Browsing Facultad de Matemática, Astronomía, Física y Computación by Author "Osán, Tristán Martín"

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    • Effects of magnetic field gradients on the aggregation dynamics of colloidal magnetic nanoparticles 

      Heinrich, Dirk; Goñi, Alejandro R.; Osán, Tristán Martín; Cerioni, Lucas Matías Ceferino; Smessaert, Anton; Klapp, Sabine H. L.; Faraudo, Jordi; Pusiol, Daniel José; Thomsen, Christian (2015)
      We have used low-field 1H nuclear-magnetic resonance (NMR) spectroscopy and molecular dynamics (MD) to investigate the aggregation dynamics of magnetic particles in ionic ferrofluids (IFFs) in the presence of magnetic field ...

    • Geometric approach to extend Landau-Pollak uncertainty relations for positive operator-valued measures 

      Bosyk, Gustavo Martín; Zozor, Steeve; Portesi, Mariela Adelina; Osán, Tristán Martín; Lamberti, Pedro Walter (2014)
      We provide a twofold extension of Landau-Pollak uncertainty relations for mixed quantum states and for positive operator-valued measures, by recourse to geometric considerations. The generalization is based on metrics ...

    • Geometric formulation of the uncertainty principle 

      Bosyk, Gustavo Martín; Osán, Tristán Martín; Lamberti, Pedro Walter; Portesi, Mariela (2014)
      A geometric approach to formulate the uncertainty principle between quantum observables acting on an N-dimensional Hilbert space is proposed. We consider the fidelity between a density operator associated with a quantum ...

    • Problem of quantifying quantum correlations with non-commutative discord 

      Majtey, Ana Paula; Bussandri, Diego Gastón; Osán, Tristán Martín; Lamberti, Pedro Walter; Valdés-Hernández, Andrea (2017)
      In this work we analyze a non-commutativity measure of quantum correlations recently proposed by Y. Guo [Sci. Rep. 6, 25241 (2016)]. By resorting to a systematic survey of a two-qubit system, we detected an undesirable ...