- Understand the limitations of our probabilistic MC (cross-section-based) approach, implemented in the GF-CAIN (Wieslaw Placzek), GF-CMCC (Camilla Curatolo), Python-based MC simulation toolkit (Alexey Petrenko), with respect to the full Quantum Mechanical (QM) description of collisions of the PSI beams with photon pulses. The QM framework include quantum interference effects, Rabi oscillations, etc… At present, we observe a factor of 2-5 discrepancies in the number of excited ions, for the photon pulse length and pulse power which maximizes the pumping efficiency (pi/2 Rabi phase).
- Implementation of the initial and final photon polarization degrees of freedom into the GF-Cain code (recent theoretical work by Andrey Surzhykov, and Andrey Volodka).
- Extension of the GF-CAIN code to the case of an arbitrary polarisation of the PSIs (unequal population of ionic m-levels). The PSI and photon polarization should be defined in terms of the orientation/alignment parameters and Stokes parameters, respectively. The information about the polarization states of ions and light should be provided with the help of user-friendly interface.
- Implementation -- in the Python-based MC simulation toolkit – the processes of intra-beam scattering and intra-beam stripping. This implementation is necessary to tune the degree of the laser longitudinal and transverse cooling of the beam bunches (the IBS limit).
- Discuss and fix the strategy of the further GF software development. Two alternatives: (1) beam dynamics software implemented into the existing GF software; (2) The exiting PSI-photon collision software implemented to the state-of-art beam bunches evolution software (which include IBS and collective effects).
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