Experimental Creation of a Fully Inseparable Tripartite Continuous-Variable State

Takao Aoki*, Nobuyuki Takei, Hidehiro Yonezawa, Kentaro Wakui, Takuji Hiraoka, Akira Furusawa, Peter van Loock

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

250 Citations (Scopus)


A continuous-variable tripartite entangled state is experimentally generated by combining three independent squeezed vacuum states, and the variances of its relative positions and total momentum are measured. We show that the measured values violate the separability criteria based on the sum of these quantities and prove the full inseparability of the generated state.

Original languageEnglish
JournalPhysical Review Letters
Issue number8
Publication statusPublished - 2003 Aug 21
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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