Stefano Finazzi, Iacopo Carusotto
We compute the spectrum of quantum vacuum emission from analog white holes in nonlinear optical media using a microscopic model fully including the effect of material dispersion. Analogies and differences with respect to the prediction from the analogy with quantum field theory in curved spacetime are discussed. Critical comparison with available experimental data is made: Even if a qualitatively good agreement appears to be found, further experimental investigations are required to rule out relevant competing effects.
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http://arxiv.org/abs/1303.4990
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