@article{da9f7c3bf0624a599d032fae56f28bd4,
title = "Quantum-optical analysis of high-order harmonic generation in H2+ molecules",
abstract = "We present a comprehensive theoretical investigation of high-order harmonic generation in H2+ 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 states after the laser-matter interaction. We also identify the possibility of obtaining nonclassical states of light in targeted frequency modes by conditioning on specific electronic quantum states, which turn out to be crucial in the generation of highly nonclassical entangled states between distinct sets of harmonic modes. Our findings open up avenues for studying strong-laser-field-driven interactions in molecular systems under a fully quantum-mechanical framework.",
author = "Javier Rivera-Dean and Philipp Stammer and Maxwell, {Andrew S} and Theocharis Lamprou and Emilio Pisanty and Paraskevas Tzallas and Maciej Lewenstein and Ciappina, {Marcelo Fabi{\'a}n}",
note = "Funding Information: We acknowledge insightful discussions with A. F. Ordaez and H. B. Crispin. J.R.-D., P.S., and M.L. acknowledge support from ERC AdG NOQIA; We acknowledge insightful discussions with A. F. OrdA{\~n}ez and H. B. Crispin. J.R.-D., P.S., and M.L. acknowledge support from ERC AdG NOQIA; MCIN/AEI; QUANTERA DYNAMITE PCI2022-132919 (QuantERA II Programme co-funded by European Union's Horizon 2020 program under Grant Agreement No 101017733), Ministry for Digital Transformation and of Civil Service of the Spanish Government through the QUANTUM ENIA project call - Quantum Spain project, and by the European Union through the Recovery, Transformation and Resilience Plan - NextGenerationEU within the framework of the Digital Spain 2026 Agenda; FundaciA Cellex; FundaciA Mir-Puig; Generalitat de Catalunya (European Social Fund FEDER and CERCA program, AGAUR Grant No. 2021 SGR 01452, QuantumCAT \ U16-011424, co-funded by ERDF Operational Program of Catalonia 2014-2020); Barcelona Supercomputing Center MareNostrum (FI-2023-1-0013); EU Quantum Flagship (PASQuanS2.1, 101113690); EU Horizon 2020 FET-OPEN OPTOlogic (Grant No 899794); EU Horizon Europe Program, ICFO Internal project; European Union's Horizon 2020 program under the Marie Sklodowska-Curie grant agreement No 847648; Junior Leaders fellowships, La Foundation (ID 100010434): CF/BQ/PR23/11980043. Views and opinions expressed are, however, those of the author(s) only and do not necessarily reflect those of the European Union, European Commission, European Climate, Infrastructure and Environment Executive Agency (CINEA), or any other granting authority. Neither the European Union nor any granting authority can be held responsible for them. P.T. and T.L. acknowledge support from LASERLABEUROPE V (H2020-EU.1.4.1.2 Grant No. 871124), the H2020 project IMPULSE (Grant No. GA 871161), and ELI-ALPS. ELI-ALPS is supported by the European Union and co-financed by the European Regional Development Fund (GINOP Grant No. 2.3.6-15-2015-00001). J.R-D. acknowledges funding from the Secretaria d'Universitats i Recerca del Departament d'Empresa i Coneixement de la Generalitat de Catalunya, the European Social Fund (L'FSE inverteix en el teu futur)–FEDER, the Government of Spain (Severo Ochoa Grant No. CEX2019-000910-S and TRANQI), FundaciA Cellex, FundaciA Mir-Puig, Generalitat de Catalunya (CERCA program), and the ERC AdG CERQUTE. P.S. acknowledges funding from the European Union's Horizon 2020 research and innovation program under the Marie Sk{\l}odowska-Curie Grant Agreement No. 847517. A.S.M. acknowledges financial support from the European Union's Horizon 2020 research and innovation program under the Marie Sk{\l}odowska-Curie Grant SSFI Agreement No. 887153. E.P. acknowledges the Royal Society for University Research Fellowship funding under Grant No. URF/R1/211390. M.F.C. acknowledges financial support from the Guangdong Province Science and Technology Major Project (Future functional materials under extreme conditions, Grant No. 2021B0301030005) and the Guangdong Natural Science Foundation (General Program Project No. 2023A1515010871). Funding Information: We acknowledge insightful discussions with A. F. Ord{\'o}{\~n}ez and H. B. Crispin. J.R.-D., P.S., and M.L. acknowledge support from ERC AdG NOQIA; MCIN/AEI (PGC2018-0910.13039/501100011033, CEX2019-000910- S/10.13039/501100011033, Plan National FIDEUA PID2019-106901GB-I00, Plan National STAMEENA PID2022-139099NB-I00 project funded by MCIN/AEI/10. 13039/501100011033 and by the “European Union NextGenerationEU/PRTR” (PRTR-C17.I1), FPI); QUANTERA MAQS PCI2019-111828-2); QUANTERA DYNAMITE PCI2022-132919 (QuantERA II Programme co-funded by European Union's Horizon 2020 program under Grant Agreement No 101017733), Ministry for Digital Transformation and of Civil Service of the Spanish Government through the QUANTUM ENIA project call - Quantum Spain project, and by the European Union through the Recovery, Transformation and Resilience Plan - NextGenerationEU within the framework of the Digital Spain 2026 Agenda; Fundaci{\'o} Cellex; Fundaci{\'o} Mir-Puig; Generalitat de Catalunya (European Social Fund FEDER and CERCA program, AGAUR Grant No. 2021 SGR 01452, QuantumCAT \ U16-011424, co-funded by ERDF Operational Program of Catalonia 2014-2020); Barcelona Supercomputing Center MareNostrum (FI-2023-1-0013); EU Quantum Flagship (PASQuanS2.1, 101113690); EU Horizon 2020 FET-OPEN OPTOlogic (Grant No 899794); EU Horizon Europe Program (Grant Agreement 101080086–NeQST), ICFO Internal “QuantumGaudi” project; European Union's Horizon 2020 program under the Marie Sklodowska-Curie grant agreement No 847648; “La Caixa” Junior Leaders fellowships, La Caixa“ Foundation (ID 100010434): CF/BQ/PR23/11980043. Views and opinions expressed are, however, those of the author(s) only and do not necessarily reflect those of the European Union, European Commission, European Climate, Infrastructure and Environment Executive Agency (CINEA), or any other granting authority. Neither the European Union nor any granting authority can be held responsible for them. P.T. and T.L. acknowledge support from LASERLABEUROPE V (H2020-EU.1.4.1.2 Grant No. 871124), the H2020 project IMPULSE (Grant No. GA 871161), and ELI-ALPS. ELI-ALPS is supported by the European Union and co-financed by the European Regional Development Fund (GINOP Grant No. 2.3.6-15-2015-00001). J.R-D. acknowledges funding from the Secretaria d'Universitats i Recerca del Departament d'Empresa i Coneixement de la Generalitat de Catalunya, the European Social Fund (L'FSE inverteix en el teu futur)–FEDER, the Government of Spain (Severo Ochoa Grant No. CEX2019-000910-S and TRANQI), Fundaci{\'o} Cellex, Fundaci{\'o} Mir-Puig, Generalitat de Catalunya (CERCA program), and the ERC AdG CERQUTE. P.S. acknowledges funding from the European Union's Horizon 2020 research and innovation program under the Marie Sk{\l}odowska-Curie Grant Agreement No. 847517. A.S.M. acknowledges financial support from the European Union's Horizon 2020 research and innovation program under the Marie Sk{\l}odowska-Curie Grant SSFI Agreement No. 887153. E.P. acknowledges the Royal Society for University Research Fellowship funding under Grant No. URF/R1/211390. M.F.C. acknowledges financial support from the Guangdong Province Science and Technology Major Project (Future functional materials under extreme conditions, Grant No. 2021B0301030005) and the Guangdong Natural Science Foundation (General Program Project No. 2023A1515010871). Publisher Copyright: {\textcopyright} 2024 American Physical Society.",
year = "2024",
month = mar,
day = "8",
doi = "10.1103/PhysRevA.109.033706",
language = "English",
volume = "109",
journal = "Physical Review A",
issn = "1050-2947",
publisher = "American Physical Society",
number = "3",
}