Control of tunneling ionization and subcycle interference dynamics with squeezed coherent light

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Abstract
The influence of the quantum state of light on strong-field ionization has emerged as a frontier in attosecond physics. Here, we develop a quantum-optical extension of the quantum-trajectory Monte Carlo framework to study the ionization of hydrogen atoms driven by an orthogonally polarized two-color quantum field, composed of an 800 nm coherent field and a 1600 nm squeezed coherent field. We show that the quantum properties of light significantly influence the subcycle dynamics of photoelectron wave packets. We systematically analyze how the quantum statistics of light influence the photoelectron phase, momentum, yield, and number distribution. Our results reveal a direct correspondence between the quantum fluctuations of the driving field and the electron final state, unveiling an avenue for controlling electron wave packet interference via the quantum properties of light.
Funding Information
  • National Key Research and Development Program of China (2022YFA1604301)
  • National Natural Science Foundation of China (12334013)
  • National Natural Science Foundation of China (92250306)

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