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  • Publication details - IFISC
    thermovoltage and thermocurrent that are strongly nonlinear in the applied thermal bias We show that most of the observed nonlinear effects can be understood in terms of a renormalization of the quantum dot energy levels as a function of applied thermal bias and provide a theoretical model of the nonlinear thermovoltage taking renormalization into account Furthermore we propose a theory that explains a possible source of the observed pronounced renormalization

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2453 (2016-02-15)
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  • Publication details - IFISC
    the case where the spin current is injected by an external source and when it is generated by the voltage bias Due to the presence of ferromagnetic contacts a static exchange field is produced that eventually destroys the Kondo correlations We find that such a field can be compensated by an appropriated combination of the spin dependent chemical potentials leading to the restoration of the Kondo resonance In this respect

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2503 (2016-02-15)
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  • Publication details - IFISC
    the quantum well E0 and with the temperature In the second part of this Master thesis a spin splitting in the level is included We find a splitting in the thermopower maximum and the possibility to obtain completely polarized spin currents by modifying the system parameters Finally we study the spin thermopower due to the generation of spin biases in response to thermal gradients Our results show two peaks in

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2462 (2016-02-15)
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  • Publication details - IFISC
    information is available through web navigation One of the new sources of information are social networks and they provide large datasets to be studied In this context we are using geolocatzed tweets as a source of information for mobility patterns Data retrieval is achieved through public APIs and smart users selection Besides efficient data storage and fast access to the data is a challenging task for which we rely on

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2516 (2016-02-15)
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  • Publication details - IFISC
    to a distributed delay in the interval of the modulation and the obtained distribution depends on the type of the modulation In our analysis we use a simple generic normal form of an unstable focus and investigate the effects of phase dependent coupling and the influence of the control loop latency on the controllability In addition we have explored the influence of the modulation of the delays in multiple delay

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2448 (2016-02-15)
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  • Publication details - IFISC
    Contacte Publicacions Semiconductor laser dynamics under polarized rotated optical delay feedback and frequency detuning Bueno Julián Supervisors Mirasso Claudio R Soriano Miguel C Master Thesis 2013 Fitxers masterthesis JBueno pdf 3823127 Bytes 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 bases

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2452 (2016-02-15)
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  • Publication details - IFISC
    and post processing using simple and robust procedures We employ the chaotic output of a semiconductor laser subjected to polarization rotated feedback We show that not only dynamics affect the randomness of the bits but also the digitization conditions and postprocessing must be taken into account for successful random bit generation Applying these general guidelines extensible to other chaos based systems we can define the optimal conditions for random bit

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2445 (2016-02-15)
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  • Publication details - IFISC
    experimentally and numerically study the dynamics of semiconductor ring lasers that are subjected to long delay and moderate self feedback Through varying the pump current or the feedback strength or both we study the appearance and parameter dependence of low frequency fluctuations in these systems In particular we observe different routes to the building up of the initial power amplitude DOI 10 1109 JQE 2013 2272477 Fitxers MashalLFFinSRL JQE13 pdf

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2444 (2016-02-15)
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