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Dipòsit Digital de Documents de la UAB 6 registres trobats  La cerca s'ha fet en 0.01 segons. 
1.
24 p, 604.6 KB Quantum theory in finite dimension cannot explain every general process with finite memory / Fanizza, Marco (Universitat Autònoma de Barcelona. Departament de Física) ; Lumbreras, Josep (National University of Singapore. Centre for Quantum Technologies) ; Winter, Andreas (Universitat Autònoma de Barcelona. Departament de Física)
Arguably, the largest class of stochastic processes generated by means of a finite memory consists of those that are sequences of observations produced by sequential measurements in a suitable generalized probabilistic theory (GPT). [...]
2024 - 10.1007/s00220-023-04913-4
Communications in mathematical physics, Vol. 405, issue 2 (February 2024) , art. 50  
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2.
9 p, 1.5 MB Depletion of two-level systems in highly stable glasses with different molecular ordering / Moratalla Martín, Manuel (Universidad Autónoma de Madrid) ; Rodríguez López, Marta (Universitat Autònoma de Barcelona. Departament de Física) ; Rodríguez Tinoco, Cristian (Institut Català de Nanociència i Nanotecnologia) ; Rodríguez-Viejo, Javier (Institut Català de Nanociència i Nanotecnologia) ; Jiménez Riobóo, Rafael J. (Instituto de Ciencia de Materiales de Madrid) ; Ramos, Miguel Ángel (Universidad Autónoma de Madrid. Departamento de Física de la Materia Condensada)
Recent findings of structural glasses with extremely high kinetic and thermodynamic stability have attracted much attention. The question has been raised as to whether the well-known, low-temperature "glassy anomalies" (attributed to the presence of two-level systems [TLS] and the "boson peak") persist or not in these ultrastable glasses of much lower configurational entropy. [...]
2023 - 10.1038/s42005-023-01398-4
Communications Physics, Vol. 6 (September 2023) , art. 274  
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3.
24 p, 429.7 KB Complex Dirac Structures : Invariants and Local Structure / Aguero, Dan (Universidade Federal do Rio de Janeiro) ; Rubio, Roberto (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
We study complex Dirac structures, that is, Dirac structures in the complexified generalized tangent bundle. These include presymplectic foliations, transverse holomorphic structures, CR-related geometries and generalized complex structures. [...]
2022 - 10.1007/s00220-022-04471-1
Communications in mathematical physics, Vol. 396 (September 2022) , p. 623-646  
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4.
7 p, 1.3 MB Terahertz displacive excitation of a coherent Raman-active phonon in V2O3 / Giorgianni, Flavio (Paul Scherrer Institut (Suïssa)) ; Udina, Mattia (Università degli studi di Roma "La Sapienza". Department of Physics) ; Cea, Tommaso (IMDEA Nanoscience) ; Paris, Eugenio (Paul Scherrer Institut (Suïssa)) ; Caputo, Marco (Photon Science Division. Paul Scherrer Institute) ; Radovic, Milan (Photon Science Division. Paul Scherrer Institute) ; Boie, Larissa (ETH Zurich. Physics Department) ; Sakai, Joe (Institut Català de Nanociència i Nanotecnologia) ; Schneider, Christof W. (Paul Scherrer Institut (Suïssa)) ; Johnson, Steven Lee (ETH Zurich. Physics Department)
Nonlinear processes involving frequency-mixing of light fields set the basis for ultrafast coherent spectroscopy of collective modes in solids. In certain semimetals and semiconductors, generation of coherent phonon modes can occur by a displacive force on the lattice at the difference-frequency mixing of a laser pulse excitation on the electronic system. [...]
2022 - 10.1038/s42005-022-00882-7
Communications Physics, Vol. 5 (2022) , art. 103  
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5.
17 p, 380.6 KB TB2J : a python package for computing magnetic interaction parameters / He, Xu (Institut Català de Nanociència i Nanotecnologia) ; Helbig, Nicole (Université de Liège. Q-Mat) ; Verstraete, Matthieu J. (Institut Català de Nanociència i Nanotecnologia) ; Bousquet, Eric (Université de Liège. Q-Mat)
We present TB2J, a Python package for the automatic computation of magnetic interactions, including exchange and Dzyaloshinskii-Moriya, between atoms of magnetic crystals from the results of density functional calculations. [...]
2021 - 10.1016/j.cpc.2021.107938
Computer Physics Communications, Vol. 264 (July 2021) , art. 107938  
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6.
11 p, 1.0 MB A method to identify nuclear reactions registered in ionographic detectors / Tomàs Ondiviela, Miquel, 1936-2011
Article de Miquel Tomàs Ondiviela, M. Ortega, Aleix Vidal-Quadras, V. Gandia (Universitat de Barcelona), C. Jacquot (CERN) "A method to identify nuclear reactions registered in ionographic detectors". [...]
1976
Computer Physics Communications, Vol 11(1976), p.287-297  
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