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Direct Imaging of Laser-driven Ultrafast Molecular Rotation
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Young's Double-Slit Interference in a Hydrogen Atom.

Pei-Lun He1, Zhao-Han Zhang1, Feng He1,2

  • 1Key Laboratory for Laser Plasmas (Ministry of Education) and School of Physics and Astronomy, Collaborative Innovation Center for IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China.

Physical Review Letters
|May 9, 2020
PubMed
Summary
This summary is machine-generated.

Young's double-slit interference was achieved in a hydrogen atom using ab initio simulations. This demonstrates the existence of Kramers-Henneberger states and adiabatic stabilization in intense laser fields.

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Area of Science:

  • Quantum mechanics
  • Atomic physics
  • Laser physics

Background:

  • The Kramers-Henneberger (KH) state is a theoretical concept describing an atom's behavior under intense laser fields.
  • Adiabatic stabilization is a phenomenon where atoms become resistant to ionization in such fields.

Purpose of the Study:

  • To demonstrate Young's double-slit interference in a hydrogen atom using ab initio simulations.
  • To provide experimental evidence for the existence of KH states and adiabatic stabilization.

Main Methods:

  • Ab initio simulations of a hydrogen atom exposed to high-frequency intensive laser pulses.
  • Analysis of the photoelectron momentum distribution to identify interference patterns.

Main Results:

  • The hydrogen atom's bound state distorted into a dichotomic KH state.
  • The photoelectron momentum distribution exhibited a double-slit interference structure.
  • Observed molecular-like phenomena including charge-resonance enhanced ionization and electron spin flipping.

Conclusions:

  • The observed double-slit interference pattern in photoelectron momentum distribution is unambiguous evidence for KH states.
  • Confirms the phenomenon of adiabatic stabilization in intense laser fields.
  • Highlights the potential for observing quantum phenomena in atomic systems under extreme conditions.