695 citations · 2.6k across the 29 of their papers we have counts for
29 papers
Revisiting Thermal Scalability for Large-Scale Superconducting Quantum Systems
Shaswot Shresthamali, Ilkwon Byun, Teruo Tanimoto +4
The readout amplification chain imposes a critical thermal scalability bottleneck in large-scale superconducting quantum systems. This happens through three mechanisms: amplifier d…
Microwave spectroscopy of Schmid transition
Manuel Houzet, Tsuyoshi Yamamoto, Leonid I. Glazman
Schmid transition was introduced first as a superconductor-insulator transition in the zero-frequency response of a shunted Josephson junction in equilibrium at zero temperature. A…
Noise properties of a Josephson parametric oscillator
Gopika Lakshmi Bhai, Hiroto Mukai, Tsuyoshi Yamamoto +1
We perform the noise spectroscopy of a Josephson parametric oscillator (JPO) by implementing a microwave homodyne interferometric measurement scheme. We observe the fluctuations in…
Spectroscopic estimation of the photon number for superconducting Kerr parametric oscillators
Keisuke Matsumoto, Aiko Yamaguchi, Tsuyoshi Yamamoto +2
Quantum annealing (QA) is a way to solve combinational optimization problems. Kerr nonlinear parametric oscillators (KPOs) are promising devices for implementing QA. When we solve…
Heat transport through a two-level system under continuous quantum measurement
Tsuyoshi Yamamoto, Yasuhiro Tokura, Takeo Kato
We study the backaction of quantum measurements on heat transport through a two-level system by considering the continuous quantum measurement onto an eigenstate of the two-level s…
Spin current at a magnetic junction as a probe of the Kondo state
Tsuyoshi Yamamoto, Takeo Kato, Mamoru Matsuo
We investigate the spin Seebeck effect and spin pumping in a junction between a ferromagnetic insulator and a magnetic impurity deposited on a normal metal. By the numerical renorm…