744 |
| قاعدة البيانات: | arXiv |
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