Publications (2019)
Publications sorted by date descending
Quantum Control of Resonance Lifetimes in Molecular Photodissociation with Intense Laser Fields
Authors: Garcia-Vela, Alberto
Journal: JOURNAL OF CHEMICAL THEORY AND COMPUTATION
Publication date: 2025/02/10
Abstract: Control of molecular reaction dynamics has been pursued in the last decades. Among these reactions are molecular photodissociation processes governed by resonances. Controlling the lifetime of such resonances imply to control the time duration of the processes. Here, some control schemes that apply moderately intense laser fields are proposed to modify (reducing or increasing) a resonance lifetime. The control strategy applies an intense field as a way to generate a new effective coupling that produces […]
Superoxide anion (O2-) collisions with CO2 molecules in the energy range of 50-950 eV
Authors: Guerra, C.; Leiferman, M.; Lozano, A. I.; Aguilar-Galindo, F.; Diaz-Tendero, S.; Oller, J. C.; Limao-Vieira, P.; Garcia, G.
Journal: JOURNAL OF CHEMICAL PHYSICS
Publication date: 2025/02/07
DOI: 10.1063/5.0242954
Abstract: A novel gas-phase molecular scattering study is reported for O-2(-) collisions with CO2 for impact energies ranging from 50 to 950 eV in the lab frame. The absolute total electron detachment, relative total, and partial ionization cross sections have been measured within this energy range together with the positive ion yields. The primary anionic beam projectile is produced in a pulsed […]
Light-matter correlations in Quantum Floquet engineering of cavity quantum materials
Authors: Perez-Gonzalez, Beatriz; Platero, Gloria; Gomez-Leon, Alvaro
Journal: QUANTUM
Publication date: 2025/02/06
Abstract: Quantum Floquet engineering (QFE) seeks to generalize the control of quantum systems with classical external fields, widely known as Semi-Classical Floquet engineering (SCFE), to quantum fields. However, to faithfully capture the physics at arbitrary coupling, a gauge-invariant description of light-matter interaction in cavity-QED materials is required, which makes the Hamiltonian highly non-linear in photonic operators. We provide a non-perturbative truncation scheme of the Hamiltonian, which is valid or arbitrary coupling strength, and use it to investigate […]
On the role of true and false chirality in producing parity-violating energy differences
Authors: Martinez-Gil, Daniel; Bargueno, Pedro; Miret-Artes, Salvador
Journal: PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
Publication date: 2025/02/05
Abstract: In this work, we tackle the problem of showing which type of influences can lift the degeneracy between truly and falsely chiral systems, showing that only when both systems and influences are both truly (falsely) chiral, a parity violating energy difference between left-handed (L) and right-handed (R) systems can be produced. In particular, after considering the enantiomers of a chiral molecule as paradigmatic truly chiral systems, we […]
The Galaxy Activity, Torus, and Outflow Survey (GATOS). VII. The 20-214 ?m Imaging Atlas of Active Galactic Nuclei Using SOFIA
Authors: Fuller, Lindsay; Lopez-Rodriguez, Enrique; Garcia-Bernete, Ismael; Ramos Almeida, Cristina; Alonso-Herrero, Almudena; Packham, Chris; Zhang, Lulu; Leist, Mason; Levenson, Nancy A.; Imanishi, Masatoshi; Hoenig, Sebastian; Stalevski, Marko; Ricci, Claudio; Hicks, Erin; Bellocchi, Enrica; Combes, Francoise; Davies, Ric; Garcia Burillo, Santiago; Gonzalez Martin, Omaira; Izumi, Takuma; Labiano, Alvaro; Pereira Santaella, Miguel; Rigopoulou, Dimitra; Rosario, David; Rouan, Daniel; Shimizu, Taro; Ward, Martin
Journal: ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Publication date: 2025/02/01
Abstract: We present a 19.7-214 mu m imaging atlas of local (4-181 Mpc; median 43 Mpc) active galactic nuclei (AGN) observed […]
Scan Quantum Mechanics: Quantum Inertia Stops Superposition
Authors: Gato-Rivera, Beatriz
Journal: UNIVERSE
Publication date: 2025/02/01
Abstract: Scan Quantum Mechanics (SQM) is a novel interpretation in which the superposition of states is only an approximate effective concept due to lack of time resolution. Quantum systems scan all possible states in the apparent superpositions and switch randomly and very rapidly among them. A crucial property that we postulate is quantum inertia Iq, that increases whenever a constituent is added, or the system is perturbed with all kinds of interactions. Once the quantum inertia reaches a critical value Icr […]
Linear response theory for cavity QED materials at arbitrary light-matter coupling strengths
Authors: Roman-Roche, Juan; Gomez-Leon, Alvaro; Luis, Fernando; Zueco, David
Journal: PHYSICAL REVIEW B
Publication date: 2025/01/31
DOI: 10.1103/PhysRevB.111.035156
Abstract: We develop a linear response theory for materials collectively coupled to a cavity that is valid in all regimes of light-matter coupling, including symmetry-broken phases. We present and compare two different approaches. First, we use a coherent path-integral formulation for the partition function to obtain thermal Green’s functions. This approach relies on a saddle-point expansion for the action that can be truncated in the thermodynamic limit. Second, we formulate the equations of […]
The Galaxy Activity, Torus, and Outflow Survey (GATOS) VI. Black hole mass estimation using machine learning
Authors: Poitevineau, R.; Combes, F.; Garcia-Burillo, S.; Cornu, D.; Herrero, A. Alonso; Almeida, C. Ramos; Audibert, A.; Bellocchi, E.; Boorman, P. G.; Bunker, A. J.; Davies, R.; Diaz-Santos, T.; Garcia-Bernete, I.; Garcia-Lorenzo, B.; Gonzalez-Martin, O.; Hicks, E. K. S.; Hoenig, S. F.; Hunt, L. K.; Imanishi, M.; Pereira-Santaella, M.; Ricci, C.; Rigopoulou, D.; Rosario, D. J.; Rouan, D.; Martin, M. Villar; Ward, M.
Journal: ASTRONOMY & ASTROPHYSICS
Publication date: 2025/01/29
DOI: 10.1051/0004-6361/202347566
Abstract: The detailed feeding and feedback mechanisms of active galactic nuclei (AGNs) are not yet well known. For low-luminosity […]
Detection of thioacetaldehyde (CH3CHS) in TMC-1: Sulfur-oxygen differentiation along the hydrogenation sequence?
Authors: Agundez, M.; Molpeceres, G.; Cabezas, C.; Marcelino, N.; Tercero, B.; Fuentetaja, R.; de Vicente, P.; Cernicharo, J.
Journal: ASTRONOMY & ASTROPHYSICS
Publication date: 2025/01/28
DOI: 10.1051/0004-6361/202453459
Abstract: In recent years, the chemistry of sulfur in the interstellar medium has experienced renewed interest due to the detection of a large variety of molecules containing sulfur. We report the first identification in space of a new S-bearing molecule, thioacetaldehyde (CH3CHS), which is the sulfur counterpart of acetaldehyde (CH3CHO). The astronomical observations are part of QUIJOTE, a Yebes 40 m Q-band line survey […]
Photon antibunching in single-molecule vibrational sum-frequency generation
Authors: Kalarde, Fatemeh Moradi; Ciccarello, Francesco; Munoz, Carlos Sanchez; Feist, Johannes; Galland, Christophe
Journal: NANOPHOTONICS
Publication date: 2025/01/21
Abstract: Sum-frequency generation (SFG) enables the coherent upconversion of electromagnetic signals and plays a significant role in mid-infrared vibrational spectroscopy for molecular analysis. Recent research indicates that plasmonic nanocavities, which confine light to extremely small volumes, can facilitate the detection of vibrational SFG signals from individual molecules by leveraging surface-enhanced Raman scattering combined with mid-infrared laser excitation. In this article, we compute the degree of second order coherence (g (2)(0)) of […]
JWST Discovery of a Very Fast Biconical Outflow of Warm Molecular Gas in the Nearby Ultraluminous Infrared Galaxy F08572+3915 NW
Authors: Dan, Kylie Yui; Seebeck, Jerome; Veilleux, Sylvain; Rupke, David; Gonzalez-Alfonso, Eduardo; Garcia-Bernete, Ismael; Liu, Weizhe; Lutz, Dieter; Melendez, Marcio; Santaella, Miguel Pereira; Sturm, Eckhard; Tombesi, Francesco
Journal: ASTROPHYSICAL JOURNAL
Publication date: 2025/01/20
Abstract: We present new James Webb Space Telescope (JWST) Mid-Infrared Instrument Medium-Resolution Spectrometer observations of the nearby ultraluminous infrared galaxy (ULIRG) F08572+3915 NW. These integral field spectroscopic (IFS) data reveal a kpc-scale warm-molecular rotating disk and biconical outflow traced by the H2 nu = 0-0 S(1), S(2), S(3), and S(5) rotational transitions. The outflow maintains a […]
Molecular gas stratification and disturbed kinematics in the Seyfert galaxy MCG-05-23-16 revealed by JWST and ALMA
Authors: Esparza-Arredondo, D.; Almeida, C. Ramos; Audibert, A.; Pereira-Santaella, M.; Garcia-Bernete, I.; Garcia-Burillo, S.; Shimizu, T.; Davies, R.; Munoz, L. Hermosa; Alonso-Herrero, A.; Combes, F.; Speranza, G.; Zhang, L.; Campbell, S.; Bellocchi, E.; Bunker, A. J.; Diaz-Santos, T.; Garcia-Lorenzo, B.; Gonzalez-Martin, O.; Hicks, E. K. S.; Labiano, A.; Levenson, N. A.; Ricci, C.; Rosario, D.; Hoenig, S.; Packham, C.; Stalevski, M.; Fuller, L.; Izumi, T.; Lopez-Rodriguez, E.; Rigopoulou, D.; Rouan, D.; Ward, M.
Journal: ASTRONOMY & ASTROPHYSICS
Publication date: 2025/01/15
DOI: 10.1051/0004-6361/202452488
Abstract: Understanding the processes that drive the morphology and […]
Inelastic H + H3+ collision rates and their impact on the determination of the excitation temperature of H3+
Authors: Felix-Gonzalez, Daniel; del Mazo-Sevillano, Pablo; Aguado, Alfredo; Roncero, Octavio; Le Bourlot, Jacques; Roueff, Evelyne; Le Petit, Franck; Bron, Emeric
Journal: ASTRONOMY & ASTROPHYSICS
Publication date: 2025/01/15
DOI: 10.1051/0004-6361/202452977
Abstract: Context. In diffuse interstellar clouds, the excitation temperature derived from the lowest levels of H3+ is systematically lower than that derived from H2. The differences may be attributed to the lack of state-specific formation and destruction rates of H3+, which are needed to thermalize the two species.Aims. In this work, we aim to investigate the possible influence of rotational excitation collisions […]
Identification of the interstellar 1-cyano propargyl radical (HCCCHCN) in TMC-1
Authors: Cabezas, C.; Agundez, M.; Marcelino, N.; Chang, C. H.; Fuentetaja, R.; Tercero, B.; Nakajima, M.; Endo, Y.; de Vicente, P.; Cernicharo, J.
Journal: ASTRONOMY & ASTROPHYSICS
Publication date: 2025/01/13
DOI: 10.1051/0004-6361/202453419
Abstract: We report the first detection in interstellar medium of the 1-cyano propargyl radical, HC3HCN. This species is an isomer of the 3-cyano propargyl radical (CH2C3N), which was recently discovered in TMC-1. The 1-cyano propargyl radical was observed in the cold dark cloud TMC-1 using data from the ongoing QUIJOTE line survey, which is being carried out with the […]
Adsorption of molecular hydrogen on extended graphene prototypes decorated with sodium: a quantum-mechanical study
Authors: Garcia-Arroyo, Esther; Bartolomei, Massimiliano; Hernandez, Marta, I; Gonzalez-Lezana, Tomas; Mella, Massimo; Campos-Martinez, Jose
Journal: PHYSICA SCRIPTA
Publication date: 2025/01/01
Abstract: This paper presents a study of sodium-decorated circumcircumcoronene, a large polycyclic aromatic hydrocarbon (PAH) regarded as a graphene prototype, and the complexes formed upon aggregation of hydrogen molecules on this substrate. Accurate force fields based on high level electronic structure calculations have been built using a rigid rotor model for the hydrogen molecules as well as a corresponding pseudo-atom approximation, aimed to pursue larger compounds where a simpler […]