Quantum chaotic fluctuation-dissipation theorem: Effective Brownian motion in closed quantum systems

2020-01-16T12:54:22+01:00Tags: , , |

Authors: Nation, Charlie; Porras, Diego Contribution: Article Journal: PHYSICAL REVIEW E Publication date: 2019/05/30 DOI: 10.1103/PhysRevE.99.052139 Abstract: We analytically describe the decay to equilibrium of generic observables of a nonintegrable system after a perturbation in the form of a random matrix. We further obtain an analytic form for the time-averaged fluctuations of an observable in terms [...]

A sensitive lambda 3 mm line survey of L483 A broad view of the chemical composition of a core around a Class 0 object

2020-01-16T12:54:22+01:00Tags: |

Authors: Agundez, M.; Marcelino, N.; Cernicharo, J.; Roueff, E.; Tafalla, M. Contribution: Article Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2019/05/29 DOI: 10.1051/0004-6361/201935164 Abstract: An exhaustive chemical characterization of dense cores is mandatory to our understanding of chemical composition changes from a starless to a protostellar stage. However, only a few sources have had their molecular composition [...]

‘La aceleración del universo’, nuevo libro de la colección ‘¿Qué sabemos de?’

2019-09-12T16:47:08+02:00Tags: , , , |

¿Cuál es el valor actual de la expansión del universo? ¿Corresponde la energía oscura a la constante cosmológica de Einstein o es otra su naturaleza? ¿Es la teoría de la relatividad general el mejor marco para entender la aceleración? ¿Cómo se relaciona todo ello con la teoría del multiverso? En su libro La aceleración del universo, [...]

Full Dimensional Potential Energy Function and Calculation of State-Specific Properties of the CO+N-2 Inelastic Processes Within an Open Molecular Science Cloud Perspective

2020-01-16T12:54:22+01:00Tags: , |

Authors: Lombardi, Andrea; Pirani, Fernando; Bartolomei, Massimiliano; Coletti, Cecilia; Leona, Antonio Contribution: Article Journal: FRONTIERS IN CHEMISTRY Publication date: 2019/05/22 DOI: 10.3389/fchem.2019.00309 Abstract: A full dimensional Potential Energy Surface (PES) of the CO + N-2 system has been generated by extending an approach already reported in the literature and applied to N-2-N-2 (Cappelletti et al., 2008), [...]

Study on Tl-204 simultaneous electron and photon emission spectra and their interaction with gold absorbers. Experimental results and Monte Carlo simulations

2020-01-16T12:54:24+01:00Tags: , , |

Authors: Williart, Amalia; Munoz, Antonio; Boscolo, Dania; Scifoni, Emanuele; Kraemer, Michael; Garcia, Gustavo Contribution: Article Journal: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT Publication date: 2019/05/21 DOI: 10.1016/j.nima.2019.03.006 Abstract: This work presents the experimental spectra obtained with different gold absorbers for incident electron and photon radiation induced by Tl-204. [...]

Engineering and Harnessing Giant Atoms in High-Dimensional Baths: A Proposal for Implementation with Cold Atoms

2020-01-16T12:54:24+01:00Tags: , |

Authors: Gonzalez-Tudela, A.; Munoz, C. Sanchez; Cirac, J., I Contribution: Article Journal: PHYSICAL REVIEW LETTERS Publication date: 2019/05/21 DOI: 10.1103/PhysRevLett.122.203603 Abstract: Emitters coupled simultaneously to distant positions of a photonic bath, the so-called giant atoms, represent a new paradigm in quantum optics. When coupled to one-dimensional baths, as recently implemented with transmission lines or SAW waveguides, [...]

Electron scattering from 1-butanol at intermediate impact energies: Total cross sections

2020-01-16T12:54:22+01:00Tags: , , , |

Authors: Gomes, M.; da Silva, D. G. M.; Fernandes, A. C. P.; Ghosh, S.; Pires, W. A. D.; Jones, D. B.; Blanco, F.; Garcia, G.; Brunger, M. J.; Lopes, M. C. A. Contribution: Article Journal: JOURNAL OF CHEMICAL PHYSICS Publication date: 2019/05/21 DOI: 10.1063/1.5096211 Abstract: We report experimental measurements of the absolute total cross sections (TCSs) [...]

Entanglement through qubit motion and the dynamical Casimir effect

2020-01-16T12:54:24+01:00Tags: , , |

Authors: Agusti, Andres; Solano, Enrique; Sabin, Carlos Contribution: Article Journal: PHYSICAL REVIEW A Publication date: 2019/05/20 DOI: 10.1103/PhysRevA.99.052328 Abstract: We explore the interplay between acceleration radiation and the dynamical Casimir effect in the field of superconducting quantum technologies, analyzing the generation of entanglement between two qubits by means of the dynamical Casimir effect in several states [...]

Lithium ions solvated in helium

2019-07-19T18:10:21+02:00

Authors: Monisha Rastogi, Christian Leidlmair, Lukas An der Lan, Josu Ortiz de Zárate, Ricardo Pérez de Tudela, Massimiliano Bartolomei, Marta I. Hernández, José Campos-Martínez, Tomás González-Lezana, Javier Hernández-Rojas, José Bretón, Paul Scheiera and Michael Gatchell. Contribution: Article Journal: Phys. Chem. Chem. Phys. Publication date: 28 25569-25576 (2018) DOI: 10.1039/C8CP04522D Abstract: We report on a combined experimental [...]

Electron–Phonon Coupling Constant of Metallic Overlayers from Specular He Atom Scattering

2019-07-19T18:10:58+02:00

Authors: G. Benedek, Salvador Miret-Artés, J. P. Toennies and J. R. Manson. Contribution: Article Journal: J. Phys. Chem. Lett. Publication date: 76-83 (2018) DOI: 10.1021/acs.jpclett.7b03047 Abstract: He atom scattering has been shown to be a sensitive probe of electron–phonon interaction properties at surfaces. Here it is shown that measurements of the thermal attenuation of the specular [...]