Mass spectra and appearance energies of cationic fragments for electron ionization of 2-butanol

2023-01-30T17:36:56+01:00Tags: , , |

Authors: Amorim, R. A. A.; Diniz, A. C.; Oliveira, C. B.; Oliveira Junior, O. L.; Jones, D. B.; Blanco, F.; Garcia, G.; Brunger, M. J.; Lopes, M. C. A. Journal: EUROPEAN PHYSICAL JOURNAL D Publication date: 2022/11/01 DOI: 10.1140/epjd/s10053-022-00537-w Abstract: In this work, the mass spectrum (MS) and the appearance energies (AEs) of the ionic [...]

Assessment of DFT approaches in noble gas clathrate-like clusters: stability and thermodynamics

2023-01-27T15:32:42+01:00Tags: , , , |

Authors: Yanes-Rodriguez, Raquel; Prosmiti, Rita Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS Publication date: 2022/01/19 DOI: 10.1039/d1cp04935f Abstract: We have assessed the performance and accuracy of different wavefunction-based electronic structure methods, such as DFMP2 and domain-based local pair-natural orbital (DLPNO-CCSD(T)), as well as a variety of density functional theory (DFT) approaches on He@(H2O)(N) cage systems. We have [...]

Vibrational effects in the quantum dynamics of the H + D-2(+) charge transfer reaction

2023-01-27T15:32:42+01:00Tags: , , , |

Authors: Roncero, O.; Andrianarijaona, V; Aguado, A.; Sanz-Sanz, C. Journal: MOLECULAR PHYSICS Publication date: 2022/01/17 DOI: 10.1080/00268976.2021.1948125 Abstract: The H + D-2(+)(v = 0,1 and 2) charge transfer reaction is studied using an accurate wave packet method, using recently proposed coupled diabatic potential energy surfaces. The state-to-state cross section is obtained for three different channels: [...]

Imaging the elusive C-C bond dissociation channel of photoexcited ethyl radical

2023-01-27T15:32:42+01:00Tags: , , , |

Authors: Marggi Poullain, Sonia; Rubio-Lago, Luis; Chicharro, David V.; Boullagui, Aymen; Zanchet, Alexandre; Yazidi, Ounaies; Garcia-Vela, Alberto; Banares, Luis Journal: MOLECULAR PHYSICS Publication date: 2022/01/17 DOI: 10.1080/00268976.2021.1984598 Abstract: The C-C bond dissociation channel of the ethyl (CH3-CH2) radical is investigated at 197.4, 199.98 and 201 nm by velocity map imaging and resonance enhanced multiphoton ionisation [...]

Helium structures around SF5+ and SF6+: novel intermolecular potential and mass spectrometry experiments

2023-01-27T15:32:37+01:00Tags: , , , |

Authors: Zunzunegui-Bru, Eva; Gruber, Elisabeth; Bergmeister, Stefan; Meyer, Miriam; Zappa, Fabio; Bartolomei, Massimiliano; Pirani, Fernando; Villarreal, Pablo; Gonzalez-Lezana, Tomas; Scheier, Paul Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS Publication date: 2022/01/26 DOI: 10.1039/d1cp04725f Abstract: Helium clusters around the recently experimentally observed sulphur hexafluoride SF6+ and sulphur pentafluoride SF5+ ions are investigated using a combined experimental and theoretical [...]

Quantum Fourier analysis for multivariate functions and applications to a class of Schrodinger-type partial differential equations

2023-01-27T15:32:37+01:00Tags: , , |

Authors: Garcia-Molina, Paula; Rodriguez-Mediavilla, Javier; Jose Garcia-Ripoll, Juan Journal: PHYSICAL REVIEW A Publication date: 2022/01/31 DOI: 10.1103/PhysRevA.105.012433 Abstract: In this work we develop a highly efficient representation of functions and differential operators based on Fourier analysis. Using this representation, we create a variational hybrid quantum algorithm to solve static, Schrodinger-type, Hamiltonian partial differential equations (PDEs), [...]

Non-Gaussian entanglement swapping between three-mode spontaneous parametric down-conversion and three qubits

2023-01-27T15:32:37+01:00Tags: , , |

Authors: Casado, A. Agusti; Sabin, C. Journal: PHYSICAL REVIEW A Publication date: 2022/02/03 DOI: 10.1103/PhysRevA.105.022401 Abstract: In this work we study the production and swapping of non-Gaussian multipartite entanglement in a setup containing a parametric amplifier which generates three photons in different modes coupled to three qubits. We prove that the entanglement generated in this [...]

Methanol Negative Ion Fragmentation Probed in Electron Transfer Experiments

2023-01-27T15:32:36+01:00Tags: , , , |

Authors: Isabel Lozano, Ana; Kumar, Sarvesh; Kerkeni, Boutheina; Garcia, Gustavo; Limao-Vieira, Paulo Journal: JOURNAL OF PHYSICAL CHEMISTRY A Publication date: 2022/02/24 DOI: 10.1021/acs.jpca.1c07588 Abstract: In this contribution, we report a novel comprehensive investigation on negative ion formation from electron transfer processes mediated by neutral potassium atom collisions with neutral methanol molecules employing experimental and theoretical [...]

Capturing quantum effects with quasi-classical trajectories in the D + H-3(+) -> H2D+ + H reaction

2023-01-27T15:32:36+01:00Tags: , , , |

Authors: Braunstein, Matthew; Bonnet, Laurent; Roncero, Octavio Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS Publication date: 2022/03/02 DOI: 10.1039/d1cp04244k Abstract: We present quasi-classical trajectory (QCT) cross sections, rate constants, and product state distributions for the D + H-3(+) -> H2D+ + H reaction. Using the same H-4(+) potential surface, the rate constants obtained from several QCT-based methods [...]

Out-of-time-order correlator in the quantum Rabi model

2023-01-27T15:32:32+01:00Tags: , , |

Authors: Kirkova, Aleksandrina, V; Porras, Diego; Ivanov, Peter A. Journal: PHYSICAL REVIEW A Publication date: 2022/03/25 DOI: 10.1103/PhysRevA.105.032444 Abstract: We investigate signatures of chaos and equilibration in the quantum Rabi model, which exhibits a quantum phase transition when the ratio of the atomic level-splitting to bosonic frequency grows to infinity. We show that the out-of-time-order [...]

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