Spin squeezing of a cold atomic ensemble with the nuclear spin of one-half

T. Takano, M. Fuyama, R. Namiki, Y. Takahashi

研究成果: Article査読

103 被引用数 (Scopus)

抄録

In order to establish an applicable system for advanced quantum information processing based on the interaction between light and atoms, we have demonstrated a quantum nondemolition measurement with a collective spin of cold ytterbium atoms (Yb171), and have observed 1.8-1.5+2.4dB spin squeezing. Since Yb171 atoms have only a nuclear spin of one-half in the ground state, the system constitutes the simplest spin ensemble and is thus robust against decoherence. We used very short pulses with a width of 100 ns, and as a result the interaction time became much shorter than the decoherence time, which is important for multistep quantum information processing.

本文言語English
論文番号033601
ジャーナルPhysical Review Letters
102
3
DOI
出版ステータスPublished - 2009 1 20
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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