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  1. researchgate.net

    This implies that quantum optical coherence in the driving field is not necessary for generating high harmonic radiation, with the consequence that the emitted harmonic radiation in those cases do ...
  2. In this work we analyze the role of the optical phase and coherence of the driving field in the process of high harmonic generation. We consider driving the process of high harmonic generation with incoherent classical and non-classical intense light fields, and show that harmonic radiation can be generated even in cases where the phase of the driving field is completely undetermined leading ...
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  4. On theroleof theoptical phase and coherence in high harmonic generation Philipp Stammer1,∗ 1ICFO - Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain (Dated: September 22, 2023) In this work we analyze the role of the optical phase and coherence of the driving field in ...
  5. link.aps.org

    The optical phase of the driving field in the process of high harmonic generation and the coherence properties of the harmonics are fundamental concepts in attosecond physics. Here, we consider driving the process by incoherent classical and nonclassical light fields exhibiting an undetermined optical phase.
  6. journals.aps.org

    introduce the notion of quantum optical coherence into high harmonic generation and show that high harmonics can be generated from incoherent radiation despite having a vanishing electric field. We explicitly derive the quantum state of the harmonics when driven by carrier-envelope phase unstable fields and show that the
  7. pmc.ncbi.nlm.nih.gov

    (A) Classical wave dynamics. A point particle with velocity v passes through an optical medium and emits waves that may interfere coherently. The classical emitter current density J(r, t) = evδ(r − vt) emits a temporally coherent shock wave.(B) Quantum description.A quantum particle is described by a delocalized wave function ψ(r, t).A current operator J ^ (r, t) is then associated with ...
  8. link.aps.org

    High-harmonic generation (HHG) involves the up-conversion of a high-intensity driving field into its harmonic orders. This process is intrinsically nonclassical, requiring from quantum mechanics for a complete explanation as, under suitable conditions, involves phenomena such as particle tunneling through a potential barrier. When exposed to a high-intensity, low-frequency laser field, bound ...
  9. journals.aps.org

    We present a comprehensive theoretical investigation of high-order harmonic generation in ${\\mathrm{H}}_{2}{}^{+}$ molecules within a quantum-optical framework. Our study focuses on characterizing various quantum-optical and quantum-information measures stemming from the correlations established between light and matter. We demonstrate the emergence of entanglement between electron and light ...
  10. Following a two-stage approach, PASQuanS2 is now kicking off its first project phase: the so-called PASQuanS2.1. Running for the next 3.5 years, one of the major objectives of this initial phase is the development of quantum simulators with at least 2,000 atoms and a path towards 10,000 while improving control, stability, and scalability.

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