Making high-quality quantum microwave devices with van der Waals superconductors
| Autor: | Thomas A. Ohki, Martin V. Gustafsson, Kin Chung Fong, Avishai Benyamini, Abhinandan Antony, Anjaly Rajendran, James Hone, Guilhem Ribeill |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
FOS: Physical sciences 02 engineering and technology 01 natural sciences Superconductivity (cond-mat.supr-con) symbols.namesake 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) General Materials Science 010306 general physics Quantum Superconductivity Condensed Matter - Materials Science Condensed Matter - Mesoscale and Nanoscale Physics business.industry Condensed Matter - Superconductivity Materials Science (cond-mat.mtrl-sci) Heterojunction Transmon 021001 nanoscience & nanotechnology Condensed Matter Physics 3. Good health Characterization (materials science) Qubit symbols Optoelectronics van der Waals force 0210 nano-technology business Microwave |
| DOI: | 10.48550/arxiv.2107.09147 |
| Popis: | Ultra low-loss microwave materials are crucial for enhancing quantum coherence and scalability of superconducting qubits. Van der Waals (vdW) heterostructure is an attractive platform for quantum devices due to the single-crystal structure of the constituent two-dimensional (2D) layered materials and the lack of dangling bonds at their atomically sharp interfaces. However, new fabrication and characterization techniques are required to determine whether these structures can achieve low loss in the microwave regime. Here we report the fabrication of superconducting microwave resonators using NbSe$_2$ that achieve a quality factor $Q > 10^5$. This value sets an upper bound that corresponds to a resistance of $\leq 192 \mu\Omega$ when considering the additional loss introduced by integrating NbSe$_2$ into a standard transmon circuit. This work demonstrates the compatibility of 2D layered materials with high-quality microwave quantum devices. Comment: 5 pages, 6 figures, 1 table |
| Databáze: | OpenAIRE |
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