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  • Publication details - IFISC
    used expression for the partition function of a system of distinguishable particles leads to huge fluctuations of the number of particles in the grand canonical ensemble and consequently to non equivalence of statistical ensembles We will see how a new proposed definition for the entropy of distinguishable particles by Swendsen J Stat Phys 107 1143 2002 solves the problem and restores ensemble equivalence We also show that the new proposal

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2699 (2016-02-15)
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  • Publication details - IFISC
    are amplified up to a saturation level which depends on the transmission rate and despite MEMS being nonlinear the sinusoidal shape is well preserved if the number of MEMS is not too large However increasing the number of MEMS there is an instability that leads to chaotic behavior and which is triggered by the amplification of the harmonics generated by the nonlinearities We also show that for stochastic input signals

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2698 (2016-02-15)
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  • Publication details - IFISC
    allows the system to exhibit excitability and oscillations Here we build on this work and present a detailed bifurcation analysis of the various dynamical instabilities that result from the competition between a pulling force generated by the drift and a pinning of the solitons to spatial defects We show that oscillatory and excitable dynamics of dissipative solitons find their origin in multiple codimension two bifurcation points Moreover we demonstrate that

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2670 (2016-02-15)
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  • Publication details - IFISC
    time since a state has changed When the system has a preference to adopt older states the system orders quickly due to the dominance of old states When preference for new states prevails the system can show coexistence of states or synchronized collective behavior resulting in long ordering times In this case the magnetization of the system oscillates around zero Finally we discuss a potential application in social systems Identificador

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2695 (2016-02-15)
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  • Publication details - IFISC
    imply information mass or energy exchange However the specific connection between oceanic or atmospheric flows and the climate network s structure is still unclear We propose a theoretical approach for verifying relations between the correlation matrix and the climate network measures generalizing previous studies and overcoming the restriction to stationary flows Our methods are developed for correlations of a scalar quantity temperature for example which satisfies an advection diffusion dynamics

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2700 (2016-02-15)
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  • Publication details - IFISC
    with the distance The mathematical expression of this law resembles Newton s law of gravity which explains its name Another popular approach is inspired by the theory of intervening opportunities and it has been concreted into the so called radiation models Individuals are supposed to travel until they find a job opportunity so the population and jobs spatial distributions naturally lead to a trip flow network In this paper we perform a thorough comparison between the gravity and the radiation approaches in their ability at estimating commuting flows We test the gravity and the radiation laws against empirical trip data at different scales and coming from different countries Different versions of the gravity and the radiation laws are used to estimate the probability that an individual has to commute from one unit to another called trip distribution law Based on these probability distribution the commuting networks are simulated with different trip distribution models We show that the gravity law performs better than the radiation law to estimate the commuting flows to preserve the structure of the network and to fit the commuting distance distribution although it fails at predicting commuting flows at large distances Finally we show that both approaches

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2693 (2016-02-15)
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  • Publication details - IFISC
    Publicacions Flexible magnetic filaments under the influence of external magnetic fields in the limit of infinite dilution Cerdà Joan J Sánchez Pedro A Lusebrink Daniel Kantorovich Sofia Sintes Tomas Nanoscale submitted 2016 Fitxers Tornar a la llista de publicacions Cerca publicacions Conté la paraula es Operador AND OR NOT Paraules adicionals Línia d investigació Totes Complex Quantum Optics Fluids Biosystems Social Outreach Cerca avançada Xerrades i Presentacions Cercar a les

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2687 (2016-02-15)
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  • Publication details - IFISC
    flow and an external magnetic field We found that in the presence of flow and at zero field the filament undergoes coiling stretching transi tions These transitions are strongly inhibited by the external magnetic field that is able to stabilise the filament with a well defined degree of alignment that depends on the balance between hydro dynamic and magnetic torques We found the initial position to have an unexpectedly long

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2686 (2016-02-15)
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