【直播】【量子物理与量子信息科学·百望讲坛】Ramón Aguado：Microwave spectroscopy of...
本系列报告由北京量子信息科学研究院主办，于2021年6月18日16:00开始，授权蔻享学术进行网络直播。
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Microwave spectroscopy of hybrid superconductor-semiconductor qubits: Majorana Zero modes and Quantum Dot Transmons
报告人
Ramón Aguado
时间
2021年6月18日 16:00-17:00
Recent efforts have focused on replacing the weak link in the Josephson Junction (JJ) of a superconducting qubit by electrostatically-gateable technologies compatible with high magnetic fields. Such alternatives are crucial in order to reach a regime relevant for readout of topological qubits based on Majorana zero modes (MZMs). In my talk, I will focus on JJs based on semiconducting nanowires that can be driven to a topological superconductor phase with MZMs. A fully microscopic theoretical description of such hybrid semiconductor-superconducting qubit allows to unveil new physics originated from the coherent interaction between the MZMs and the superconducting qubit degrees of freedom. The corresponding microwave spectroscopy presents nontrivial features, including a full mapping of zero energy crossings and fermionic parity switches in the nanowire owing to Majorana oscillations. Other effects, originated from quantum dots in the junction of a gate-tunable superconducting qubit will also be discussed.
报告人简介
Ramón Aguado is a senior scientist of the Spanish National Research Council (CSIC), Spain and works at the Institute of Materials Science Institute Madrid (ICMM). He is a theoretical condensed matter physicist with more than 20 years of research experience, aiming at understanding experiments and making experimental predictions, in various areas revolving around new properties of quantum materials, mesoscopics physics, strongly correlated electrons and nanoelectronics. During the last few years, this activity has strongly focused on studying topological materials with applications in quantum technologies and Majorana physics. He is also the Vice President of the Condensed Matter Physics Division of the Spanish Physics Society.
编辑：黄琦
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