Communication and Disclosure News

OPRECOMP Kick-off meeting in Zurich

 

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 at HiPEAC 2017

 

 

Igor Neri from NiPS presented a talk at the  "WAPCO: 3rd Workshop on Approximate Computing"

HiPEAC conference - 23-25 Jan 2017 -  Stocholm.

Micro Energy 2017 international Conference

 

 

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. 
 
Relevant dates:

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

NiPS result on Landauer limit in HiPEACINFO

 

 

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

PhD special prize award to Miquel López-Suárez

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.

Luca Gammaitoni presents at ICAND2016

 

 

Denver, Aug. 29th, 2016

 

Luca Gammaitoni, NiPS Director, presented an invited talk al the International Conference on Applications in Nonlinear Dynamics (ICAND 2016) in  Denver, Colorado, Aug. 28- Sept. 1, 2016.

Computing below the expected energy limits

Seminar: Sergio Ciliberto, A protocol for reaching equilibrium arbitrary fast

 

Perugia, 6 Sept. 2016

 

NiPS Seminar: A protocol for reaching equilibrium arbitrary fast

Prof. Sergio Ciliberto
Laboratoire de Physique de ENSL

Universitè de Lyon



Abstract

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.



References:

  1. Engineered Swift Equilibration,  Ignacio A Martinez; Artyom Petrosyan; David Guéry-Odelin;Emmanuel Trizac; Sergio Ciliberto, Nature Physics, published online: 9 May 2016
  2. 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.
 

Improving energy efficiency in ICT? Limit is the sky

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. 

 

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Stochastic Resonance review paper hits 5,000 citations on Google Scholar

 

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).
 
 
Statistics available at:
https://scholar.google.it/citations?view_op=view_citation&hl=en&user=uZet4d0AAAAJ&citation_for_view=uZe
t4d0AAAAJ:u5HHmVD_uO8C
 

Fernando Gonzales Zalba, from Hitachi Cambridge visits NiPS

 

 

Perugia, May 11-13, 2016
 
Dr. Fernando Gonzalez-Zalba Senior Research Scientist Hitachi Cambridge Laboratory, Cambridge, visited NiPS Laboratory for planning future collaborations.
 
On Wednesday May 11, at 15:00, Dr. Gonzalez-Zalba presented a public seminar on 
 
Towards quantum computing using silicon-on-insulator transistor technology
 
Abstact:
Silicon complementary metal oxide semiconductor (CMOS) technology has driven the
success of the semiconductor industry in the last few decades. The classical computational
power has increased exponentially but this progress is bound to reach its fundamental limits
in the next years. We are now starting to see that CMOS technology itself can offer an
alternative to overcome its classical fundamental limits, not in
termsofcontinuedminiaturizationbutintermsofadifferentcomputingparadigm:quantumcomput
ation. A quantum computer promises to be exponentially more efficient than classical
computers in solving a specific set of problems, such as database searches and prime
number factorization.