Rabi Oscillations in a Josephson-Junction Charge Two-Level System

Y. Nakamura; Yu. A. Pashkin; J. S. Tsai

doi:10.1103/PhysRevLett.87.246601

Rabi Oscillations in a Josephson-Junction Charge Two-Level System

Y. Nakamura, Yu. A. Pashkin, and J. S. Tsai

Phys. Rev. Lett. 87, 246601 – Published 27 November 2001

Abstract

We investigated temporal behavior of an artificial two-level system driven by a strong oscillating field; namely, quantum-state evolution between two charge states in a small Josephson-junction circuit irradiated with microwaves. Rabi oscillations corresponding to 0-, 1-, and 2-photon resonances were observed. As a function of microwave amplitude, the Rabi frequencies followed a first-kind Bessel function of the corresponding order to the number of photons.

Received 24 October 2000

DOI:https://doi.org/10.1103/PhysRevLett.87.246601

Authors & Affiliations

Y. Nakamura¹, Yu. A. Pashkin^2,*, and J. S. Tsai¹

¹NEC Fundamental Research Laboratories, Tsukuba, Ibaraki 305-8501, Japan
²CREST, Japan Science and Technology Corporation (JST), Kawaguchi, Saitama, 332-0012, Japan