Communication and Disclosure
April 22, 2017 - Tempe (AZ) USA
Dr. Adi Bulsara from SPAWAR System Center, San Diego, meets L. Gammaitoni from NiPS to discuss future collaboration.
NiPS Laboratory has a long collaboration record with SPAWAR on sensor devices and nonlinear stochastic dynamics. During the meeting were presented recent development on nonlinear energy harvesting for sensing applications at micro and nano scales. These results will be most probably presented at the next international conference to be held in Gubbio, Italy, on July 3-7 2017.
For more information please visit: www.microenergy2017.org.
Phoenix, AZ - April 19, 2017
Luca Gammaitoni presented at talk at the BEYOND CENTER FOR FUNDAMENTAL CONCEPTS IN SCIENCE Power of Information Workshops devoted to Information and non-equilibrium thermodynamics
April 18 – 20, 2017
Arizona State University
Zurich Jan, 10 2017
Igor Neri (right in the picture) and Luca Gammaitoni (left in the picture) represented NiPS at the kick off meeting of the new European project OPRECOMP.
OPRECOM is is a 4-year research project co-funded under the EU 7th Framework Horizon 2020 – Re Program Future and Emerging Technologies (FET) Proactive Initiative: emerging themes and communities. FET aims to go beyond the conventional boundaries of ICT and ventures into uncharted areas, often inspired by and in close collaboration with other scientific disciplines.
OPRECOMP aims to build an innovative, reliable foundation for computing based on transprecision analytics.
For more info please visit the OPRECOMP web site: http://oprecomp.wpengine.com
Igor Neri from NiPS presented a talk at the "WAPCO: 3rd Workshop on Approximate Computing"
HiPEAC conference - 23-25 Jan 2017 - Stocholm.
The Micro Energy 2017 conference will be held in Gubbio (IT), July 3rd to July 7th, organized by the Noise in Physical Systems (NiPS) Laboratory of the University of Perugia, with the technical sponsorship of the EEE IMS Italy Chapter.
The conference is aimed at bringing together international scientists from academia, research centres and industry to discuss recent development in the topic of micro energy and its use for powering sensing and communicating devices.
The conference topics include (but are not limited to) the following:
Session I - Micro energy harvesting
Energy transformation processes at micro and nano scales, mathematical models, harvesting efficiency, thermoelectric, photovoltaic, electrostatic, electrodynamic, piezoelectric, harvesting in biological systems, novel concepts in energy harvesting.
Session II - Micro energy dissipation
Noise and friction phenomena, fundamental limits in energy dissipation, Landauer bound, heat dissipation, thermodynamics of non-equilibrium systems, stochastic resonance and noise induced phenomena.
Session III - Micro energy storage
High performance batteries, super capacitors, micro-fuel cells, non-conventional storage systems
Session IV - Micro energy use
Autonomous wireless sensors, zero-power computing, zero-power sensing, IoT, approximate computing, energy aware software, transient computing.
Mar. 1 2017, deadline for contributed oral/posters
Mar. 15 2017, notification of acceptance oral/posters
Apr. 15 2017, end early registration
May. 15 2017, end late registration
For more information please visit: www.microenergy2017.org
Perugia, 30 Nov. 2016
Breaking the energy efficiency limit for conventional logic gates.
HiPEACINFO, the newsletter from the High Performance Computing community presents the recent experiment made at NiPS Lavoratory.
To know more, read the article here.
Original paper on Nature Communications: Sub-kBT micro-electromechanical irreversible logic gate
Barcelona, November 18th, 2016
Miquel López-Suárez (left)
Miquel López-Suárez, from NiPS, received his PhD special prize award for his theses "Non-linear Nanoelectromechanical Systems for Energy Harvesting".
The PhD special prizes confer value to theses which have received the qualification of excellence "Cum Laude" and which, having been proposed by the Admissions Committee of each academic programme, stand out for their contribution and advance in the different areas of that University.
The cerimony was held at the Hotel Campusof the Universitat Autònoma de Barcelona on November the 18th of 2016.
Perugia, 6 Sept. 2016
NiPS Seminar: A protocol for reaching equilibrium arbitrary fast
Prof. Sergio Ciliberto
Laboratoire de Physique de ENSL
Universitè de Lyon
When a control parameter of a system is suddenly changed, the accessible phase space changes too and the system needs its characteristic relaxation time to reach the final equilibrium distribution. An important and relevant question is whether it is possible to travel from an equilibrium state to another in an arbitrary time, much shorter than the natural relaxation time.
Such strategies are reminiscent of those worked out in the recent field of Shortcut to Adiabaticity, that aims at developing protocols, both in quantum and in classical regimes, allowing the system to move as fast as possible from one equilibrium position to a new one, provided that there exist an adiabatic transformation relating the two. Proof of principle experiments have been carried out for isolated systems.
Instead in open system the reduction of the relaxation time, which is frequently desired and necessary, is often obtained by complex feedback processes. In this talk, we present a protocol,named Engineered Swift Equilibration (ESE), that shortcuts time-consuming relaxations. We tested experimentally this protocol on a Brownian particle trapped in an optical potential first and then on an AFM cantilever. We show that applying a specific driving, one can reach equilibrium in an arbitrary short time. We also estimate the energetic cost to get such a time reduction.
Beyond its fundamental interest, the ESE method paves the way for applications in micro and nano devices, in high speed AFM, or in monitoring mesoscopic chemical or biological process.
Engineered Swift Equilibration, Ignacio A Martinez; Artyom Petrosyan; David Guéry-Odelin;Emmanuel Trizac; Sergio Ciliberto, Nature Physics, published online: 9 May 2016
Arbitrary fast modulation of an atomic force microscope, Anne Le Cunuder; Ignacio A Martinez; Artyom Petrosyan; David Guéry-Odelin; Emmanuel Trizac; Sergio Ciliberto. to be published in Applied Physics Letters.
M. Lopez-Suarez, I. Neri, L. Gammaitoni - Photo by E. Mariani
Perugia, Aug. 15th - 2016
Research recently published on Nature Communications shows that traditional logic gates, used in present computers, could be operated without minimum energy dissipation.
Reducing energy consumption in Information and Communication Technology (ICT) devices has nowadays become a strategic task to further improve performances and diffusion of such technology. Both the future of supercomputing and the dawn of the Internet-of-Things scenario are at risk if the power consumption problem is not solved: too much electric energy is required by ICT devices. On the other hand: aren’t we tired enough of continuously recharging the battery of mobile phones?
To complicate things, the continuous improvement in the efficiency (number of operation per Watt) of computing devices over the years has finally brought the technology close to what was supposed to be a fundamental limit of physics: the so-called Landauer’s limit.
An experiment at NiPS Lab, in Perugia (Italy) shows that a traditional logic gate could, in principle, be operated below the Landauer’s limit and thus the supposed minimum energy expenditure for operating traditional logic gates, does not exist. A good news for those interested in further improving energy efficiency in ICT.
The results of this experiment made by the scientists of NiPS Laboratory, led by Prof. Luca Gammaitoni, at the University of Perugia, published on Nature Communications on 28th June 2016, will be presented in the next few weeks at two international conferences: the ICT-Energy Science conference in Aalborg (DK) on Aug. 17th by Miquel Lopez-Suarez and the ICAND 2016 conference in Denver (CO) on Aug. 29 by L. Gammaitoni.
Download our press release.
The phenomenon of Stochastic Resonance, proposed for the first time in 1981 (R. Benzi, S, Sutera, A. Vulpiani, J. Phys. A 14, L453, 1981; C. Nicolis, G. Nicolis, Tellus 33, 225, 1981) has attracted continuous attention in the last 30 years. Most of its fortune among scientists and the public at large is due to its counter-intuitive characteristic: given a non-linear dynamic system, the degree of order in its behavior can be increased simply by injecting more noise, i.e. increasing the disorder. Clearly what triggered researchers’ curiosity the most was the suggestion that noise, often considered a nuisance of small influence, can play instead a very significant role with potential applications to biological systems and technological devices.
In 1998 an international team of scientists wrote the most comprehensive and, to date, the most appreciated review article to describe this phenomenon:
Title: Stochastic resonance
Authors: GAMMAITONI, L; HANGGI, P; JUNG, P; MARCHESONI, F.
Journal: REVIEWS OF MODERN PHYSICS Volume: 70 Issue: 1 Pages: 223-287 Published: 1998
Since then the review article has grown to become a highly cited paper that has recently reached 5,000 citations on Google Scholar (3,745 on ISI).
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