Quantum phenomena in attosecond science

L Cruz-Rodriguez, D Dey, A Freibert… - Nature Reviews …, 2024 - nature.com
The ability to manipulate and observe phenomena on attosecond timescales has yielded
groundbreaking insights into electron dynamics and the behaviour of matter exposed to …

Generation of massively entangled bright states of light during harmonic generation in resonant media

S Yi, ND Klimkin, GG Brown, O Smirnova… - Physical Review X, 2025 - APS
At the fundamental level, full description of light-matter interaction requires quantum
treatment of both matter and light. However, for standard light sources generating intense …

Generation of squeezed high-order harmonics

ME Tzur, M Birk, A Gorlach, I Kaminer, M Krüger… - Physical Review …, 2024 - APS
For decades, most research of high harmonic generation (HHG) considered matter as
quantum but light as classical. Recently, HHG driven by quantum states of light such as …

Squeezed states of light after high-order harmonic generation in excited atomic systems

J Rivera-Dean, HB Crispin, P Stammer, T Lamprou… - Physical Review A, 2024 - APS
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 the …

Quantum Electrodynamics in High-Harmonic Generation: Multitrajectory Ehrenfest and Exact Quantum Analysis

S de-la-Pena, O Neufeld, M Even Tzur… - Journal of Chemical …, 2024 - ACS Publications
High-harmonic generation (HHG) is a nonlinear process in which a material sample is
irradiated by intense laser pulses, causing the emission of high harmonics of incident light …

Energy conservation in quantum optical high harmonic generation

P Stammer - arxiv preprint arxiv:2410.15503, 2024 - arxiv.org
The use of energy conservation arguments is ubiquitous in understanding the process of
high harmonic generation, yet a complete quantum optical description of photon exchange …

Hierarchy of approximations for describing quantum light from high-harmonic generation: A Fermi-Hubbard-model study

CS Lange, LB Madsen - Physical Review A, 2025 - APS
The quantum optical description of high-order harmonic generation where both the electrons
of the generating medium and the driving and generated light fields are described quantum …

High harmonic generation from an atom in a squeezed-vacuum environment

SJ Wang, SG Yu, XY Lai, XJ Liu - Physical Review Research, 2024 - APS
We investigate high harmonic generation (HHG) of an atom in the presence of squeezed
vacuum of a single harmonic mode. Based on a fully quantum time-dependent Schrödinger …

Observation of a Multimode Displaced Squeezed State in High-Harmonic Generation

D Theidel, P Heinzel, V Cotte, H Griguer… - arxiv preprint arxiv …, 2024 - arxiv.org
High harmonic generation is a resource of extremely broad frequency combs of ultrashort
light pulses. The non-classical nature of this new quantum source has been recently …

Quantum Nanophotonics with Energetic Particles: X-rays and Free Electrons

X Shi, WW Lee, A Karnieli, LM Lohse, A Gorlach… - arxiv preprint arxiv …, 2024 - arxiv.org
Rapid progress in precision nanofabrication and atomic design over the past 50 years has
ushered in a succession of transformative eras for molding the generation and flow of light …