Ionizing
Radiation
Division

Search for Quantum Entanglement in H₂0-D₂0 Liquid Mixtures

• The scattering length density Nb for liquid mixtures is classically expected to be the same as the sum of the individual liquids, i.e., for two liquids, Nb = [(Nb)₁t₁ + (Nb)₂t₂]/t where Nb₁ and Nb₂ are the scattering length densities of the individual liquids and t=t₁+t₂ is the thickness of the total sample (t₁ and t₂ are the thickness’ of the individual liquid samples).
• If the nuclei are entangled Nb might then contain other terms. In fact recent predictions have suggested that Nb could deviate from the classical model by as much as 5% to 10%.
• We have measured Nb for liquid mixtures of H₂0 and D₂0 near room temperature. However, no deviations were observed greater than the experimental resolution of 0.4% were seen.

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  Online: November 1998