February 2023 - semfis - Mailing lists@ IFISC

Reminder: IFISC Seminar, TODAY - Wednesday, Feb 08, 2023 at 14:30
by semfis＠ifisc.uib-csic.es 08 Feb '23

08 Feb '23

IFISC Seminar on Wednesday Feb 08, 2023 at 14:30 Place: IFISC Seminar Room Title: The faster, the better: How to accelerate photonic computing to meet the requirements of optical transmission systems Speaker: Irene Estébanez, IFISC Abstract: Photonic reservoir computing is an information processing technique that uses the dynamical response of semiconductor lasers to injected data to perform complex computations. Depending on the task, this approach might offer several benefits over traditional electronic computing, including faster processing speed, greater energy efficiency, and improved performance. Here, we will focus on the application of photonic reservoir computing in the real-world task of optical signal recovery and time series prediction. Based on numerical and experimental results, we demonstrate how bandwidth enhancement can be leveraged to further increase processing speed. Presential in the IFISC seminar room, Zoom stream at: https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/the-faster-the-better-how-to-accelerate-photonic-c/

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Reminder: IFISC Seminar, TODAY - Tuesday, Feb 07, 2023 at 14:30
by semfis＠ifisc.uib-csic.es 07 Feb '23

07 Feb '23

IFISC Seminar on Tuesday Feb 07, 2023 at 14:30 Place: IFISC Seminar Room Title: Modeling a minimal thermal diode Speaker: Celia Anteneodo , Department of Physics, PUC-Rio, Rio de Janeiro, Brazil Abstract: The phenomenon of heat rectification on a chain of particles has been studied for decades as it may guide the creation of thermal diodes. To start tackling the immense complexity involved, we consider a system consisting of two interacting classical particles, each one subject to a Langevin thermal bath and to an on-site potential. We explore the conditions under which the diode effect emerges when inverting the temperature difference. For weak nonlinear forces, we obtain an analytical expression for the heat current that can be established through the system under a temperature gradient. Even simple, this two-particle diode allows to foresee the distinct roles that diverse types of nonlinearity and asymmetry play in thermal rectification of larger systems. Presential in the IFISC seminar room, Zoom stream at: https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/modeling-a-minimal-thermal-diode/

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Reminder: PhD Thesis Defense, TODAY - Monday, Feb 06, 2023 at 10:00
by semfis＠ifisc.uib-csic.es 06 Feb '23

06 Feb '23

PhD Thesis Defense on Monday Feb 06, 2023 at 10:00 Place: IFISC Seminar Room Title: PhD Thesis Defense - Electronic and topological properties of bilayer graphene nanostructures Speaker: Nassima Benchtaber, IFISC (UIB-CSIC) Abstract: Jury: Pilar L&oacute;pez-Sancho (ICMM-CSIC), Francisco Dom&iacute;nguez-Adame (UCM) and Michael Moskalets (IFISC) Advisors: Lloren&ccedil; Serra and David S&aacute;nchez Presential in the seminar room with parallel Zoom stream at https://uibuniversitat.zoom.us/j/91884192262 Url event:https://ifisc.uib-csic.es/en/events/seminars/phd-thesis-defense-electronic-and-topological-prop/

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PhD Thesis Defense on Monday, Feb 06, 2023 at 10:00
by semfis＠ifisc.uib-csic.es 03 Feb '23

03 Feb '23

PhD Thesis Defense on Monday Feb 06, 2023 at 10:00 Place: IFISC Seminar Room Title: PhD Thesis Defense - Electronic and topological properties of bilayer graphene nanostructures Speaker: Nassima Benchtaber, IFISC (UIB-CSIC) Abstract: Jury: Pilar L&oacute;pez-Sancho (ICMM-CSIC), Francisco Dom&iacute;nguez-Adame (UCM) and Michael Moskalets (IFISC) Advisors: Lloren&ccedil; Serra and David S&aacute;nchez Presential in the seminar room with parallel Zoom stream at https://uibuniversitat.zoom.us/j/91884192262 Url event:https://ifisc.uib-csic.es/en/events/seminars/phd-thesis-defense-electronic-and-topological-prop/

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IFISC Seminar on Tuesday, Feb 07, 2023 at 14:30
by semfis＠ifisc.uib-csic.es 03 Feb '23

03 Feb '23

IFISC Seminar on Tuesday Feb 07, 2023 at 14:30 Place: IFISC Seminar Room Title: Modeling a minimal thermal diode Speaker: Celia Anteneodo , Department of Physics, PUC-Rio, Rio de Janeiro, Brazil Abstract: The phenomenon of heat rectification on a chain of particles has been studied for decades as it may guide the creation of thermal diodes. To start tackling the immense complexity involved, we consider a system consisting of two interacting classical particles, each one subject to a Langevin thermal bath and to an on-site potential. We explore the conditions under which the diode effect emerges when inverting the temperature difference. For weak nonlinear forces, we obtain an analytical expression for the heat current that can be established through the system under a temperature gradient. Even simple, this two-particle diode allows to foresee the distinct roles that diverse types of nonlinearity and asymmetry play in thermal rectification of larger systems. Presential in the IFISC seminar room, Zoom stream at&nbsp;https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/modeling-a-minimal-thermal-diode/

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IFISC Seminar on Wednesday, Feb 08, 2023 at 14:30
by semfis＠ifisc.uib-csic.es 03 Feb '23

03 Feb '23

IFISC Seminar on Wednesday Feb 08, 2023 at 14:30 Place: IFISC Seminar Room Title: The faster, the better: How to accelerate photonic computing to meet the requirements of optical transmission systems Speaker: Irene Estébanez, IFISC Abstract: Photonic reservoir computing is an information processing technique that uses the dynamical response of semiconductor lasers to injected data to perform complex computations. Depending on the task, this approach might offer several benefits over traditional electronic computing, including faster processing speed, greater energy efficiency, and improved performance. Here, we will focus on the application of photonic reservoir computing in the real-world task of optical signal recovery and time series prediction. Based on numerical and experimental results, we demonstrate how bandwidth enhancement can be leveraged to further increase processing speed. Presential in the IFISC seminar room, Zoom stream at&nbsp;https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/the-faster-the-better-how-to-accelerate-photonic-c/

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Outreach Event on Thursday, Feb 09, 2023 at 12:00
by semfis＠ifisc.uib-csic.es 03 Feb '23

03 Feb '23

Outreach Event on Thursday Feb 09, 2023 at 12:00 Place: Zoom Seminar Title: 11F: Conecta con las científicas del CSIC en Illes Balears Speaker: Annalisa Caligiuri et al., IFISC, Delegación CSIC en Illes Balears, IMEDEA, SOCIB, IGME, IEO Abstract: La Representaci&oacute;n del Consejo Superior de Investigaciones Cient&iacute;ficas (CSIC) en Illes Balears, en colaboraci&oacute;n con el&nbsp;<a href="https://imedea.uib-csic.es/">IMEDEA</a>&nbsp;(CSIC-UIB),&nbsp;<a href="https://ifisc.uib-csic.es/en/">IFISC</a>&nbsp;(CSIC-UIB), la<a href="https://www.socib.es/">&nbsp;ICTS SOCIB</a>, la unidad del IGME en Baleares y el<a href="http://www.ba.ieo.es/">&nbsp;COB</a>-IEO, organizan&nbsp;directos en Youtube los pr&oacute;ximos d&iacute;as 9 y 10 de febrero de 2023,&nbsp;con motivo del&nbsp;D&iacute;a Internacional de la Mujer y la Ni&ntilde;a en la Ciencia. En estos encuentros informales,&nbsp;podr&aacute;s conocer a algunas cient&iacute;ficas y t&eacute;cnicas relevantes del CSIC del &aacute;mbito balear&nbsp;que te contar&aacute;n sus experiencias como mujeres estudiando y trabajando en&nbsp;carreras STEM. Fechas: <ul> <li>Jueves, 9 de febrero: 12:00-12:45h</li> <li>Viernes, 10 de febrero: 12:00-12:45h</li> </ul> Accede a Youtube&nbsp;a trav&eacute;s de tu m&oacute;vil o navegador del ordenador&nbsp;y&nbsp;dir&iacute;gete al&nbsp;<a href="https://www.youtube.com/@csicbalears">perfil del @csicbalears&nbsp;</a>. All&iacute; encontrar&aacute;s los directos programados o en curso para el 9 y 10 de febrero. Url event:https://ifisc.uib-csic.es/en/events/seminars/11f-conecta-con-las-cientificas-del-csic-en-illes/

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Talk on Thursday, Feb 09, 2023 at 12:00
by semfis＠ifisc.uib-csic.es 03 Feb '23

03 Feb '23

Talk on Thursday Feb 09, 2023 at 12:00 Place: IFISC Seminar Room Title: Information ecosystems: an ecological approach to computational social science Speaker: Violeta Calleja, IFISC (CSIC-UIB) Abstract: Abstract:&nbsp; Understanding human interactions in online communications is of paramount importance for our society. Alarming phenomena such as the spreading of fake news or the formation of echo chambers can emerge in unhealthy communication environments and, ultimately, undermine the democratic discourse. In this context, among many,&nbsp; two issues challenge the health of our information ecosystems: first, being able to identify their universal characteristics; and second, unveiling the individual drivers that give rise to collective attention. Here, following a recently proposed analogy between natural and information ecosystems, we explore these two challenges. We will present universal patterns that arise in very different discussions of online social networks,&nbsp; and we will continue explaining how our communication dynamics are shaped by the competition for attention in these online social networks and the strategies adopted by the users to maximize their visibility. Url event:https://ifisc.uib-csic.es/en/events/seminars/information-ecosystems-an-ecological-approach-to-c/

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Reminder: Talk, TODAY - Friday, Feb 03, 2023 at 15:00
by semfis＠ifisc.uib-csic.es 03 Feb '23

03 Feb '23

Talk on Friday Feb 03, 2023 at 15:00 Place: IFISC Seminar Room Title: Interacting particle systems with mobility and demographic dynamics as biological models Speaker: Alejandro Almodovar, IFISC Abstract: The behaviour of active matter has been intensively investigated in the last decades partly because of its many applications to living systems. In this work, we add stochastic birth-death dynamics to a system of particles with volume exclusion. This is a simple, but general biological ingredient which has not been studied in detail before. The number of particles in the system at long times depends on the birth and death rates, and on a parameter characterising the activity. We find liquid, solid and hexatic phases in the absence of activity. Which one of these phases is realised depends on the birth and death rates. When self-propulsion &nbsp;is considered, we also observe these phases depending on the activity. we will also analyse what happens when there are two types of particles of different sizes. We will study the conditions to find coexistence. Finally, we will show preliminary results when the rates of birth and death are modified by a voter-like interaction, I.e., the demographic rate of each particle depends on those on the surrounds. Presential in the IFISC seminar room, Zoom stream at&nbsp;https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09 Url event:https://ifisc.uib-csic.es/en/events/seminars/interacting-particle-systems-with-mobility-and-d-2/

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Reminder: Talk, TODAY - Friday, Feb 03, 2023 at 12:00
by semfis＠ifisc.uib-csic.es 03 Feb '23

03 Feb '23

Talk on Friday Feb 03, 2023 at 12:00 Place: IFISC Seminar Room Title: Spatial memory in rats under non-life-threatening conditions Speaker: Jorge Medina, IFISC Abstract: <pre> The Morris water navigation task, also known as the Morris water maze, is a commonly used behavioral procedure for studying spatial learning and memory in rodents. In this experiment, a rat is placed in a large circular pool and must find an invisible platform to escape the water. However, this situation puts the rats under high stress, which can be perceived as life-threatening by them. Our goal is to evaluate spatial memory formation in a setting closer to the rat&#39;s daily life (a circular arena in the ground) with a softer, more natural reward: switching off the lights when the target is found. Since rats prefer dark environments, it has the potential to motivate rats to complete the task, without causing too much anxiety. Specifically, we measure memory formation within a single day of experimentation (short-term memory) and between two consecutive days (long-term memory), and analyze how these results change when certain drugs are administered to the rats.</pre> Url event:https://ifisc.uib-csic.es/en/events/seminars/spatial-memory-in-rats-under-non-life-threatening/

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