BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:La investigación en Enseñanza de la Física y el aprendizaje de los estudiantes DTSTART;VALUE=DATE-TIME:20170720T093000Z DTEND;VALUE=DATE-TIME:20170720T102000Z DTSTAMP;VALUE=DATE-TIME:20260418T224407Z UID:indico-contribution-555-4452@indico.ific.uv.es DESCRIPTION:Speakers: Jenaro Guisasola ()\nEn las últimas décadas\, un n úmero creciente de físicos ha asumido el reto de implementar en el apren dizaje y la enseñanza de la física la misma rigurosidad de investigació n que la aplicada en la investigación tradicional en física. Este compro miso se conoce generalmente como "Investigación en Enseñanza de la Físi ca" . En esta presentación discutiré el impacto de la investigación en la práctica educativa de la enseñanza de la física a nivel universitari o. Voy a mostrar evidencias de diferentes investigaciones que presentan re sultados sobre el impacto positivo de la investigación en la enseñanza y el aprendizaje de la física\, en la comprensión de los estudiantes de l a física. Por último\, presentaré algunos retos y propondré algunas me didas que podrían adoptarse para asegurar el crecimiento y la productivid ad de la Investigación en Enseñanza de la Física.\n\nhttps://indico.ifi c.uv.es/event/2851/contributions/4452/ LOCATION:Santiago de Compostela\, Facultade de Química Aula Magna URL:https://indico.ific.uv.es/event/2851/contributions/4452/ END:VEVENT BEGIN:VEVENT SUMMARY:Quantum computing with silicon transistors DTSTART;VALUE=DATE-TIME:20170720T084000Z DTEND;VALUE=DATE-TIME:20170720T090000Z DTSTAMP;VALUE=DATE-TIME:20260418T224407Z UID:indico-contribution-555-4392@indico.ific.uv.es DESCRIPTION:Speakers: Miguel Fernando Gonzalez Zalba (Hitachi Cambridge La boratory)\nIntroduction\n\nThe silicon metal-oxide-semiconductor transisto r is the workhorse of the microelectronics industry. It is the building bl ock of all major electronic information processing components such as micr oprocessors\, memory chips and telecommunications microcircuits. By shrink ing its size generation after generation the computational performance\, m emory capacity and information processing speed has increased relentlessly . However\, the process of miniaturization is bound to reach its fundament al physical limits in the next decades.\n\nNew computing paradigms are hen ce paramount to overcome the technical limitations of silicon technology a nd continue increasing the computation performance beyond simple multi-cor e approaches. Quantum computing – based on computing with interacting tw o-level quantum systems or qubits- offers exponential speed-up over severa l classical algorithms [1-3] and it is hence one of the most sought-after alternatives to conventional computing. However\, finding the optimal phys ical system to process quantum information and scale it up to the large nu mber of qubits necessary to run the aforementioned algorithms remains a ma jor challenge. Paradoxically\, we are now starting to see that silicon tec hnology itself could offer an optimal platform on which to fabricate spin- based scalable quantum circuits: Quantum computing with silicon transistor s fully profits from the most established industrial technology to fabrica te large scale integrated circuits while facilitating the integration with conventional electronics for fast data processing of the binary outputs o f the quantum processor\; all this offering long electron spin coherence t imes [4]. \n\nResults\n\nIn this talk\, we present a series of results on fully depleted silicon-on-insulator (FD-SOI) transistors at miliKelvin tem peratures that demonstrate this technology can provide a platform for high -integration spin qubit architectures. Firstly\, we report the formation o f a tunnel coupled double quantum dot (DQD) at the top-most edges of the t ransistor\, as the building block for implementing charge and spin qubits [5\,6]. By using split-gate electrodes we independently control the charge occupation of the system down to the few-electron limit. Measurements of the charge and spin state of the system are done via in-situ dispersive ga te-based radio-frequency reflectometry [7-9]\, see Fig 1. This technique\ , that interfaces the quantum system to a high-frequency electrical resona tor\, removes the need for external charge sensors and provides a compact and sensitive way (δq=37 µe/√Hz) to detect charge motion\, favouring t he prospects for scalability. Furthermore\, we show coherent control the c harge occupancy of the DQD in the single-electron regime using microwave e xcitation. We perform Landau-Zener-Stückelberg interferometry experiments to assess the charge coherence time of the system\, T2*=250 ps [10]. \n\ nFinally\, we present a set of experiments that demonstrate the potential to scale FD-SOI technology to a large number of qubits and interface them naturally with conventional binary FD-SOI transistors: We present a quadru ple-gate transistor on FD-SOI that can be reconfigured to host up to four quantum dots in silicon [11] showing that this approach can be readily ext ended to fabricate a 1D line of interacting qubits. Furthermore\, we show a monolithic approach to fabricate hybrid classical-quantum circuits in wh ich the qubit readout is controlled by the digital state of the convention al transistor\, demonstrating the first steps towards time-based multiplex ing qubit readout. \n \nOverall\, our results open up the possibility to o perate compact transistor technology as electron spin qubits and demonstra te the potential of split-gate FD-SOI technology as a hardware for compact and scalable hybrid quantum computing architectures.\n\nAcknowledgments\n \nThis research is supported by the European Community’s Seventh Framewo rk Programme (FP7/2007-2013) through Grant Agreement No. 318397 (http://ww w.tolop.eu) and Horizon 2020 through Grant Agreement No. 688539 (http://mo s-quito.eu). M. F. Gonzalez-Zalba is supported by a Research Fellowship at Hughes Hall College\, University of Cambridge.\nReferences\n\n[1] P.W. Sh or\, SIAM Journal on Computing 26 (1997) 1484.\n[2] L. K. Grover\, Phys. R ev. Lett 79 (1997) 325.\n[3] D. Poulin\, M. B. Hastings\, D. Wecker\, N. W iebe\, A .C. Doherty\, M. Troyer\, Quantum Inf. & Comput. 15 (2015) 361.\n [4] M. Veldhorst\, C. H. Yang\, J. C. Hwang\, W. Huang\, J. P Dehollain\, J. T. Muhonen\, A.S. Dzurak\, Nature\, 526 (2015)\, 410. \n[5] A. C. Betz\ , S. Barraud\, Q. Wilmart\, B. Placais\, X. Jehl\, M. Sanquer\, and M. F. Gonzalez-Zalba\, App. Phys. Lett. 104 (2014) 043106.\n[6] A. C. Betz\, R. Wacquez\, M. Vinet\, X. Jehl\, A. L. Saraiva\, M. Sanquer\, A. J. Ferguso n\, M. F. Gonzalez-Zalba M. F.\, Nano Lett. 15 (2015) 4622.\n[7] M. F. Gon zalez-Zalba\, A. J. Ferguson\, S. Barraud\, A. C. Betz\, Nat. Commun. 6 (2 015) 6084.\n[8] M. Urdampilleta\, A. Chatterjee\, C. C. Lo\, T. Kobayashi\ , J. Mansir\, S. Barraud\, A. C. Betz\, S. Rogge\, M. F. Gonzalez-Zalba\, J .J. L. Morton\, Phys. Rev. X 5 (2015) 031024.\n[9] R. Mizuta\, R. Otxoa \, A. C. Betz\, M. F. Gonzalez-Zalba\, Phys. Rev. B 95 (2017) 045414\n[10] M. F. Gonzalez-Zalba\, S. N. Shevchenko\, S. Barraud\, J. R. Johansson\, A. J. Ferguson\, F. Nori\, A. C. Betz\, Nano Lett. 16 1614 (2016). \n[11] A. C. Betz\, M. L. V. Tagliaferri\, M. Vine t\, M. Brostrom\, M. Sanquer\, A. J. Ferguson\, M. F. Gonzalez-Zalba\, A pp. Phys. Lett. 108 (2016) 203108.\n\nhttps://indico.ific.uv.es/event/2851 /contributions/4392/ LOCATION:Santiago de Compostela\, Facultade de Química Aula Magna URL:https://indico.ific.uv.es/event/2851/contributions/4392/ END:VEVENT BEGIN:VEVENT SUMMARY:Non-equilibrium thermodynamics at the nanoscale with the virtual m icroscope DTSTART;VALUE=DATE-TIME:20170720T102000Z DTEND;VALUE=DATE-TIME:20170720T111000Z DTSTAMP;VALUE=DATE-TIME:20260418T224407Z UID:indico-contribution-555-4275@indico.ific.uv.es DESCRIPTION:Speakers: Fernando Bresme ()\nThermal gradients and electromag netic fields are responsible for a wide range of nonequilibrium physical e ffects (e.g. Soret\, Seebeck\, Peltier effects)\, which can be exploited i n\nenergy conversion (thermoelectrics)\, analytical devices\, molecular an d nanoparticle transport as well as colloidal assembly. We have investigat ed the non-equilibrium response of molecular fluids and particles to tempe rature gradients and magnetic fields. The combination of computer simulati ons and non-equilibrium thermodynamic theories allow us to elucidate the p hysical behaviour of complex fluids under these external gradients\, showi ng it is richer than\nanticipated. I will discuss the prospects of non-equ ilibrium simulation approaches to uncover novel non-equilibrium coupling e ffects that arise from the interaction of molecular degrees of freedom wit h thermal gradients\, and to predict colloidal assembly phenomena induced by external fields\n\nhttps://indico.ific.uv.es/event/2851/contributions/4 275/ LOCATION:Santiago de Compostela\, Facultade de Química Aula Magna URL:https://indico.ific.uv.es/event/2851/contributions/4275/ END:VEVENT BEGIN:VEVENT SUMMARY:Physics for a better vision DTSTART;VALUE=DATE-TIME:20170720T075000Z DTEND;VALUE=DATE-TIME:20170720T084000Z DTSTAMP;VALUE=DATE-TIME:20260418T224407Z UID:indico-contribution-555-4274@indico.ific.uv.es DESCRIPTION:Speakers: Pablo Artal Soriano ()\nThe human eye is a simple op tical system\, but very well adapted to the special requirements of our vi sual system. A better understanding of the optical physics properties\nof the eye allowed to develop new technologies to improve vision in many peop le. In this talk\, I will revise the main optical properties of the eye an d different experiments we\ndeveloped during the last decades in my labora tory. In particular\, based in the use of adaptive optics to manipulate li ght wavefronts in the eye.\nI will also present several recent results ran ging from the nature of the lens movements\, the development of new types of intraocular lenses to new opto-electronic instruments for\nthe correcti on of cataracts and presbyopia.\n\nhttps://indico.ific.uv.es/event/2851/co ntributions/4274/ LOCATION:Santiago de Compostela\, Facultade de Química Aula Magna URL:https://indico.ific.uv.es/event/2851/contributions/4274/ END:VEVENT BEGIN:VEVENT SUMMARY:Collective Social Phenomena: simple models and/or Big Data DTSTART;VALUE=DATE-TIME:20170720T070000Z DTEND;VALUE=DATE-TIME:20170720T075000Z DTSTAMP;VALUE=DATE-TIME:20260418T224407Z UID:indico-contribution-555-4271@indico.ific.uv.es DESCRIPTION:Speakers: Maxi San Miguel ()\nI will give a short overview of problems of collective social phenomena being considered from a physicist perspective and I will discuss the contribution of this perspective to the new Computational Social Sciences. I will address the\nquestion of what c an be learnt from simple models in the middle of the data deluge and illus trate the answer to this question in two contexts:\n i) Voter model and co nsensus\, stochastic effects\, electoral processes\, fragmentation\ntransi tions in complex networks and community structure in on-line games.\nii) S patial segregation phenomena: Schelling´s model\, ghettos and land use.\n \nhttps://indico.ific.uv.es/event/2851/contributions/4271/ LOCATION:Santiago de Compostela\, Facultade de Química Aula Magna URL:https://indico.ific.uv.es/event/2851/contributions/4271/ END:VEVENT BEGIN:VEVENT SUMMARY:Novel light tools to explore the nanoworld: generation of extreme- ultraviolet/soft x-ray singular beams DTSTART;VALUE=DATE-TIME:20170720T111000Z DTEND;VALUE=DATE-TIME:20170720T113000Z DTSTAMP;VALUE=DATE-TIME:20260418T224407Z UID:indico-contribution-555-4262@indico.ific.uv.es DESCRIPTION:Speakers: Carlos Hernandez-Garcia (University of Salamanca)\nH arnessing topological light properties paves the way towards new degrees o f freedom for the observation and control of nature at extreme spatio-temp oral scales. The specific spatio-temporal properties of vortex and vector beams present unique applications in fields such as quantum optics\, micro manipulation\, super-resolution imaging\, optical communications and spect roscopy. In this contribution we report our theoretical and experimental a chievements in the generation of extreme-ultraviolet (EUV)/soft x-ray vort ices and vector beams through the nonlinear process of high harmonic gener ation. Our findings report the generation\, for the first time\, of these singular beams in the EUV domain\, with potential extension to the soft x- rays\, opening the route for the next generation of time.resolved x-ray ap plications at the nanometer scale.\n\nhttps://indico.ific.uv.es/event/2851 /contributions/4262/ LOCATION:Santiago de Compostela\, Facultade de Química Aula Magna URL:https://indico.ific.uv.es/event/2851/contributions/4262/ END:VEVENT END:VCALENDAR