Josephson cascade micromaser

Noriyuki Hatakenaka*, Susumu Kurihara

*この研究の対応する著者

研究成果: Article査読

12 被引用数 (Scopus)

抄録

The possibility of maser action using a current-biased mesoscopic Josephson junction in a high-Q microcavity is discussed. A mesoscopic Josephson junction behaves like an artificial atom as far as the interaction with the photon field is concerned. Under a certain bias current, the Josephson "atom" is resonantly excited or pumped by quantum-mechanical fluctuations of the Josephson phase, i.e., macroscopic resonant tunneling. When the pumping overcomes the loss of photons from the cavity, maser action is possible. Quantum statistical properties of photons are also investigated numerically, taking into acount the microcavity effect on the basis of a Jaynes-Cummings model with pumping and cavity damping. We found that a mesoscopic Josephson junction within the high-Q microcavity acts as a thresholdless maser with sub-Poissonian photon statstics.

本文言語English
ページ(範囲)1729-1732
ページ数4
ジャーナルPhysical Review A - Atomic, Molecular, and Optical Physics
54
2
出版ステータスPublished - 1996
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 原子分子物理学および光学

フィンガープリント

「Josephson cascade micromaser」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル