Pubs_current Archivos - Instituto De Física Fundamental

Certification of a non-projective qudit measurement using multiport beamsplitters

MCastell2023-07-27T12:22:18+02:00Tags: Multidisciplinary. , Physics|

Authors: Martinez, Daniel; Gomez, Esteban S.; Carine, Jaime; Pereira, Luciano; Delgado, Aldo; Walborn, Stephen P.; Tavakoli, Armin; Lima, Gustavo Journal: NATURE PHYSICS Publication date: 2023/02/01 DOI: 10.1038/s41567-022-01845-z Abstract: The most common form of measurement in quantum mechanics projects a wavefunction onto orthogonal states that correspond to definite outcomes. However, generalized quantum measurements that do not [...]

The quest of null electromagnetics knots from Seifert fibration

MCastell2023-07-27T12:22:18+02:00Tags: Interdisciplinary Applications; Physics, Mathematical. , Mathematics, Multidisciplinary; Physics|

Authors: Arrayas, Manuel; Tiemblo, Alfredo; Trueba, Jose L. Journal: CHAOS SOLITONS & FRACTALS Publication date: 2023/01/01 DOI: 10.1016/j.chaos.2022.113002 Abstract: In this work we find new null electromagnetic fields that are exact solutions of Maxwell equations in vacuum and generalize the hopfion. The hopfion is an exact solution of Maxwell equations in vacuum in which all [...]

History of two mass loss processes in VYCMa Fast outflows carving older ejecta

MCastell2023-07-27T12:22:17+02:00Tags: Astronomy & Astrophysics. |

Authors: Quintana-Lacaci, G.; Velilla-Prieto, L.; Agundez, M.; Fonfria, J. P.; Cernicharo, J.; Decin, L.; Castro-Carrizo, A. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2023/01/05 DOI: 10.1051/0004-6361/202244396 Abstract: Context. Red supergiant stars (RSGs, M-init=10-40 M-circle dot) are known to eject large amounts of material, as much as half of their initial mass during this evolutionary phase. However, [...]

Discovery of interstellar NC4NH+: Dicyanopolyynes are indeed abundant in space

MCastell2023-07-27T12:22:17+02:00Tags: Astronomy & Astrophysics. |

Authors: Agundez, M.; Cabezas, C.; Marcelino, N.; Fuentetaja, R.; Tercero, B.; de Vicente, P.; Cernicharo, J. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2023/01/01 DOI: 10.1051/0004-6361/202245492 Abstract: The previous detection of two species related to the nonpolar molecule cyanogen (NCCN), its protonated form (NCCNH+) and one metastable isomer (CNCN), in cold dense clouds supported the hypothesis [...]

The Binary and the Disk: The Beauty is Found within NGC3132 with JWST

MCastell2023-07-27T12:22:16+02:00Tags: Astronomy & Astrophysics. |

Authors: Sahai, Raghvendra; Bujarrabal, Valentin; Quintana-Lacaci, Guillermo; Reindl, Nicole; Van de Steene, Griet; Contreras, Carmen Sanchez; Ressler, Michael E. Journal: ASTROPHYSICAL JOURNAL Publication date: 2023/02/01 DOI: 10.3847/1538-4357/aca7ba Abstract: The planetary nebula (PN) NGC 3132 is a striking example of the dramatic but poorly understood mass-loss phenomena that (1-8) M (circle dot) stars undergo during their [...]

The conformational behavior of N-ethylformamide as observed by rotational spectroscopy and quantum chemistry

MCastell2023-07-27T12:22:16+02:00Tags: Spectroscopy. |

Authors: Cabezas, Carlos; Kawashima, Yoshiyuki; Bermudez, Celina; Usami, Tsuyoshi; Hirota, Eizi; Cernicharo, Jose Journal: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY Publication date: 2023/04/15 DOI: 10.1016/j.saa.2023.122353 Abstract: A peptide linkage -(C--O)NH- containing molecule, N-ethylformamide, was investigated by rotational spec-troscopy in order to determine the molecular constants of its highest-energy conformer, cis -ac. Its rotational spectrum [...]

Quantum Approximate Optimization Algorithm Pseudo-Boltzmann States

MCastell2023-07-27T12:22:15+02:00Tags: Multidisciplinary. , Physics|

Authors: Diez-Valle, Pablo; Porras, Diego; Garcia-Ripoll, Juan Jose Journal: PHYSICAL REVIEW LETTERS Publication date: 2023/02/02 DOI: 10.1103/PhysRevLett.130.050601 Abstract: In this Letter, we provide analytical and numerical evidence that the single-layer quantum approximate optimization algorithm on universal Ising spin models produces thermal-like states. We find that these pseudo-Boltzmann states can not be efficiently simulated on classical [...]

Gas kinematics around filamentary structures in the Orion B cloud

MCastell2023-07-27T12:22:14+02:00Tags: Astronomy & Astrophysics. |

Authors: Gaudel, Mathilde; Orkisz, Jan H.; Gerin, Maryvonne; Pety, Jerome; Roueff, Antoine; Marchal, Antoine; Levrier, Francois; Miville-Deschenes, Marc-Antoine; Goicoechea, Javier R.; Roueff, Evelyne; Le Petit, Franck; Magalhaes, Victor de Souza; Palud, Pierre; Santa-Maria, Miriam G.; Vono, Maxime; Bardeau, Sebastien; Bron, Emeric; Chainais, Pierre; Chanussot, Jocelyn; Gratier, Pierre; Guzman, Viviana; Hughes, Annie; Kainulainen, Jouni; Languignon, David; [...]

The stochastic wave function method for diffusion of alkali atoms on metallic surfaces

MCastell2023-07-27T12:22:14+02:00Tags: Atomic, Chemistry, Molecular & Chemical. , Physical; Physics|

Authors: Torres-Miyares, E. E.; Ward, D. J.; Rojas-Lorenzo, G.; Rubayo-Soneira, J.; Allison, W.; Miret-Artes, S. Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS Publication date: 2023/02/22 DOI: 10.1039/d2cp05511b Abstract: The stochastic wave function method is proposed to study the diffusion regimes of alkali atoms on metallic surfaces. The Lindblad approach, based on the microscopic Hamiltonian information in the [...]

Gas phase Elemental abundances in Molecular cloudS (GEMS) VII. Sulfur elemental abundance

MCastell2023-07-27T12:22:13+02:00Tags: Astronomy & Astrophysics. |

Authors: Fuente, A.; Riviere-Marichalar, P.; Beitia-Antero, L.; Caselli, P.; Wakelam, V.; Esplugues, G.; Rodriguez-Baras, M.; Navarro-Almaida, D.; Gerin, M.; Kramer, C.; Bachiller, R.; Goicoechea, J. R.; Jimenez-Serra, I.; Loison, J. C.; Martin-Domenech, R.; Ivlev, A.; Spezzano, S.; Roncero, O.; Munoz-Caro, G.; Cazaux, S.; Marcelino, N. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2023/02/15 DOI: 10.1051/0004-6361/202244843 Abstract: [...]