Entanglement of spin waves among four quantum memories
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Entanglement of spin waves among four quantum memories SUPPLEMENTARY INFORMATION
2 ( Ec + e (w) 3 Ed). We control their relative intensities using the two waveplates (λ/2) near {BD1,BD2}, with writing phases φ i ∈ {φ 1 , φ (w) 2 , φ (w) 3 } set by the tilting angles of {BD1,BD2}. In turn, the heralding fields γ1 = {a1, b1, c1, d1} emitted from the writing process are combined into two spatial modes at BD3, with each mode carrying polarizations {|H, |V } to accommodate...
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ژورنال
عنوان ژورنال: Nature
سال: 2010
ISSN: 0028-0836,1476-4687
DOI: 10.1038/nature09568