Efficient Modeling of Laser-Plasma Accelerators with INF&RNO.

The numerical modeling code INF&RNO (INtegrated Fluid & paRticle simulatioN cOde, pronounced 'inferno') is presented. INF&RNO is an efficient 2D cylindrical code to model the interaction of a short laser pulse with an underdense plasma. The code is based on an envelope model for the laser while either a PIC or a fluid description can be used for the plasma. The effect of the laser pulse on the plasma is modeled with the time-averaged poderomotive force. These and other features allow for a speedup of 2-4 orders of magnitude compared to standard full PIC simulations while still retaining physical fidelity. The code has been benchmarked against analytical solutions and 3D PIC simulations and here a set of validation tests together with a discussion of the performances are presented. [ABSTRACT FROM AUTHOR]

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