Publications 20192020-01-30T15:23:08+01:00

Publications (2019)

Publications sorted by date descending

Vibrational deactivation in O(P-3) + N-2 collisions: from an old problem towards its solution

Authors: Hong, Qizhen; Bartolomei, Massimiliano; Pirani, Fernando; Esposito, Fabrizio; Sun, Quanhua; Coletti, Cecilia

Journal: PLASMA SOURCES SCIENCE & TECHNOLOGY

Publication date: 2022/08/01

DOI: 10.1088/1361-6595/ac86f3

Abstract: In a recent communication [2021 Phys. Chem. Chem. Phys. 23 15475-79] we showed that the correct modelling of vibrational quenching events in O + N-2(v) collisions, a fundamental process in air plasmas, requires the detailed representation of intermediate and asymptotic regions of the interaction and the inclusion of several types of processes as vibration to translation (V-T) and vibro-electronic (V-E) energy transfer. For the first time […]

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Discovery of fulvenallene in TMC-1 with the QUIJOTE line survey

Authors: Cernicharo, J.; Fuentetaja, R.; Agundez, M.; Kaiser, R., I; Cabezas, C.; Marcelino, N.; Tercero, B.; Pardo, J. R.; de Vicente, P.

Journal: ASTRONOMY & ASTROPHYSICS

Publication date: 2022/07/27

DOI: 10.1051/0004-6361/202244399

Abstract: We report the detection of fulvenallene (c-C5H4CCH2) in the direction of TMC-1 with the QUIJOTE(1) line survey. Thirty rotational transitions with K-a = 0,1,2,3 and J = 9-15 were detected. The best rotational temperature fitting of the data is 9 K and a derived column density is (2.7 +/- 0.3) x 10(12) cm(-2), which is only a factor of […]

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Bridging the gap between topological non-Hermitian physics and open quantum systems

Authors: Gomez-Leon, Alvaro; Ramos, Tomas; Gonzalez-Tudela, Alejandro; Porras, Diego

Journal: PHYSICAL REVIEW A

Publication date: 2022/07/25

DOI: 10.1103/PhysRevA.106.L011501

Abstract: We relate observables in open quantum systems with the topology of non-Hermitian models using the Keldysh path-integral method. This allows to extract an effective Hamiltonian from the Green’s function which contains all the relevant topological information and produces omega-dependent topological invariants, linked to the response functions at a given frequency. Then, we show how to detect a transition between different topological phases by measuring the response to local perturbations. Our formalism is […]

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Unconventional mechanism of virtual-state population through dissipation

Authors: Vivas-Viana, Alejandro; Gonzalez-Tudela, Alejandro; Sanchez Munoz, Carlos

Journal: PHYSICAL REVIEW A

Publication date: 2022/07/22

DOI: 10.1103/PhysRevA.106.012217

Abstract: Virtual states are a central concept in quantum mechanics. By definition, the probability of finding a quantum system in a virtual state should be vanishingly small at all times. In contrast to this notion, we report a phenomenon occurring in open quantum systems by which virtual states can acquire a sizable population in the long-time limit, even if they are not directly coupled to any dissipative channel. This means that the situation in […]

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Dents in the Veil: protostellar feedback in Orion

Authors: Kavak, U.; Bally, J.; Goicoechea, J. R.; Pabst, C. H. M.; van der Tak, F. F. S.; Tielens, A. G. G. M.

Journal: ASTRONOMY & ASTROPHYSICS

Publication date: 2022/07/21

DOI: 10.1051/0004-6361/202243332

Abstract: Context. Interest in stellar feedback has recently increased because new studies suggest that radiative and mechanical feedback from young massive stars significantly regulates the physical and chemical composition of the interstellar medium. Recent SOFIA [C ii] 158 mu m observations of the Orion Veil have revealed that the expanding bubble is powered by stellar winds and influenced by […]

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Atom-surface scattering in the classical multiphonon regime

Authors: Manson, J. R.; Miret-Artes, S.

Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS

Publication date: 2022/07/21

DOI: 10.1039/d2cp01144a

Abstract: Many experiments that utilize beams of incident atoms colliding with surfaces as a probe of surface properties are carried out at large energies, high temperatures and with large mass atoms. Under these conditions the scattering process does not exhibit quantum mechanical properties such as diffraction or single-phonon excitation, but rather can be treated with classical physics. This is a review of work carried out by the authors over a span of several years to […]

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Reconfigurable photon localization by coherent drive and dissipation in photonic lattices

Authors: Jamadi, O.; Real, B.; Sawicki, K.; Hainaut, C.; Gonzalez-Tudela, A.; Pernet, N.; Sagnes, I; Morassi, M.; Lemaitre, A.; Le Gratiet, L.; Harouri, A.; Ravets, S.; Bloch, J.; Amo, A.

Journal: OPTICA

Publication date: 2022/07/20

DOI: 10.1364/OPTICA.452624

Abstract: The engineering of localized modes in photonic structures is one of the main targets of modern photonics. An efficient strategy to design these modes is to use the interplay of constructive and destructive interference in periodic photonic lattices. This mechanism is at the origin of the defect modes in photonic bandgaps, bound states […]

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Discovery of five cyano derivatives of propene with the QUIJOTE line survey

Authors: Cernicharo, J.; Fuentetaja, R.; Cabezas, C.; Agundez, M.; Marcelino, N.; Tercero, B.; Pardo, J. R.; de Vicente, P.

Journal: ASTRONOMY & ASTROPHYSICS

Publication date: 2022/07/20

DOI: 10.1051/0004-6361/202244255

Abstract: We report the discovery of five cyano derivatives of propene towards TMC-1 with the QUIJOTE line survey: trans and cis-crotononitrile (t-CH3CHCHCN, c-CH3CHCHCN), methacrylonitrile (CH2C(CH3)CN), and gauche and cis-allyl cyanide (g-CH2CHCH2CN and c-CH2CHCH2CN). The observed transitions allowed us to derive a common rotational temperature of 7 +/- 1 K for all them. The derived column densities are N(t-CH3CHCHCN) = (5 +/- 0.5) x […]

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Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC

Authors: Abud, A. Abed; Abi, B.; Acciarri, R.; Acero, M. A.; Adames, M. R.; Adamov, G.; Adamowski, M.; Adams, D.; Adinolfi, M.; Aduszkiewicz, A.; Aguilar, J.; Ahmad, Z.; Ahmed, J.; Aimard, B.; Ali-Mohammadzadeh, B.; Alion, T.; Allison, K.; Monsalve, S. Alonso; AlRashed, M.; Alt, C.; Alton, A.; Alvarez, R.; Amedo, P.; Anderson, J.; Andreopoulos, C.; Andreotti, M.; Andrews, M.; Andrianala, F.; Andringa, S.; Anfimov, N.; Ankowski, A.; Antoniassi, M.; Antonova, M.; Antoshkin, A.; Antusch, S.; Aranda-Fernandez, A.; Arellano, L.; Arnold, L. O.; Arroyave, M. A.; Asaadi, J.; Asquith, L.; Aurisano, A.; Aushev, V; Autiero, D.; Ayala Lara, V; […]

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First detection of AIF line emission towards M-type AGB stars

Authors: Saberi, M.; Khouri, T.; Velilla-Prieto, L.; Fonfria, J. P.; Vlemmings, W. H. T.; Wedemeyer, S.

Journal: ASTRONOMY & ASTROPHYSICS

Publication date: 2022/07/13

DOI: 10.1051/0004-6361/202141704

Abstract: The nucleosynthesis production of fluorine (F) is still a matter of debate. Asymptotic giant branch (AGB) stars are one of the main candidates for F production. However, their contribution to the total F budget is not fully known due to the lack of observations. In this paper, we report the detection of aluminium monofluoride (AlF) line emission, one of the two main carriers of F […]

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CERRADA – JAE Intro IFF 2021 bis – Relación provisional de admitidos y excluidos

Documento de relación provisional de admitidos y excluidos al proceso de selección (10 días hábiles a partir del 13/07/22 para subsanación de solicitudes excluidas mediante escrito por correo electrónico a info.iff [at] iff.csic.es con asunto: “Subsanación JAE Intro ICU IFF-CSIC” )

IFF-CSIC: Convocadas plazas de Científico Titular acceso libre

Se ofertan plazas de Científico Titular con destino al IFF-CSIC (entre otros institutos) con los siguientes perfiles:

TECNOLOGÍAS CUÁNTICAS (tribunal número 39), dos plazas del turno general y una del turno de reserva

QUÍMICA COMPUTACIONAL Y MODELIZACIÓN (tribunal número 47), dos plazas de turno general y dos del turno de reserva

Plazo de presentación de solicitudes: 20 días hábiles a partir del día siguiente al 06/07/2022.

Enlace a la información completa de la convocatoria

Discovery of CH2CCHC4H and a rigorous detection of CH2CCHC3N in TMC-1 with the QUIJOTE line survey

Authors: Fuentetaja, R.; Cabezas, C.; Agundez, M.; Tercero, B.; Marcelino, N.; Pardo, J. R.; de Vicente, P.; Cernicharo, J.

Journal: ASTRONOMY & ASTROPHYSICS

Publication date: 2022/07/08

DOI: 10.1051/0004-6361/202243857

Abstract: Using the QUIJOTE line survey in the 32.0-50.4 GHz range, we report the discovery of the molecule CH2CCHC4H towards the prestellar cold core TMC-1 in the Taurus region. We also present a rigorous detection of CH2CCHC3N, along with its detailed analysis. We identified a total of twenty rotational transitions for each one of these molecules. The rotational quantum numbers range from J(u) […]

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Exceptional spectral phase in a dissipative collective spin model

Authors: Rubio-Garcia, Alvaro; Corps, Angel L.; Relano, Armando; Molina, Rafael A.; Perez-Bernal, Francisco; Enrique Garcia-Ramos, Jose; Dukelsky, Jorge

Journal: PHYSICAL REVIEW A

Publication date: 2022/07/07

DOI: 10.1103/PhysRevA.106.L010201

Abstract: We study a model of a quantum collective spin weakly coupled to a spin-polarized Markovian environment and find that the spectrum is divided into two regions that we name normal and exceptional Liouvillian spectral phases. In the thermodynamic limit, the exceptional spectral phase displays the unique property of being made up exclusively of second-order exceptional points. As a consequence, the evolution of any […]

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Molecular hydrogen isotope separation by a graphdiyne membrane: a quantum-mechanical study

Authors: Garcia-Arroyo, Esther; Campos-Martinez, Jose; Bartolomei, Massimiliano; Pirani, Fernando; Hernandez, Marta I.

Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS

Publication date: 2022/07/06

DOI: 10.1039/d2cp01044e

Abstract: Graphdiyne (GDY) has emerged as a very promising two-dimensional (2D) membrane for gas separation technologies. One of the most challenging goals is the separation of deuterium (D-2) and tritium (T-2) from a mixture with the most abundant hydrogen isotope, H-2, an achievement that would be of great value for a number of industrial and scientific applications. In this work we study the separation of hydrogen isotopes in their […]

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