657 citations · 3.4k across the 57 of their papers we have counts for
57 papers
Extremely large Lamb shift in a deep-strongly coupled circuit QED system with a multimode resonator
Ziqiao Ao, Sahel Ashhab, Fumiki Yoshihara +5
We report experimental and theoretical results on the extremely large Lamb shift in a multimode circuit quantum electrodynamics (QED) system in the deep-strong coupling (DSC) regim…
Effect of Decoherence for Gate Operations on a Superconducting Bosonic Qubit
Kosuke Mizuno, Takaaki Takenaka, Imran Mahboob +1
High-quality-factor 3D cavities in superconducting circuits are ideal candidates for bosonic logical qubits as their fidelity is limited only by the low photon loss rate. However,…
Magnetometry of neurons using a superconducting qubit
Hiraku Toida, Koji Sakai, Tetsuhiko F. Teshima +5
We demonstrate magnetometry of cultured neurons on a polymeric film using a superconducting flux qubit that works as a sensitive magnetometer in a microscale area. The neurons are…
A three-dimensional Josephson parametric amplifier
I. Mahboob, H. Toida, K. Kakuyanagi +2
A Josephson parametric amplifier (JPA) is executed in a three-dimensional (3D) microwave cavity by coupling it to a superconducting quantum interference device (SQUID) that is embe…
Identification of different types of high-frequency defects in superconducting qubits
Leonid V. Abdurakhimov, Imran Mahboob, Hiraku Toida +3
Parasitic two-level-system (TLS) defects are one of the major factors limiting the coherence times of superconducting qubits. Although there has been significant progress in charac…
Driven-state relaxation of a coupled qubit-defect system in spin-locking measurements
Leonid V. Abdurakhimov, Imran Mahboob, Hiraku Toida +3
It is widely known that spin-locking noise-spectroscopy is a powerful technique for the characterization of low-frequency noise mechanisms in superconducting qubits. Here we show t…