Complete Physical Characterization of Quantum Nondemolition Measurements via Tomography

2022-06-29T20:22:00+02:00Tags: |

Authors: Pereira, L.; Garcia-Ripoll, J. J.; Ramos, And T. Journal: PHYSICAL REVIEW LETTERS Publication date: 2022/06/29 DOI: 10.1103/PhysRevLett.129.010402 Abstract: We introduce a self-consistent tomography for arbitrary quantum nondemolition (QND) detectors. Based on this, we build a complete physical characterization of the detector, including the measurement processes and a quantification of the fidelity, ideality, and backaction [...]

Unraveling the Origin of Symmetry Breaking in H2O@C-60 Endofullerene Through Quantum Computations

2022-06-22T16:42:03+02:00Tags: , , , |

Authors: Carrillo-Bohorquez, Orlando; Valdes, Alvaro; Prosmiti, Rita Journal: CHEMPHYSCHEM Publication date: 2022/03/14 DOI: 10.1002/cphc.202200034 Abstract: We explore the origin of the anomalous splitting of the 1(01) levels reported experimentally for the H2O@C-60 endofullerene, in order to give some insight about the physical interpretations of the symmetry breaking observed. We performed fully-coupled quantum computations within the [...]

Absolute total electron detachment and relative ionisation cross sections for O-2 (-) collisions with O-2 in the energy range (10-1500 eV)

2022-06-22T16:39:07+02:00Tags: , |

Authors: Guerra, Carlos; Lozano, Ana, I; Mendes, Monica F.; Kumar, Sarvesh; Oller, Juan C.; Limao-Vieira, Paulo; Garcia, Gustavo Journal: PLASMA SOURCES SCIENCE & TECHNOLOGY Publication date: 2022/03/01 DOI: 10.1088/1361-6595/ac4e22 Abstract: Absolute total electron detachment cross for O-2 (-) collisions with O-2 are reported for impact energies ranging from 10 to 1600 eV as measured with [...]

First-principles modelling of the new generation of subnanometric metal clusters: Recent case studies

2022-06-22T16:34:21+02:00Tags: , |

Authors: de Lara-Castells, Maria Pilar Journal: JOURNAL OF COLLOID AND INTERFACE SCIENCE Publication date: 2022/04/06 DOI: 10.1016/j.jcis.2021.12.186 Abstract: The very recent development of highly selective techniques making possible the synthesis and experimental characterization of subnanometric (subnanometer-sized) metal clusters (even single atoms) is pushing our understanding far beyond the present knowledge in materials science, driving these [...]

Critical quantum metrology with fully-connected models: from Heisenberg to Kibble-Zurek scaling

2022-09-19T15:57:11+02:00Tags: , |

Authors: Garbe, Louis; Abah, Obinna; Felicetti, Simone; Puebla, Ricardo Journal: QUANTUM SCIENCE AND TECHNOLOGY Publication date: 2022/06/15 DOI: 10.1088/2058-9565/ac6ca5 Abstract: Phase transitions represent a compelling tool for classical and quantum sensing applications. It has been demonstrated that quantum sensors can in principle saturate the Heisenberg scaling, the ultimate precision bound allowed by quantum mechanics, in [...]

Dispersive Readout of Molecular Spin Qudits

2022-06-14T20:22:00+02:00Tags: |

Authors: Gomez-Leon, Alvaro; Luis, Fernando; Zueco, David Journal: PHYSICAL REVIEW APPLIED Publication date: 2022/06/14 DOI: 10.1103/PhysRevApplied.17.064030 Abstract: We study the physics of a magnetic molecule described by a ???giant??? spin with multiple (d > 2) spin states interacting with the quantized cavity field produced by a superconducting resonator. By means of the input-output formalism, we [...]

Concedida una acción COST a un multiequipo liderado por el IFF

2022-06-28T19:14:32+02:00Tags: , , , |

La investigadora del IFF, Dra. María Pilar de Lara Castells, lidera una red de investigación interdisciplinar que acaba de ser aprobada para su financiación por la organización COST (European Cooperation in Science and Tecnology). La acción COST aprobada aglutina a 40 países con cerca de 140 grupos de investigación, que abarcan los campos de Física [...]

Internal rotation analysis of the microwave and millimeter wave spectra of fluoral (CF3CHO)

2022-09-19T15:57:06+02:00Tags: |

Authors: Bermudez, C.; Motiyenko, R. A.; Cabezas, C.; Ilyushin, V. V.; Margules, L.; Endo, Y.; Guillemin, J. C. Journal: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY Publication date: 2022/06/05 DOI: 10.1016/j.saa.2022.121071 Abstract: The rotational spectrum (4-40 GHz and 50-330 GHz) has been measured and analyzed for trifluoroacetaldehyde, also known as fluoral (CF3CHO), which is one [...]

(Closed) Becas JAE Intro IFF 2021 bis

2022-07-11T12:42:49+02:00Tags: , , , , |

El Instituto de Física Fundamental ofrece 4 becas de introducción a la investigación (JAE-Intro-IFF) para estudiantes universitarios: - Dirigido a: Estudiantes cursando el penúltimo/último año de grado o máster universitario oficial. - Duración: 3 meses. - Remuneración: 600 euros/mes (tiempo máximo de dedicación semanal: 20 horas). - Plazo de solicitud: desde el 7 de junio hasta [...]

Delving into guest-free and He-filled sI and sII clathrate hydrates: a first-principles computational study

2022-09-19T15:57:18+02:00Tags: , , , |

Authors: Yanes-Rodriguez, Raquel; Cabrera-Ramirez, Adriana; Prosmiti, Rita Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS Publication date: 2022/06/01 DOI: 10.1039/d2cp00701k Abstract: The dynamics of the formation of a specific clathrate hydrate as well as its thermodynamic transitions depend on the interactions between the trapped molecules and the host water lattice. The molecular-level understanding of the different underlying processes [...]

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