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초강력 레이저과학 연구단
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Time correlation inside a laser pulse

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Title
Time correlation inside a laser pulse
Author(s)
I. A. Ivanov; A. S. Kheifets; Kyung Taec Kim
Subject
QUANTUM-MECHANICAL DESCRIPTION, ; PHYSICAL REALITY, ; TUNNELING TIME, ; IONIZATION, ; LIGHT
Publication Date
2020-04
Journal
PHYSICAL REVIEW A, v.101, no.4, pp.043407
Publisher
AMER PHYSICAL SOC
Abstract
© 2020 American Physical Society.Looking inside a laser pulse by detecting an instantaneous ionization rate (IIR) has been a useful instrument for characterizing subcycle ionization dynamics [Phys. Rev. A 64, 013409 (2001)PLRAAN1050-294710.1103/PhysRevA.64.013409]. However, this instrument relies entirely on IIR being a deterministic function of time. By introducing an IIR operator and studying its autocorrelation function, we show that electron ionization dynamics is more complex and the ionization rate depends on the "prehistory," i.e., the IIRs at the two instants of time are, in fact, correlated. The pattern of this correlation changes dramatically between the multiphoton and tunneling ionization regimes. These findings have wide implications for strong-field atomic physics and providing new possibilities for quantum local realism tests
URI
https://pr.ibs.re.kr/handle/8788114/8644
DOI
10.1103/PhysRevA.101.043407
ISSN
2469-9926
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > 1. Journal Papers (저널논문)
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