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2025

A universal approach to saddle-point methods in attosecond science

Anne Weber, Job Feldbrugge, Emilio Pisanty

arXiv:2510.12545 – pdf

Quantum state engineering of light using intensity measurements and postselection

J. Rivera-Dean, Th. Lamprou, E. Pisanty, M. F. Ciappina, P. Tzallas, M. Lewenstein, P. Stammer

Physical Review A 112 013110 (2025) – arXiv:2409.02016 – pdf

Quantum tunnelling without a barrier

Anne Weber, Margarita Khokhlova, Emilio Pisanty

Physical Review A 111 043103 (2025) – arXiv:2311.14826 – pdf

2024

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

J. Rivera-Dean, H. B. Crispin, P. Stammer, Th. Lamprou, E. Pisanty, M. Krüger, P. Tzallas, M. Lewenstein, M. F. Ciappina

Physical Review A 110 063118 (2024) – arXiv:2408.07577 – pdf

Topological phase transitions via attosecond x-ray absorption spectroscopy

Juan F P Mosquera, Giovanni Cistaro, Mikhail Malakhov, Emilio Pisanty, Alexandre Dauphin, Luis Plaja, Alexis Chacón, Maciej Lewenstein, Antonio Picón

Reports on Progress in Physics 87 117901 (2024) – arXiv:2407.03737 – pdf

Chiral topological light for detection of robust enantiosensitive observables

Nicola Mayer, David Ayuso, Piero Decleva, Margarita Khokhlova, Emilio Pisanty, Misha Ivanov, Olga Smirnova

Nature Photonics 18 1155 (2024) – arXiv:2303.10932 – pdf

Quantum Optical Analysis of High-Order Harmonic Generation in Semiconductors

Javier Rivera-Dean, Philipp Stammer, Andrew S. Maxwell, Theocharis Lamprou, Andrés F. Ordóñez, Emilio Pisanty, Paraskevas Tzallas, Maciej Lewenstein, and Marcelo F. Ciappina

In High-Order Harmonic Generation in Solids (M. Ciappina and P. Tzallas, Eds.) pp. 139-183 (World Scientific, 2024) – pdf

Quantum optical analysis of high-order harmonic generation in H$^+_2$ molecules

J. Rivera-Dean, P. Stammer, A. S. Maxwell, Th. Lamprou, E Pisanty, P. Tzallas, M. Lewenstein, M. F. Ciappina

Physical Review A 109 033706 (2024) – arXiv:2307.12381 – pdf

Attosecond physics and quantum information science

M. Lewenstein, N. Baldelli, U. Bhattacharya, J. Biegert, M.F. Ciappina, U. Elu, T. Grass, P.T. Grochowski, A. Johnson, Th. Lamprou, A.S. Maxwell, A. Ordóñez, E. Pisanty, J. Rivera-Dean, P. Stammer, I. Tyulnev, P. Tzallas

Proceedings of the 8th International Conference on Attosecond Science and Technology. ATTO 2023. Springer Proceedings in Physics 300 27 (2024) – arXiv:2208.14769 – pdf

Nonclassical states of light after high-harmonic generation in semiconductors: A Bloch-based perspective

J. Rivera-Dean, P. Stammer, A. S. Maxwell, Th. Lamprou, A. F. Ordóñez, E. Pisanty, P. Tzallas, M. Lewenstein, and M. F. Ciappina

Physical Review B 109 035203 (2024) – arXiv:2309.14435 – pdf

2023

Shining the shortest flashes of light on the secret life of electrons

Margarita Khokhlova, Emilio Pisanty, Amelle Zaïr

Advanced Photonics 6 060501 (2023) – pdf

Strong–laser–field physics, non–classical light states and quantum information science

Utso Bhattacharya, Theocharis Lamprou, Andrew S. Maxwell, Andrés F. Ordóñez, Emilio Pisanty, Javier Rivera-Dean, Philipp Stammer, Marcelo F. Ciappina, Maciej Lewenstein, Paraskevas Tzallas

Reports on Progress in Physics 86 094401 (2023) – arXiv:2302.04692 – pdf

Nonlinear up-conversion of a polarization Möbius strip with half-integer optical angular momentum

Martin Luttmann, Mekha Vimal, Matthieu Guer, Jean-François Hergott, Antonio Z. Khoury, Carlos Hernández-García, Emilio Pisanty, Thierry Ruchon

Science Advances 9 adf3486 (2023) – arXiv:2209.00454 – pdf

2022

Entanglement and non-classical states of light in a strong-laser driven solid-state system

Javier Rivera-Dean, Philipp Stammer, Andrew S. Maxwell, Theocharis Lamprou, Andrés F. Ordóñez, Emilio Pisanty, Paraskevas Tzallas, Maciej Lewenstein, Marcelo F. Ciappina

arXiv:2211.00033 – pdf

Enantiosensitive steering of free-induction decay

Margarita Khokhlova, Emilio Pisanty, Serguei Patchkovskii, Olga Smirnova, Misha Ivanov

Science Advances 8 eabq1962 (2022) – arXiv:2109.15302 – pdf

High photon number entangled states and coherent state superposition from the extreme-ultraviolet to the far infrared

Philipp Stammer, Javier Rivera-Dean, Theocharis Lamprou, Emilio Pisanty, Marcelo F. Ciappina, Paraskevas Tzallas and Maciej Lewenstein

Physical Review Letters 128 123603 (2022) – arXiv:2107.12887 – pdf

Strong laser fields and their power to generate controllable high-photon-number coherent-state superpositions

Javier Rivera-Dean, Theocharis Lamprou, Emilio Pisanty, Philipp Stammer, Andrés F. Ordóñez, Andrew S. Maxwell, Marcelo F. Ciappina, Maciej Lewenstein, Paraskevas Tzallas

Physical Review A 105 033714 (2022) – arXiv:2110.01032 – pdf

2021

New schemes for creating large optical Schrodinger cat states using strong laser fields

Javier Rivera-Dean, Philipp Stammer, Emilio Pisanty, Theocharis Lamprou, Paraskevas Tzallas, Maciej Lewenstein, Marcelo F. Ciappina

Journal of Computational Electronics 20 2111 (2021) – arXiv:2107.12811 – pdf

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

M. Lewenstein, M. F. Ciappina, E. Pisanty, J. Rivera-Dean, P. Stammer, Th. Lamprou and P. Tzallas

Nature Physics 17 1104 (2021) – arXiv:2008.10221 – handle:2117/363421 – pdf

Knotted topologies in the polarization state of bichromatic light

Emilio Pisanty

Proc. SPIE 11818, Laser Beam Shaping XXI 11818809 (2021) – pdf

Dialogue on analytical and ab initio methods in attoscience

Gregory S. J. Armstrong, Margarita A. Khokhlova, Marie Labeye, Andrew S. Maxwell, Emilio Pisanty and Marco Ruberti

The European Physical Journal D 75 209 (2021) – arXiv:2101.09335 – pdf

Conservation laws for Electron Vortices in Strong-Field Ionisation

Yuxin Kang, Emilio Pisanty, Marcelo Ciappina, Maciej Lewenstein, Carla Figueira de Morisson Faria, Andrew S Maxwell

The European Physical Journal D 75 199 (2021) – arXiv:2102.07453 – pdf

Quantum-Optical Spectrometry in Relativistic Laser–Plasma Interactions Using the High-Harmonic Generation Process: A Proposal

Theocharis Lamprou, Rodrigo Lopez-Martens, Stefan Haessler, Ioannis Liontos, Subhendu Kahaly, Javier Rivera-Dean, Philipp Stammer, Emilio Pisanty, Marcelo F. Ciappina, Maciej Lewenstein and Paraskevas Tzallas

Photonics 8 192 (2021) – arXiv:2106.00372 – pdf

Principal frequency of an ultrashort laser pulse

Enrique G. Neyra, Pablo Vaveliuk, Emilio Pisanty, Andrew S. Maxwell, Maciej Lewenstein and Marcelo F. Ciappina

Physical Review A 103 053124 (2021) – arXiv:2101.10526 – pdf

Optical polarization skyrmionic fields in free space

Rodrigo Gutiérrez-Cuevas and Emilio Pisanty

Journal of Optics 23 024004 (2021) – arXiv:2101.09254 – pdf

A systematic construction of Gaussian basis sets for the description of laser field ionization and high-harmonic generation

Aleksander P. Woźniak, Michał Lesiuk, Dmitry K. Efimov, Michał Mandrysz, Jakub S. Prauzner-Bechcicki, Marcelo Ciappina, Emilio Pisanty, Jakub Zakrzewski, Maciej Lewenstein and Robert Moszyński

Journal of Chemical Physics 154 094111 (2021) – arXiv:2007.10375 – handle:2117/363424 – pdf

Manipulating twisted electrons in strong-field ionization

Andrew S. Maxwell, Gregory S. J. Armstrong, Marcelo F. Ciappina, Emilio Pisanty, Yuxin Kang, Andrew C. Brown, Maciej Lewenstein and Carla Figueira de Morisson Faria

Faraday Discussions 228 394 (2021) – arXiv:2010.08355 – pdf

2020

ComplexFocus: Non-paraxial vector beams in Mathematica

Rodrigo Gutiérrez-Cuevas and Emilio Pisanty

github.com/ComplexFocus/ComplexFocus

Observing Topological Phase Transitions with High Harmonic Generation

Alexis Chacón, Dasol Kim, Wei Zhu, Shane P. Kelly, Alexandre Dauphin, Emilio Pisanty, Andrew S. Maxwell, Antonio Picón, Marcelo F. Ciappina, Dong Eon Kim, Christopher Ticknor, Avadh Saxena and Maciej Lewenstein

Physical Review B 102 134115 (2020) – arXiv:1807.01616 – pdf

The imaginary part of the high-harmonic cutoff

Emilio Pisanty, Marcelo F. Ciappina and Maciej Lewenstein

Journal of Physics: Photonics 2 034013 (2020) – arXiv:2003.00277 – handle:2117/328219 – pdf

Suppression of individual peaks in two-colour high harmonic generation

Sambit Mitra, Shubhadeep Biswas, Johannes Schötz, Emilio Pisanty, Benjamin Förg, Gautam Aditya Kavuri, Christian Burger, William Okell, Maximilian Högner, Ioachim Pupeza, Vladimir Pervak, Maciej Lewenstein, Pawel Wnuk and Matthias F Kling

Journal of Physics B: Atomic, Molecular and Optical Physics 53 134004 (2020) – arXiv:2007.15450 – pdf

2019

Perspective on Petahertz Electronics and Attosecond Nanoscopy

J. Schoetz, Z. Wang, E. Pisanty, M. Lewenstein, M. F. Kling and M. F. Ciappina

ACS Photonics 6 3057 (2019) – arXiv:1912.08574 – pdf

Symphony on Strong Field Approximation

Kasra Amini, Jens Biegert, Francesca Calegari, Alexis Chacón, Marcelo F. Ciappina, Alexandre Dauphin, Dmitry K. Efimov, Carla Figueira de Morisson Faria, Krzysztof Giergiel, Piotr Gniewek, Alexandra S. Landsman, Michał Lesiuk, Michał Mandrysz, Andrew S. Maxwell, Robert Moszyński, Lisa Ortmann, Jose Antonio Pérez-Hernández, Antonio Picón, Emilio Pisanty, Jakub Prauzner-Bechcicki, Krzysztof Sacha, Noslen Suárez, Amelle Zaïr, Jakub Zakrzewski and Maciej Lewenstein

Reports on Progress in Physics 82 116001 (2019) – arXiv:1812.11447 – handle:2117/170999 – pdf

Generation of extreme-ultraviolet beams with time-varying orbital angular momentum

Laura Rego, Kevin M. Dorney, Nathan J. Brooks, Quynh Nguyen, Chen-Ting Liao, Julio San Román, David E. Couch, Allison Liu, Emilio Pisanty, Maciej Lewenstein, Luis Plaja, Henry C. Kapteyn, Margaret M. Murnane and Carlos Hernández-García

Science 364 eaaw9486 (2019) – arXiv:1901.10942 – pdf

Knotting fractional-order knots with the polarization state of light

Emilio Pisanty, Gerard J. Machado, Verónica Vicuña-Hernández, Antonio Picón, Alessio Celi, Juan P. Torres and Maciej Lewenstein

Nature Photonics 13 569 (2019) – arXiv:1808.05193 – handle:2117/166861 – pdf

Conservation of torus-knot angular momentum in high-order harmonic generation

Emilio Pisanty, Laura Rego, Julio San Román, Antonio Picón, Kevin M. Dorney, Henry C. Kapteyn, Margaret M. Murnane, Luis Plaja, Maciej Lewenstein and Carlos Hernández-García

Physical Review Letters 122 203201 (2019) – arXiv:1810.06503 – pdf

LISSAFIRE: Lissajous-Figure Reconstruction for nonlinear polarization tomography of bichromatic fields

Emilio Pisanty

github.com/episanty/LISSAFIRE

2018

Determination of the spectral variation origin in high-order harmonic generation in noble gases

V. E. Nefedova, M. F. Ciappina, O. Finke, M. Albrecht, J. Vábek, M. Kozlová, N. Suárez, E. Pisanty , M. Lewenstein and J. Nejdl

Physical Review A 98 033414 (2018) – arXiv:1806.03974 – pdf

High harmonic interferometry of the Lorentz force in strong mid-infrared laser fields

Emilio Pisanty, Daniel D. Hickstein, Benjamin R. Galloway, Charles G. Durfee, Henry C. Kapteyn, Margaret M. Murnane and Misha Ivanov

New Journal of Physics 20 053036 (2018) – arXiv:1606.01931 – pdf

Above-threshold ionization in multicenter molecules: The role of the initial state

Noslen Suárez, Alexis Chacón, Emilio Pisanty, Lisa Ortmann, Alexandra S. Landsman, Antonio Picón, Jens Biegert, Maciej Lewenstein and Marcelo F. Ciappina

Physical Review A 97 033415 (2018) – arXiv:1709.04366 – pdf