On reconstructing photon statistics by on/off detectors: Toward the multi-partite case |
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| Authors: | G Brida M Genovese M G A Paris F Piacentini E Predazzi E Vallauri |
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| Institution: | (1) Moscow State Engineering Physics Institute, Moscow, 115409, Russia;(2) Landau Institute for Theoretical Physics, Moscow, 119334, Russia;(3) Department of Mathematics, Arizona State University, 617 N. Santa Rita, Tucson, AZ 85721, USA;(4) Laboratoire de Physique de l’Université de Bourgogne (L.P.U.B) Unité Mixte de Recherche du CNRS 5027, Faculté des Sciences Mirande, BP 47 870, 21 078 Dijon Cedex, France |
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| Abstract: | The propagation of pulses of the pump and its second harmonic in a quadratically nonlinear medium whose linear properties are characterized by a negative refractive index at the pump frequency and by a positive refractive index at the harmonic frequency is considered theoretically. In the case of a low intensity of the interacting waves, the pump and second-harmonic pulses propagate in the opposite directions, but sufficiently powerful pulses can form a simulton—a solitary two-frequency wave propagating in a certain direction as a single whole. Solutions to a set of equations are found which describe the steady-state propagation of a solitary wave and of a nonlinear periodic (cnoidal) wave. |
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