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

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

Research output: Contribution to journalArticle

90 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number033601
JournalPhysical Review Letters
Volume102
Issue number3
DOIs
Publication statusPublished - 2009 Jan 20
Externally publishedYes

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compressing
nuclear spin
atoms
ytterbium
interactions
ground state
pulses

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Spin squeezing of a cold atomic ensemble with the nuclear spin of one-half. / Takano, T.; Fuyama, Miho; Namiki, R.; Takahashi, Y.

In: Physical Review Letters, Vol. 102, No. 3, 033601, 20.01.2009.

Research output: Contribution to journalArticle

Takano, T. ; Fuyama, Miho ; Namiki, R. ; Takahashi, Y. / Spin squeezing of a cold atomic ensemble with the nuclear spin of one-half. In: Physical Review Letters. 2009 ; Vol. 102, No. 3.
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