We show that a laser beam can be diffracted by more concentrated light pulse due to quantum vacuum effects. compute analytically the intensity pattern in realistic experimental configuration, and discuss how it used measure for first time parameters describing photon-photon scattering vacuum. In particular, we Quantum Electrodynamics prediction detected single-shot experiment at future 100 petawatt lasers such as ELI or HIPER. On other hand, if carried out one of present high power...

In a recent paper, we have shown that the QED nonlinear corrections imply phase correction to linear evolution of crossing electromagnetic waves in vacuum. Here, provide more complete analysis, including full numerical solution wave equations for short-distance propagation symmetric configuration. The excellent agreement such with result obtain using our perturbatively motivated variational approach is then used justify an analytical approximation can be applied general case. This allows us...

We show that QED nonlinear effects imply a phase correction to the linear evolution of electromagnetic waves in vacuum. provide explicit solutions modified Maxwell's equations for propagation superposition two plane waves, and calculate analytically numerically corresponding shift. This provides new framework search all-optical signatures photon-photon scattering In particular, we propose an experiment measuring shift projected high-power laser facilities.

In grand unified theories based on extended (rank >4) gauge groups, the new interactions require fermions to ensure anomaly cancellation. We analyze two kinds of physics effects that are naturally present in these models: (i) neutral bosons; (ii) a mixing known with ones. Concentrating particular ${\mathrm{E}}_{6}$ and SO(10) models, we perform global analysis electroweak data constrain simultaneously effects, pay attention their reciprocal interplay. Our set experimental results includes...

Recent experiments have proved that the response to short laser pulses of common optical media, such as air or oxygen, can be described by focusing Kerr and higher order nonlinearities alternating signs. Such media support propagation steady solitary waves. We argue both numerical analytical computations low-power fundamental bright solitons satisfy an equation state which is similar a degenerate gas fermions at zero temperature. Considering, in particular, ${\mathrm{O}}_{2}$ air, we also...

We study the effects of quantum vacuum on propagation a Gaussian laser beam in vacuum. By means double perturbative expansion paraxiality and terms, we provide analytical expressions for self-induced transverse mode mixing, rotation polarization, third harmonic generarion. discuss possibility searching self-induced, spatially dependent phase shift multipetawatt pulse, which may allow testing electrodynamics new physics models, such as Born-Infeld theory models involving minicharged or...

We show that a laser beam which propagates through an optical medium with Kerr (focusing) and higher order (defocusing) nonlinearities displays pressure surface-tension properties yielding capillarity dripping effects totally analogous to usual liquid droplets. The system is reinterpreted in terms of thermodynamic grand potential, allowing for the computation surface tension beyond hydrodynamical approach based on Madelung transformation analogy Euler equation. then both analytically...

We analyze both theoretically and by means of numerical simulations the phenomena filamentation dynamical formation self-guided nonlinear waves in media featuring competing cubic quintic nonlinearities. provide a theoretical description recent experiments terms linear stability analysis supported with simulations, showing possibility experimental observation modulational instability suppression intense light pulses travelling across such media. also show novel mechanism indirect excitation...