Rate coefficients for H-2:H-2 inelastic collisions in the ground vibrational state from 10 to 1000 K

2022-04-05T17:41:13+02:00Tags: |

Authors: Hernandez, M., I; Tejeda, G.; Fernandez, J. M.; Montero, S. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/03/26 DOI: 10.1051/0004-6361/202039790 Abstract: Aims. In this work, we present a pruned set of state-to-state rate coefficients (STS rates) for inelastic H-2:H-2 collisions in the thermal range from 10 to 1000 K. The set includes all relevant rates [...]

Electron-Transfer-Induced Side-Chain Cleavage in Tryptophan Facilitated through Potassium-Induced Transition-State Stabilization in the Gas Phase

2021-03-25T20:21:00+01:00Tags: , , , |

Authors: da Silva, Filipe Ferreira; Cunha, Tiago; Rebelo, Andre; Gil, Adria; Calhorda, Maria Jose; Garcia, Gustavo; Ingolfsson, Oddur; Limao-Vieira, Paulo Journal: JOURNAL OF PHYSICAL CHEMISTRY A Publication date: 2021/03/25 DOI: 10.1021/acs.jpca.1c00690 Abstract: Fragmentation of transient negative ions of tryptophan molecules formed through electron transfer in collisions with potassium atoms is presented for the first time [...]

Work statistics and symmetry breaking in an excited-state quantum phase transition

2022-04-05T17:41:13+02:00Tags: , , |

Authors: Mzaouali, Zakaria; Puebla, Ricardo; Goold, John; El Baz, Morad; Campbell, Steve Journal: PHYSICAL REVIEW E Publication date: 2021/03/25 DOI: 10.1103/PhysRevE.103.032145 Abstract: We examine how the presence of an excited-state quantum phase transition manifests in the dynamics of a many-body system subject to a sudden quench. Focusing on the Lipkin-Meshkov-Glick model initialized in the ground [...]

Electron-Transfer-Induced Side-Chain Cleavage in Tryptophan Facilitated through Potassium-Induced Transition-State Stabilization in the Gas Phase

2022-04-04T17:52:57+02:00Tags: , , , |

Authors: da Silva, Filipe Ferreira; Cunha, Tiago; Rebelo, Andre; Gil, Adria; Calhorda, Maria Jose; Garcia, Gustavo; Ingolfsson, Oddur; Limao-Vieira, Paulo Journal: JOURNAL OF PHYSICAL CHEMISTRY A Publication date: 2021/03/25 DOI: 10.1021/acs.jpca.1c00690 Abstract: Fragmentation of transient negative ions of tryptophan molecules formed through electron transfer in collisions with potassium atoms is presented for the first time [...]

Gaussian phase sensitivity of boson-sampling-inspired strategies

2022-04-05T17:41:13+02:00Tags: , , |

Authors: Valido, Antonio A.; Jose Garcia-Ripoll, Juan Journal: PHYSICAL REVIEW A Publication date: 2021/03/24 DOI: 10.1103/PhysRevA.103.032613 Abstract: In this paper we study the phase sensitivity of generic linear interferometric schemes using Gaussian resources and measurements. Our formalism is based on the Fisher information. This allows us to separate the contributions of the measurement scheme, the [...]

Discovery of the propargyl radical (CH2CCH) in TMC-1: One of the most abundant radicals ever found and a key species for cyclization to benzene in cold dark clouds

2022-04-04T17:52:57+02:00Tags: |

Authors: Agundez, M.; Cabezas, C.; Tercero, B.; Marcelino, N.; Gallego, J. D.; de Vicente, P.; Cernicharo, J. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/03/18 DOI: 10.1051/0004-6361/202140553 Abstract: We present the first identification in interstellar space of the propargyl radical (CH2CCH). This species was observed in the cold dark cloud TMC-1 using the Yebes 40 m [...]

Topological input-output theory for directional amplification

2022-04-05T17:41:13+02:00Tags: , , |

Authors: Ramos, Tomas; Jose Garcia-Ripoll, Juan; Porras, Diego Journal: PHYSICAL REVIEW A Publication date: 2021/03/18 DOI: 10.1103/PhysRevA.103.033513 Abstract: We present a topological approach to the input-output relations of photonic driven-dissipative systems acting as directional amplifiers. Our theory relies on a mapping from the optical non-Hermitian coupling matrix to an effective topological insulator Hamiltonian. This mapping [...]

Discovery of the propargyl radical (CH2CCH) in TMC-1: One of the most abundant radicals ever found and a key species for cyclization to benzene in cold dark clouds

2021-03-18T20:21:00+01:00Tags: |

Authors: Agundez, M.; Cabezas, C.; Tercero, B.; Marcelino, N.; Gallego, J. D.; de Vicente, P.; Cernicharo, J. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/03/18 DOI: 10.1051/0004-6361/202140553 Abstract: We present the first identification in interstellar space of the propargyl radical (CH2CCH). This species was observed in the cold dark cloud TMC-1 using the Yebes 40 m [...]

Light-matter interactions near photonic Weyl points

2021-03-17T20:21:00+01:00Tags: , , |

Authors: Garcia-Elcano, Inaki; Bravo-Abad, Jorge; Gonzalez-Tudela, Alejandro Journal: PHYSICAL REVIEW A Publication date: 2021/03/17 DOI: 10.1103/PhysRevA.103.033511 Abstract: Weyl photons appear when two three-dimensional photonic bands with linear dispersion are degenerate at a single momentum point, labeled as Weyl point. These points have remarkable properties such as being robust topological monopoles of Berry curvature as well [...]

Light-matter interactions near photonic Weyl points

2022-04-04T17:52:58+02:00Tags: , , |

Authors: Garcia-Elcano, Inaki; Bravo-Abad, Jorge; Gonzalez-Tudela, Alejandro Journal: PHYSICAL REVIEW A Publication date: 2021/03/17 DOI: 10.1103/PhysRevA.103.033511 Abstract: Weyl photons appear when two three-dimensional photonic bands with linear dispersion are degenerate at a single momentum point, labeled as Weyl point. These points have remarkable properties such as being robust topological monopoles of Berry curvature as well [...]

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