Microscopic relaxation channels in materials for superconducting qubits

oleh: Anjali Premkumar, Conan Weiland, Sooyeon Hwang, Berthold Jäck, Alexander P. M. Place, Iradwikanari Waluyo, Adrian Hunt, Valentina Bisogni, Jonathan Pelliciari, Andi Barbour, Mike S. Miller, Paola Russo, Fernando Camino, Kim Kisslinger, Xiao Tong, Mark S. Hybertsen, Andrew A. Houck, Ignace Jarrige

Format: Article
Diterbitkan: Nature Portfolio 2021-07-01

Deskripsi

Understanding the connection between qubit coherence and microscopic materials properties is vital for improving device performance. Here, the relaxation times of superconducting transmon qubits are found to be directly correlated with Nb film properties such as grain size and surface oxide composition.