360 citations · 911 across the 15 of their papers we have counts for
16 papers
A simple method to fabricate Josephson junctions
Imran Mahboob, Satoshi Sasaki, Takaaki Takenaka
A minimal method to fabricate Al/AlO/Al Josephson junctions (JJs) using photolithography and argon etching, before metallization and oxidation, is demonstrated. JJs with areas…
Three-Dimensional Niobium Coaxial Cavity with second Lifetime
Takaaki Takenaka, Takayuki Kubo, Imran Mahboob +4
We report on the internal quality factor of a three-dimensional niobium quarter-wave coaxial cavity, with mid-temperature annealing, exhibiting at…
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…