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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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Manipulating polarization effect in nonsequential double ionization.

MingZheng Wei, HuiPeng Kang, HuiPeng XiaoJun Liu

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    Summary
    This summary is machine-generated.

    We theoretically studied nonsequential double ionization (NSDI) of magnesium atoms using combined laser fields. Our findings show polarization effects can be controlled by tuning the two-color pulse waveform.

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    Area of Science:

    • Atomic Physics
    • Quantum Mechanics
    • Laser-Matter Interactions

    Background:

    • Nonsequential double ionization (NSDI) is a complex atomic process.
    • Understanding NSDI dynamics is crucial for controlling electron emission.
    • Previous studies often simplified the interaction potentials.

    Purpose of the Study:

    • To theoretically investigate nonsequential double ionization (NSDI) of magnesium atoms.
    • To explore the control of polarization effects in NSDI using combined laser fields.
    • To analyze the influence of the dynamic ionic dipole potential on NSDI.

    Main Methods:

    • Utilizing a theoretical model incorporating the dynamic ionic dipole potential.
    • Employing combined linearly and circularly polarized fields.
    • Analyzing electron trajectories to understand ionization dynamics.

    Main Results:

    • Demonstrated control over polarization effects by tuning the subcycle waveform of two-color laser pulses.
    • Showed that the dipole potential's influence on NSDI is dependent on the symmetry of the two-color fields.
    • Identified a method to manipulate returning electron trajectories with minimal change to the initial tunneling direction.

    Conclusions:

    • The dynamic ionic dipole potential plays a significant role in NSDI.
    • Laser field waveform engineering offers a pathway to control electron emission in NSDI.
    • This work provides insights into manipulating electron trajectories for advanced applications.