January 2024 - Instituto De Física Fundamental

Impact of Early Coherences on the Control of Ultrafast Photodissociation Reactions

Marcelo Castellanos2024-03-27T14:34:44+01:00Tags: Atomic, Chemistry, Molecular & Chemical. , Multidisciplinary; Physics, Physical; Nanoscience & Nanotechnology; Materials Science|

Authors: Arcos, Carlos G.; Garcia-Vela, Alberto; Sola, Ignacio R. Journal: JOURNAL OF PHYSICAL CHEMISTRY LETTERS Publication date: 2024/01/31 DOI: 10.1021/acs.jpclett.3c03430 Abstract: By coherent control, the yield of photodissociation reactions can be maximized, starting in a suitable superposition of vibrational states. In ultrafast processes, the interfering pathways are born from the early vibrational coherences in the [...]

The CO-to-H2 conversion factor of molecular outflows Rovibrational CO emission in NGC 3256-S resolved by JWST/NIRSpec

Marcelo Castellanos2024-03-27T14:34:43+01:00Tags: Astronomy & Astrophysics. |

Authors: Pereira-Santaella, M.; Gonzalez-Alfonso, E.; Garcia-Bernete, I.; Garcia-Burillo, S.; Rigopoulou, D. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2024/01/26 DOI: 10.1051/0004-6361/202347942 Abstract: We analyze JWST/NIRSpec observations of the CO rovibrational v = 1-0 band at similar to 4.67 mu m around the dust-embedded southern active galactic nucleus (AGN) of NGC 3256 (d = 40 Mpc; L-IR [...]

Light-matter interactions in quantum nanophotonic devices

Marcelo Castellanos2024-03-27T14:34:42+01:00Tags: Applied; Physics, Multidisciplinary. , Physics|

Authors: Gonzalez-Tudela, Alejandro; Reiserer, Andreas; Garcia-Ripoll, Juan Jose; Garcia-Vidal, Francisco J. Journal: NATURE REVIEWS PHYSICS Publication date: 2024/01/25 DOI: 10.1038/s42254-023-00681-1 Abstract: Nanophotonics offers opportunities for engineering and exploiting the quantum properties of light by integrating quantum emitters into nanostructures, and offering reliable paths to quantum technology applications such as sources of quantum light or new [...]

Effect of temperature on the gas-phase reaction of CH3CN with OH radicals: experimental (T=11.7-177.5 K) and computational (T=10-400 K) kinetic study

Marcelo Castellanos2024-03-27T14:34:42+01:00Tags: Atomic, Chemistry, Molecular & Chemical. , Physical; Physics|

Authors: Gonzalez, Daniel; Canosa, Andre; Martinez-Nunez, Emilio; Fernandez-Ramos, Antonio; Ballesteros, Bernabe; Agundez, Marcelino; Cernicharo, Jose; Jimenez, Elena Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS Publication date: 2024/01/24 DOI: 10.1039/d3cp04944b Abstract: Acetonitrile (CH3CN) is present in the interstellar medium (ISM) in a variety of environments. However, at the ultracold temperatures of the ISM, radical-molecule reactions are not widely [...]

HCNH+ abundance in cold dense clouds based on the first hyperfine resolved rate coefficients

Marcelo Castellanos2024-03-27T14:34:41+01:00Tags: Astronomy & Astrophysics. |

Authors: Bop, Cheikh T.; Agundez, Marcelino; Cernicharo, Jose; Lefloch, Bertrand; Lique, Francois Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2024/01/23 DOI: 10.1051/0004-6361/202348947 Abstract: The protonated form of hydrogen cyanide, HCNH+, holds significant importance in astrochemistry, serving as an intermediate species in ion-neutral reactions occurring in the cold molecular clouds. Although it plays a crucial role in [...]

Behind the mask: can HARMONI@ELT detect biosignatures in the reflected light of Proxima b?

Marcelo Castellanos2024-03-27T14:34:41+01:00Tags: Astronomy & Astrophysics. |

Authors: Vaughan, Sophia R.; Birkby, Jayne L.; Thatte, Niranjan; Carlotti, Alexis; Houlle, Mathis; Pereira-Santaella, Miguel; Clarke, Fraser; Vigan, Arthur; Lin, Zifan; Kaltenegger, Lisa Journal: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Publication date: 2024/01/23 DOI: 10.1093/mnras/stae242 Abstract: Proxima b is a rocky exoplanet in the habitable zone of the nearest star system and a key [...]

Analysing the stability of He-filled hydrates: how many He atoms fit in the sII crystal?

Marcelo Castellanos2024-03-27T14:34:38+01:00Tags: Atomic, Chemistry, Molecular & Chemical. , Physical; Physics|

Authors: Yanes-Rodriguez, Raquel; Prosmiti, Rita Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS Publication date: 2024/01/17 DOI: 10.1039/d3cp05410a Abstract: Clathrate hydrates have the ability to encapsulate atoms and molecules within their cavities, and thus they could be potentially large storage capacity materials. The present work studies the multiple cage occupancy effects in the recently discovered He@sII crystal. On [...]

Integral Electron Scattering Cross Sections from N2O for Impact Energies Ranging from 1 to 1000 eV

Marcelo Castellanos2024-03-27T14:34:40+01:00Tags: Atomic, Chemistry, Molecular & Chemical. , Physical; Physics|

Authors: Lozano, Ana I.; Rosado, Jaime; Blanco, Francisco; Limao-Vieira, Paulo; Garcia, Gustavo Journal: JOURNAL OF PHYSICAL CHEMISTRY A Publication date: 2024/01/16 DOI: 10.1021/acs.jpca.3c07708 Abstract: Accurate total cross sections (TCS), within 5%, for electron scattering by N2O molecules have been measured with a magnetically confined electron transmission apparatus for impact energies ranging from 1 to 200 [...]

Effect of temperature on the gas-phase reaction of CH3CN with OH radicals: experimental (T=11.7-177.5 K) and computational (T=10-400 K) kinetic study

Marcelo Castellanos2024-03-27T14:34:39+01:00Tags: Atomic, Chemistry, Molecular & Chemical. , Physical; Physics|

Authors: Gonzalez, Daniel; Canosa, Andre; Martinez-Nunez, Emilio; Fernandez-Ramos, Antonio; Ballesteros, Bernabe; Agundez, Marcelino; Cernicharo, Jose; Jimenez, Elena Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS Publication date: 2024/01/13 DOI: 10.1039/d3cp04944b Abstract: Acetonitrile (CH3CN) is present in the interstellar medium (ISM) in a variety of environments. However, at the ultracold temperatures of the ISM, radical-molecule reactions are not widely [...]