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Dipòsit Digital de Documents de la UAB 175 registres trobats  1 - 10següentfinal  anar al registre: La cerca s'ha fet en 0.01 segons. 
1.
20 p, 971.1 KB Planar central configurations of some restricted (4 + 1)-body problems / Corbera Subirana, Montserrat (Universitat de Vic - Universitat Central de Catalunya. Departament d'Enginyeries) ; Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Valls, Clàudia 1973- (Universidade de Lisboa. Instituto Superior Técnico. Departamento de Matemàtica)
We start with the 13 central configurations of the restricted (4 + 1) body problem having four primaries with equal masses at the vertices of a square. Then, we describe the evolution of these central configurations when some of the masses of the four primaries tend to zero and the remainder ones keep constant. [...]
2022 - 10.1063/5.0091642
Journal of Mathematical Physics, Vol. 63, Issue 12 (December 2022) , art. 122901  
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2.
Polynomial differential systems with hyperbolic limit cycles / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Valls, Clàudia 1973- (Universidade de Lisboa. Instituto Superior Técnico. Departamento de Matemàtica)
One of the main problems of the qualitative theory of the planar differential equations is the study their limit cycles. In this paper given an algebraic curve of degree n we characterize the planar polynomial differential systems of degree greater or equal than n which admit the ovals of the algebraic curve as hyperbolic limit cycles.
2023 - 10.1016/j.geomphys.2023.104983
Journal of geometry and physics, Vol. 194 (December 2023) , art. 104983  
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3.
10 p, 3.1 MB Electric field control of magnetization reversal in FeGa/PMN-PT thin films / Pradhan, Gajanan (University of Turin. Chemistry Department) ; Celegato, Federica (Istituto Nazionale di Ricerca Metrologica) ; Magni, Alessandro (Istituto Nazionale di Ricerca Metrologica) ; Coisson, Marco (Istituto Nazionale di Ricerca Metrologica) ; Barrera, Gabriele (Istituto Nazionale di Ricerca Metrologica) ; Rizzi, Paola (University of Turin. Chemistry Department) ; Tiberto, Paola (Istituto Nazionale di Ricerca Metrologica)
Artificial magnetoelectric materials possess huge potential to be utilized in the development of energy efficient spintronic devices. In the past decade, the search for a good ferromagnetic/ferroelectric combination having the ability to create high magnetoelectric coupling, created new insights and also new challenges. [...]
2024 - 10.1088/2515-7639/ad1e13
Journal of Physics: Materials, Vol. 7, Issue 1 (January 2024) , art. 015016  
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4.
14 p, 4.2 MB Continuity bounds on observational entropy and measured relative entropies / Schindler, Joseph (Universitat Autònoma de Barcelona. Departament de Física) ; Winter, Andreas (Universitat Autònoma de Barcelona. Departament de Física)
We derive a measurement-independent asymptotic continuity bound on the observational entropy for general positive operator valued measures measurements, making essential use of its property of bounded concavity. [...]
2023 - 10.1063/5.0147294
Journal of Mathematical Physics, Vol. 64, Issue 9 (September 2023) , art. 92201  
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5.
12 p, 2.5 MB Toward machine learning for microscopic mechanisms : A formula search for crystal structure stability based on atomic properties / Gajera, Udaykumar (University of Turin. Chemistry Department) ; Storchi, Loriano (Università Degli Studi G. d'Annunzio. Dipartimento di Farmacia) ; Amoroso, Danila (Université de Liège. NanoMat/Q-mat/CESAM) ; Delodovici, Francesco (Université Paris-Saclay. CentraleSupélec) ; Picozzi, Silvia (Consiglio Nazionale Delle Ricerche)
Machine-learning techniques are revolutionizing the way to perform efficient materials modeling. We here propose a combinatorial machine-learning approach to obtain physical formulas based on simple and easily accessible ingredients, such as atomic properties. [...]
2022 - 10.1063/5.0088177
Journal of applied physics, Vol. 131, Issue 21 (June 2022) , art. 215703  
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6.
7 p, 3.9 MB Zero-Hopf bifurcation in the Chua's circuit / Ginoux, Jean-Marc (Université de Toulon. Laboratoire LSIS) ; Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
An equilibrium point of a differential system in R 3 such that the eigenvalues of the Jacobian matrix of the system at the equilibrium are 0 and ±ωi with ω > 0 is called a zero-Hopf equilibrium point. [...]
2023 - 10.1063/5.0137020
Journal of Mathematical Physics, Vol. 64, Issue 7 (July 2023) , art. 72701  
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7.
14 p, 731.4 KB Assessment of large critical electric field in ultra-wide bandgap p-type spinel ZnGa2O4 / Chi, Zeyu (Université Paris-Saclay. Groupe d'Etude de la Matière Condensée) ; Tchelidze, Tamar (Ivane Javakhishvili Tbilisi State University. Department of Physics) ; Sartel, Corinne (Université Paris-Saclay. Groupe d'Etude de la Matière Condensée) ; Gamsakhurdashvili, Tsotne (Ivane Javakhishvili Tbilisi State University. Department of Physics) ; Madaci, Ismail (Université Paris-Saclay. Groupe d'Etude de la Matière Condensée) ; Yamano, Hayate (Danube University Krems. Department for Integrated Sensor Systems) ; Sallet, Vincent (Université Paris-Saclay. Groupe d'Etude de la Matière Condensée) ; Dumont, Yves (Université Paris-Saclay. Groupe d'Etude de la Matière Condensée) ; Perez-Tomas, Amador (Institut Català de Nanociència i Nanotecnologia) ; Medjdoub, Farid (Centre national de la recherche scientifique (França). Institut d'Electronique, de Microélectronique et de Nanotechnologie) ; Chikoidze, Ekaterine (Université Paris-Saclay. Groupe d'Etude de la Matière Condensée)
The spinel zinc gallate ZnGaO stands out among the emerging ultra-wide bandgap (∼5 eV) semiconductors as the ternary complex oxide with the widest gap where bipolar conductivity has been demonstrated. [...]
2023 - 10.1088/1361-6463/acbb14
Journal of Physics D: Applied Physics, Vol. 56, núm. 10 (March 2023) , art. 105102  
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8.
18 p, 2.5 MB Anion ordering transition and Fermi surface electron-hole instabilities in the (TMTSF)2ClO4and (TMTSF)2NO3Bechgaard salts analyzed through the first-principles Lindhard response function / Guster, Bogdan (Institut Català de Nanociència i Nanotecnologia) ; Pruneda, Miguel (Institut Català de Nanociència i Nanotecnologia) ; Ordejon, Pablo (Institut Català de Nanociència i Nanotecnologia) ; Canadell Casanova, Enric 1950- (Institut de Ciència de Materials de Barcelona) ; Pouget, Jean-Paul (Université Paris-Sud. Laboratoire de Physique des Solides)
The first-principles electron-hole Lindhard response function has been calculated and analyzed in detail for two (TMTSF)2 X (X = ClO4 and NO3) Bechgaard salts undergoing different anion-ordering (AO) transitions. [...]
2021 - 10.1088/1361-648X/abc406
Journal of Physics Condensed Matter, Vol. 33, issue 8 (Feb. 2021) , art. 85705  
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9.
14 p, 7.0 MB Fermi surface electron-hole instability of the (TMTSF)2PF6 Bechgaard salt revealed by the first-principles Lindhard response function / Guster, Bogdan (Institut Català de Nanociència i Nanotecnologia) ; Pruneda, Miguel (Institut Català de Nanociència i Nanotecnologia) ; Ordejon, Pablo (Institut Català de Nanociència i Nanotecnologia) ; Canadell Casanova, Enric 1950- (Institut de Ciència de Materials de Barcelona) ; Pouget, Jean-Paul (Laboratoire de Physique des Solides CNRS)
We report the first-principles DFT calculation of the electron-hole Lindhard response function of the (TMTSF)PF Bechgaard salt using the real triclinic low-temperature structure. The Lindhard response is found to change considerably with temperature. [...]
2020 - 10.1088/1361-648X/ab8522
Journal of Physics Condensed Matter, Vol. 32, Num. 34 (May 2020) , art. 345701  
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10.
12 p, 296.8 KB A consistent description of rho0 -> pi pi gamma decays including sigma(500) meson effects / Bramon Planas, Albert (Universitat Autònoma de Barcelona. Departament de Física) ; Escribano, Rafel (Institut de Física d'Altes Energies)
A consistent description of σ(500) meson effects in ρ0→π0π0γ and π+π−γ decays is proposed in terms of reasonably simple amplitudes which reproduce the expected chiral-loop behaviour for large mσ values. [...]
2004 - 10.1088/1126-6708/2004/02/048
Journal of high energy physics, Vol. 2004 (Feb. 2004), art. 048  
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