activity
20122026
most citedGeneration of optical Schrödinger cat states in intense laser-matter interactions

166 citations · 229 across the 8 of their papers we have counts for

collaborators

8 papers

physics.optics2026

Geometric Control of Cat States in High Harmonic Generation

Arti Gaharwar, Rocío Borrego-Varillas, Marcelo F. Ciappina +6

High-harmonic generation (HHG) provides a powerful platform for exploring the interaction between intense laser fields and matter on ultrafast timescales. Beyond its conventional d…

physics.atom-ph2026

Electron Correlation Enables Phase-Coherent One-Attosecond Pulse Trains

Andrés Marchisio, Isobel McSweeney, Paraskevas Tzallas +2

Attosecond synthesis is ultimately a phase problem: a broad spectrum produces an ultrashort waveform only if its harmonics remain phase-locked. We show theoretically that correlate…

physics.atom-ph2026

Two-Electron Effects Extend High-Harmonic Generation into the keV Regime

Isobel McSweeney, Andres Marchisio, Javier Rivera-Dean +4

Two-electron processes can generate high harmonics beyond the conventional single-active-electron cutoff. Motivated by recent experimental evidence of an extended secondary plateau…

quant-ph2026

Emergence of Gaussian entanglement and non-Gaussianity in high-harmonic generation driven by bright squeezed light

J. Rivera-Dean, M. Even-Tzur, M. F. Ciappina +3

High harmonic generation (HHG) is a highly nonlinear optical process in which radiation from a strong driving field is up-converted into its high-order harmonics. In atomic systems…

physics.optics2020★ 166 cited

Generation of optical Schrödinger cat states in intense laser-matter interactions

Maciej Lewenstein, Marcelo F. Ciappina, Emilio Pisanty +4

The physics of intense laser-matter interactions is described by treating the light pulses classically, anticipating no need to access optical measurements beyond the classical lim…

physics.atom-ph2013★ 42 cited

Quantum-orbit analysis of above threshold ionization by intense spatially inhomogeneous field

T. Shaaran, M. F. Ciappina, M. Lewenstein

We perform a detailed analysis of above threshold ionization (ATI) in atoms within the strong field approximation (SFA) by considering spatially inhomogeneous monochromatic laser f…

physics.atom-ph2012★ 21 cited

Estimating the plasmonic field enhancement using high-order harmonic generation: The role of inhomogeneity of the fields

T. Shaaran, M. F. Ciappina, M. Lewenstein

In strong field laser physics it is a common practice to use the high-order harmonic cutoff to estimate the laser intensity of the pulse that generates the harmonic radiation. Base…

physics.atom-ph2012

Tailoring high-order harmonic generation with nonhomogeneous fields and electron confinement

M. F. Ciappina, Srdjan S. Acimovic, T. Shaaran +3

We study high-order harmonic generation (HHG) resulting from the illumination of plasmonic nanostructures with a short laser pulse. We show that both the inhomogeneities of the loc…