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Autor Gonzalo Fonrodona, Isabel |
Documentos disponibles escritos por este autor (28)
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Bargueño, Pedro ; Pérez de Tudela, Ricardo ; Miret Artés, Salvador ; Gonzalo Fonrodona, Isabel | Royal Society of Chemistry | 2011Interactions which do not conserve parity might influence chiral compounds giving rise to a parity violating energy difference (PVED) that might have affected the evolution towards homochirality. However, this tiny effect predicted by electrowea[...]![]()
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Weigand Talavera, Rosa María ; Calvo Padilla, María Luisa ; Gonzalo Fonrodona, Isabel ; Villafranca Velasco, Aitor | 2017-01Se generaran topografías FDTD en sistemas fotónicos para ejemplificación en clase por parte del profesor, realización de trabajos en grupo, realización de prácticas de laboratorio, autoaprendizaje del alumno y Trabajos Fin de Grado y Máster.![]()
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Antón Revilla, Miguel Ángel ; Gonzalo Fonrodona, Isabel ; Carreño Sánchez, Fernando | IOP Publishing | 2021-01-16Entanglement generation and control of two spatially separated asymmetric quantum dots with broken inversion symmetry and mediated by a photonic cavity is studied using a quantum master equation formalism. The quantum dots are coherently driven [...]![]()
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Gonzalo Rodríguez-Leal, Justo ; Gonzalo Fonrodona, Isabel | Edited by Isabel Gonzalo Fonrodona | 2021-02-11This book is the English translation of the published book in Spanish: Dinámica Cerebral, by Justo Gonzalo, Vol. 1, published by the Consejo Superior de Investigaciones Científicas, Madrid 1945. A facsimile Spanish edition includindg Vol. 2 and [...]![]()
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Porras, Miguel A. ; Luis Aina, Alfredo ; Gonzalo Fonrodona, Isabel | American Physical Society | 2013-11-04We provide theoretical and experimental evidence of a classical-optics realization of quantum Zeno dynamics. In contrast to other approaches, the classical implementation is extremely simple and adaptable. Frequently monitoring the transverse sp[...]![]()
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Dobado González, Antonio ; Bargueño, P. ; Gonzalo Fonrodona, Isabel | EPL Association, European Physical Society | 2008-04We examine the effect of cold dark matter on the discrimination between the two enantiomers of a chiral molecule. We estimate the energy difference between the two enantiomers due to the interaction between fermionic WIMPs (weak interacting mass[...]![]()
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Detection of parity violation in chiral molecules by external tuning of electroweak optical activity
Bargueño, Pedro ; Gonzalo Fonrodona, Isabel ; Pérez de Tudela, Ricardo | American Physical Society | 2009-07-23A proposal is made to measure the parity-violating energy difference between enantiomers of chiral molecules by modifying the dynamics of the two-state system using an external chiral field, in particular, circularly polarized light. The intrins[...]![]()
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We analyze theoretically the entanglement between two non-planar and light identical molecules (e.g., pyramidal NH3) that present inversion doubling due to the internal spatial inversion of their nuclear conformations by tunneling. The peculiari[...]![]()
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Martínez Matos, Óscar ; Alieva Krasheninnikova, Tatiana ; Canabal Boutureira, Héctor ; Navarrete Fernández, María de la Cruz ; Gonzalo Fonrodona, Isabel ; Herrera Fernández, José María ; Irigoyen Irigoyen, Maite ; Luis Aina, Alfredo ; Piquero Sanz, Gemma ; Rodrigo Martín Romo, José Augusto ; Sánchez Brea, Luis Miguel ; Sánchez Martín, José Antonio ; Serna Galán, Julio ; Tercero Gómez, José Luis ; Torcal Milla, Francisco José ; Vilas Prieto, José Luis ; Weigand Talavera, Rosa | 2015Se propone un cambio en la metodología docente de la asignatura Laboratorio de Física III del Grado en Física, para hacerla más dinámica y potenciar la participación e iniciativas de los estudiantes, adecuándola al espíritu de Bolonia![]()
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Gómez Calderón, Óscar ; Cabrera Granado, Eduardo ; Antón Revilla, Miguel Ángel ; Gonzalo Fonrodona, Isabel ; Carreño Sánchez, Fernando ; Guerra, J. M. | American Physical Society | 2004-04-23Phase domains and phase solitons in two-level amplifying media damped by a squeezed vacuum are predicted for the first time. Two different types of pattern formation are found depending on the relative value of the cavity detuning to the squeeze[...]![]()
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Antón Revilla, Miguel Ángel ; Arrieta Yáñez, Francisco ; Cabrera Granado, Eduardo ; Carreño Sánchez, Fernando ; Ezquerro Rodríguez, José Miguel ; Gómez Calderón, Óscar ; Gonzalo Fonrodona, Isabel ; Guerra Pérez, José Manuel ; Melle Hernández, Sonia ; Soler Rus, Miguel Odín ; Sánchez Balmaseda, Margarita María ; Weigand Talavera, Rosa María | Sociedad Española de Óptica | 2011En este trabajo presentamos las líneas de investigación del Grupo de Física del Láser, Óptica Cuántica y Óptica No Lineal de la UCM. La investigación comprende trabajos experimentales y teóricos en el desarrollo de prototipos de láser, análisi[...]![]()
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A fully quantum theory of the Aharonov-Bohm effect is presented. It is based on the interaction, mediated by virtual photon exchange, between the traveling electron and the atomic magnetic dipoles of an infinitely long permanent magnet. The calc[...]![]()
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Bujarrabal, V. ; Gonzalo Fonrodona, Isabel ; Salinas, F. | American Astronomical Society | 1984-10-01Along with the very frequent occurrence of every CH 9 cm line inversion, CH radio observations also show the existence of antother almost universal characteristic of thes lines’s excitation: the overexcitation of the satellite F = 0? 1 line. Att[...]![]()
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Gómez Calderón, Óscar ; Melle, Sonia ; Gonzalo Fonrodona, Isabel | American Physical Society | 2002-02We study a single-mode laser system, whose active medium consists of molecules with a large difference between excited and ground electrical permanent-dipole moments, In this case, the Maxwell-Bloch equations Lire further coupled by nonlinear te[...]![]()
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Porras, Miguel A. ; Gonzalo Fonrodona, Isabel ; Luis Aina, Alfredo | American Physical Society | 2016-04-07We show that quantum Zeno dynamics can be mimicked by the isolated evolution of an unobserved system in an effective potential. Monitoring frequently whether a particle remains in a region of space leads to the same wave-packet dynamics as placi[...]![]()
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Porras, Miguel A. ; Gonzalo Fonrodona, Isabel ; Mondello, Alessia | American Physical Society | 2003-06-17We study the group velocity of pulsed light beams in vacuum. Gouy's phase associated with the diffraction of transversally limited pulses can create a strong anomalous dispersion in vacuum leading to highly superluminal and negative group veloci[...]![]()
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Bargueño, Pedro ; Miret Artés, Salvador ; Gonzalo Fonrodona, Isabel | Royal Society of Chemistry | 2011In order to explore parity violating effects in chiral molecules, of interest in some models of evolution towards homochirality, quantum stochastic resonance (QSR) is studied for the population difference between the two enantiomers of a chiral [...]![]()
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Porras, Miguel A. ; Luis Aina, Alfredo ; Gonzalo Fonrodona, Isabel | American Physical Society | 2014Although the quantum Zeno effect takes its name from Zeno’s arrow paradox, the effect of frequently observing the position of a freely moving particle on its motion has not been analyzed in detail in the frame of standard quantum mechanics. We s[...]![]()
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Radiative corrections using third-order perturbation theory are considered in a theoretical calculation of the Zeeman effect. The corrections have been calculated for the states 2 3^P of helium, and found to be of the same order as other radiati[...]![]()
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Gonzalo Fonrodona, Isabel ; Antón Revilla, Miguel Ángel ; Carreño Sánchez, Fernando ; Gómez Calderón, Óscar | American Physical Society | 2005-09-13The squeezing spectrum of the fluorescent light is investigated for a laser-driven three-level atom of the Lambda configuration when quantum interference of the decay channels is accounted for. We show that when the two atomic transitions contri[...]![]()
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We study the tunnel dynamics of a chiral molecule between its left (L) and right (R) conformations, under the global effect of collisional decoherence together with the effect of a mean-field generated by the environment where an energetic diffe[...]![]()
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Carreño Sánchez, Fernando ; Gómez Calderón, Óscar ; Antón Revilla, Miguel Ángel ; Gonzalo Fonrodona, Isabel | American Physical Society | 2005-06-15We study the dispersion and absorption spectra of a weak probe in a Delta-type three-level atomic system with closely ground sublevels driven by a strong field and damped by a broadband squeezed vacuum. We analyze the interplay between the spont[...]![]()
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This work is the English translation of an extract of the pioneering research on brain dynamics by Justo Gonzalo (1910–1986). This is an article published in Spanish in the scientific journal ‘Trabajos del Instituto Cajal de Investigaciones Biol[...]![]()
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Transverse effects in the laser threshold, originated by electronic-vibrational coupling in the active centers, are analyzed theoretically by means of the semiclassical two-level Maxwell-Bloch equations. A single longitudinal mode is considered.[...]![]()
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Porras, Miguel A. ; Luis Aina, Alfredo ; Gonzalo Fonrodona, Isabel ; Sanz, Ángel S. | American Physical Society | 2011-11-14We analyze a simple and feasible practical scheme displaying Zeno, anti-Zeno, and inverse-Zeno effects in the observation of wave-packet spreading caused by free evolution. The scheme is valid both in spatial diffraction of classical optical wav[...]![]()
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Luis Aina, Alfredo ; Gonzalo Fonrodona, Isabel ; Porras, Miguel A. | American Physical Society | 2013-06-20We describe a version of the Zeno effect where the monitored physical property cannot be represented by a standard operator in the system space and the evolution to be prevented by observation is not unitary. This is the case of quantum-state pu[...]![]()
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We describe an experiment in which the rotation of the polarization of light propagating in an optically active water solution of D-fructose tends to be inhibited by frequent monitoring whether the polarization remains unchanged. This is an exam[...]