4 papers
Change in bit-flip times of Kerr parametric oscillators caused by their interactions
Yuya Kano, Yohei Kawakami, Shumpei Masuda +8
We experimentally investigate how interactions between Kerr parametric oscillators (KPOs) degrade their bit-flip times, where a bit flip is defined as a transition between the two…
Inter-transition interference in spectrum of Kerr parametric oscillators
Shumpei Masuda
We theoretically investigate reflection and transmission measurements of two-photon and four-photon Kerr parametric oscillators (KPOs), introducing interference effects between int…
Fast-forward scaling theory for quantum dynamics on curved space-time
Yuji Ando, Shumpei Masuda
Scaling properties inherent in quantum dynamics have been studied for various systems in terms of acceleration, deceleration and time reversing. We show a scaling property of quant…
Residual--coupling suppression and fast two-qubit gate for Kerr-cat qubits based on level-degeneracy engineering
Takaaki Aoki, Akiyoshi Tomonaga, Kosuke Mizuno +1
Building large-scale quantum computers requires an interqubit-coupling scheme with a high on-off ratio to avoid unwanted crosstalk coming from residual coupling and to enable fast…