RESUMO
Compared to light interferometers, the flux in cold-atom interferometers is low and the associated shot noise is large. Sensitivities beyond these limitations require the preparation of entangled atoms in different momentum modes. Here, we demonstrate a source of entangled atoms that is compatible with state-of-the-art interferometers. Entanglement is transferred from the spin degree of freedom of a Bose-Einstein condensate to well-separated momentum modes, witnessed by a squeezing parameter of -3.1(8) dB. Entanglement-enhanced atom interferometers promise unprecedented sensitivities for quantum gradiometers or gravitational wave detectors.
RESUMO
It's difficult to value the effects on animals caused by genetic engineering. Nowadays an enormous increase on animal tests is taken place. The detrimental alterations of small number of living born gene altered animals are in literature explained by deficiencies in method and the increased growth is described with deficient mechanisms on regulation. Not only the intention to increase productivity by genetic engineering but also the method to improve by fragments (genes) not facing the animals totality is against prevention of cruelty to animals.
