Unexpected benzene oxidation in collisions with superoxide anions

2021-11-30T20:21:00+01:00Tags: |

Authors: Guerra, Carlos; Kumar, Sarvesh; Aguilar-Galindo, Fernando; Diaz-Tendero, Sergio; Lozano, Ana, I; Mendes, Monica; Limao-Vieira, Paulo; Garcia, Gustavo Journal: SCIENTIFIC REPORTS Publication date: 2021/11/30 DOI: 10.1038/s41598-021-02408-7 Abstract: Superoxide anions colliding with benzene molecules at impact energies from 200 to 900 eV are reported for the first time to form massive complexes. With the aid of [...]

Three-Josephson junctions flux qubit couplings

2021-11-29T20:21:00+01:00Tags: , |

Authors: Hita-Perez, Maria; Jauma, Gabriel; Pino, Manuel; Garcia-Ripoll, Juan Jose Journal: APPLIED PHYSICS LETTERS Publication date: 2021/11/29 DOI: 10.1063/5.0069530 Abstract: We analyze the coupling of two flux qubits with a general many-body projector into the low-energy subspace. Specifically, we extract the effective Hamiltonians that controls the dynamics of two qubits when they are coupled via [...]

Photodissociation of the methyl radical: the role of nonadiabatic couplings in enhancing the variety of dissociation mechanisms

2021-11-24T20:21:00+01:00Tags: , , , |

Authors: Garcia-Vela, A. Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS Publication date: 2021/11/24 DOI: 10.1039/d1cp03293c Abstract: The nonadiabatic photodissociation dynamics of the CH3 (and CD3) radical from the 3p(z) and 3s Rydberg states is investigated by applying a one-dimensional (1D) wave packet model that uses recently calculated ab initio 1D electronic potential-energy curves and nonadiabatic couplings. Calculated [...]

Qubit-photon bound states in topological waveguides with long-range hoppings

2021-11-19T20:21:00+01:00Tags: , , |

Authors: Vega, C.; Bello, M.; Porras, D.; Gonzalez-Tudela, A. Journal: PHYSICAL REVIEW A Publication date: 2021/11/19 DOI: 10.1103/PhysRevA.104.053522 Abstract: Quantum emitters interacting with photonic band-gap materials lead to the appearance of qubit-photon bound states that mediate decoherence-free, tunable emitter-emitter interactions. Recently, it has been shown that when these band gaps have a topological origin, like [...]

Digital quantum simulation of beam splitters and squeezing with IBM quantum computers

2021-11-18T20:21:00+01:00Tags: , , |

Authors: Cordero Encinar, Paula; Agusti, Andres; Sabin, Carlos Journal: PHYSICAL REVIEW A Publication date: 2021/11/18 DOI: 10.1103/PhysRevA.104.052609 Abstract: We present results on the digital quantum simulations of beam-splitter and squeezing interactions. The bosonic Hamiltonians are mapped to qubits and then digitalized in order to implement them in the IBM quantum devices. We use error mitigation [...]

Photon-Mediated Interactions near a Dirac Photonic Crystal Slab

2021-11-17T20:21:00+01:00Tags: , , , |

Authors: Petrovish Navarro-Baron, Erik; Vinck-Posada, Herbert; Gonzalez-Tudela, Alejandro Journal: ACS PHOTONICS Publication date: 2021/11/17 DOI: 10.1021/acsphotonics.1c00991 Abstract: Dirac energy dispersions are responsible for the extraordinary transport properties of graphene. This motivated the quest for engineering such energy dispersions also in photonics, where they have been predicted to lead to many exciting phenomena. One paradigmatic example [...]

Alejandro González Tudela, premio “Miguel Catalán” 2021 a investigador de menos de 40 años

2021-11-15T20:35:42+01:00Tags: , , , |

Alejandro González Tudela, científico titular del Instituto de Física Fundamental (IFF-CSIC) y miembro de la Real Sociedad Española de Física, recibió el pasado 5 de noviembre el Premio de Investigación Miguel Catalán 2021 en la categoría de investigadores menores de 40 años y en la sección de Ciencias Básicas. Este premio en ciencias es concedido [...]

Discovery of two isomers of ethynyl cyclopentadiene in TMC-1: Abundances of CCH and CN derivatives of hydrocarbon cycles

2021-11-09T20:21:00+01:00Tags: |

Authors: Cernicharo, J.; Agundez, M.; Kaiser, R., I; Cabezas, C.; Tercero, B.; Marcelino, N.; Pardo, J. R.; de Vicente, P. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/11/09 DOI: 10.1051/0004-6361/202142226 Abstract: We report the detection of two isomers of ethynyl cyclopentadiene (c-C5H5CCH), namely 1- and 2-ethynyl-1,3-cyclopentadiene, in the direction of TMC-1. We derive column densities of [...]

Reactivity and internal dynamics in the Criegee intermediate CH2OO-CO2 system: A rotational study

2022-04-05T17:40:55+02:00Tags: |

Authors: Cabezas, Carlos; Daly, Adam M.; Endo, Yasuki Journal: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY Publication date: 2021/11/05 DOI: 10.1016/j.saa.2021.119945 Abstract: The reaction system between the simplest Criegee intermediate, CH2OO, and the greenhouse gas CO2 has been investigated by Fourier transform microwave spectroscopy. The CH2OO-CO2 weakly bound complex was identified in the rotational spectrum, [...]

Collisional cooling of primordial and interstellar media by H-2

2021-11-01T20:21:00+01:00Tags: |

Authors: Flower, D. R.; des Forets, G. Pineau; Hily-Blant, P.; Faure, A.; Lique, F.; Gonzalez-Lezana, T. Journal: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Publication date: 2021/11/01 DOI: 10.1093/mnras/stab2272 Abstract: We have computed the rate of collisional cooling of a gas by H-2 molecules under conditions appropriate to the primordial and interstellar media. We incorporated [...]

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