Role of short and long trajectories on the quantum-optical state after high-order harmonic generation DOI
Javier Rivera-Dean

Physical review. A/Physical review, A, Journal Year: 2024, Volume and Issue: 110(6)

Published: Dec. 9, 2024

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 complete explanation as, under suitable conditions, phenomena such as particle tunneling through potential barrier. When exposed to high-intensity, low-frequency laser field, bound electrons ionize via tunneling, accelerate and recombine with parent ion, emitting high-harmonic radiation. However, can follow two distinct pathways, short long trajectories, during these steps. In this work, we evaluate signatures left by trajectories on quantum-optical state after HHG, observe that they lead entanglement between generated harmonics. By leveraging correlations, use herald creation optical Schr\"odinger-cat-like states in field. Additionally, using an ab initio approach, examine how propagation effects, which spatially separate contributions influence nonclassical characteristics emitted light.

Language: Английский

Generation of Massively Entangled Bright States of Light during Harmonic Generation in Resonant Media DOI Creative Commons
Sili Yi, Nikolai D. Klimkin, Graham G. Brown

et al.

Physical Review X, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 5, 2025

At the fundamental level, full description of light-matter interaction requires quantum treatment both matter and light. However, for standard light sources generating intense laser pulses carrying quadrillions photons in a coherent state, classical during laser-matter has been expected to be adequate. Here, we show how nonlinear optical response can controlled generate dramatic deviations from this picture, including generation several squeezed entangled harmonics incident In particular, such nontrivial states are generated as soon one induces transition between different laser-dressed material system. Such transitions an wave function, which even absence driving field or correlations. turn, entanglement system with single harmonic generates controls harmonics. Hence, media that near resonant at least appear quite attractive massively Our analysis opens remarkable opportunities interface attosecond physics optics, implications information science. Published by American Physical Society 2025

Language: Английский

Citations

1
Hierarchy of approximations for describing quantum light from high-harmonic generation: A Fermi-Hubbard-model study DOI
Christian Saugbjerg Lange, Lars Bojer Madsen

Physical review. A/Physical review, A, Journal Year: 2025, Volume and Issue: 111(1)

Published: Jan. 22, 2025

Language: Английский

Citations

0
High-order harmonic generation in quantum light by a generalized von Neumann lattice method DOI

Yi-Ben Wang,

Xue-Bin Bian

Physical review. A/Physical review, A, Journal Year: 2025, Volume and Issue: 111(4)

Published: April 11, 2025

Language: Английский

Citations

0
Photon bunching in high-harmonic emission controlled by quantum light DOI
Samuel Lemieux, Sohail A. Jalil, David N. Purschke

et al.

Nature Photonics, Journal Year: 2025, Volume and Issue: unknown

Published: May 13, 2025

Language: Английский

Citations

0
Squeezed states of light after high-order harmonic generation in excited atomic systems DOI
Javier Rivera-Dean, H. B. Crispin, Philipp Stammer

et al.

Physical review. A/Physical review, A, Journal Year: 2024, Volume and Issue: 110(6)

Published: Dec. 23, 2024

High-harmonic generation (HHG) has recently emerged as a promising method for generating nonclassical states of light with frequencies spanning from the infrared up to extreme ultraviolet regime. In this work, we theoretically investigate squeezed through HHG processes in atomic systems that were initially driven their first excited state. Our study reveals significant single-mode squeezing both driving field and low-order harmonic modes. Additionally, characterize two-mode features generated states, between fundamental modes, among modes themselves. Using these correlations, demonstrate optical Schrödinger kitten heralding measurements, specifically via photon subtraction one influenced by squeezing. locked icon Physics Subject Headings (PhySH)High-order generationLight-matter interactionQuantum optics

Language: Английский

Citations

2
Role of short and long trajectories on the quantum-optical state after high-order harmonic generation DOI
Javier Rivera-Dean

Physical review. A/Physical review, A, Journal Year: 2024, Volume and Issue: 110(6)

Published: Dec. 9, 2024

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 complete explanation as, under suitable conditions, phenomena such as particle tunneling through potential barrier. When exposed to high-intensity, low-frequency laser field, bound electrons ionize via tunneling, accelerate and recombine with parent ion, emitting high-harmonic radiation. However, can follow two distinct pathways, short long trajectories, during these steps. In this work, we evaluate signatures left by trajectories on quantum-optical state after HHG, observe that they lead entanglement between generated harmonics. By leveraging correlations, use herald creation optical Schr\"odinger-cat-like states in field. Additionally, using an ab initio approach, examine how propagation effects, which spatially separate contributions influence nonclassical characteristics emitted light.

Language: Английский

Citations

1