Quantum Annealer based on Kerr Parametric Oscillators

by Tsuyoshi Yamamoto (NEC)

Monday 24 Apr 2023, 11:30 → 12:30 Europe/Madrid

IFAE Seminar Room + Zoom (Hybrid Seminar)

Josephson parametric oscillator is a superconducting driven oscillator, in which the resonance frequency is modulated at twice of it with a modulation amplitude larger than a threshold. The oscillation states of a JPO composed of two different states with the same amplitude, but opposite phase (0pi or 1pi) can be used as two basis states of a qubit [1, 2]. In this talk, I will show our study on the basic physical properties of a JPO toward the realization of a quantum annealing machine [3, 4].

References:

[1] H. Goto, Sci. Rep. 6, 21686 (2016).

[2] S. Puri et al., Nature Commun. 8, 15785 (2017).

[3] T. Yamaji et al., Phys. Rev. A 105, 023519 (2022).

[4] T. Yamaji et al., arXiv:2212.13682.