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Seminar: the cost of remembering

Notre Dame University, IN (USA) - Oct. 2nd 2018

ICAND 2018 - NiPS presentation on "The cost of remembering"



Aug. 5-9, Maui (USA)

International Conference on Applications in Nonlinear Dynamics (

Luca Gammaitoni presents recent work at NiPS on the Physics of Computing with an invited talk entitled: The Cost of Remembering.

In 1961, Rolf Landauer pointed out that resetting a binary memory requires a minimum energy of kBT ln(2). However, once written, any memory is doomed to loose its content if no action is taken. To avoid memory losses, a refresh procedure is periodically performed. In this talk we present a theoretical and experimental study of sub-kBT system to evaluate the minimum energy required to preserve one bit of information over time. Two main conclusions are drawn:

i) in principle the energetic cost to preserve information for a fixed time duration with a given error probability can be arbitrarily reduced if the refresh procedure is performed often enough;

ii) the Heisenberg uncertainty principle sets an upper bound on the memory lifetime: no memory can last forever.


The Cost of remembering

Luca Gammaitoni from NiPS visited San Diego State University



San Diego (CA), Aug. 2nd, 2018

Luca Gammaitoni from NiPS and Antonio Palacios from San Diego State University met in San Diego on Aug. 2nd, to discuss scientific collaboration on non linear dynamics.

New article from NiPS: Operating gravitational wave detectors far from equilibrium


Perugia, July 10th, 2018

A new article from NiPS Laboratory on "Operating gravitational wave detectors far from equilibrium" has been published on Classical and Quantum Gravity.

Article available here: article

Igor Neri presents NiPS Lab research at CSNDD'2018

Tangier, June 25 2018

Igor Neri from NiPS presents a talk entitled: Fundamental energy cost of NEMS and MEMS memory device.

at the International Conference on Structural Nonlinear Dynamics and Diagnosis (CSNDD'2018) in Tangier, Morocco, June 25-27, 2018.


L. Gammaitoni visits AST to discuss possible collaborations


Terni, May 11, 2018

L. Gammaitoni visited the Acciai Speciali Terni (AST) company. During the visit, possible collaborations between AST and NiPS Lab have been discussed.

The cost of remembering


Perugia, May 8, 2018


Published online the new paper on the "Cost of remembering" from NiPS.
The paper, published on Physycal Review A, deals with the fundamental energy limits associated with preserving a single bit of information.

The good news is that, if you operate fast enough and/or carefully enough, you can get away with a negligible energy cost.
The bad news is that no memory can last forever...

Link to the article in PRA:

Link to the article in arXiv:

Micro energy from bio cell at the Soft robotics conference


Livorno, April 24, 2018

L. Gammaitoni presents recent work done at NiPS Laboratory, in collaboration with L. Catacuzzeno and F. Franciolini, of the Biology depatment of the University of Perugia, on energy harvesting from biological cells.

The work, perfomed at NiPS by F. Orfei, A. Di Michele and L. Gammaitoni, deals with the possibility to use a biological cell as a source of electrical energy for powering micro robots embedded in living organism.

EnABLES Kick-off meeting, at the Bedford Hotel & Congress Centre, in Brussels

Brussels Jan 31st 2018



We just held the EnABLES Kick-off meeting, at the Bedford Hotel & Congress Centre, in Brussels.

At the meeting participated representatives from all the 9 partners.

NiPS Laboratory was represented by Francesco Orfei and Luca Gammaitoni.

EnABLES is a 4 year EC funded project EnABLES that will integrate key European research infrastructures (RIs) in powering the Internet of Things (IoT).

6 research institutes together with 5 knowledge hubs of excellence will address the long term needs of
energy management in self-powered smart sensor systems as required by IoT innovation. To enable truly
‘invisible’, unobtrusive and self-powered (autonomous) wireless devices a key challenge is to bridge the
gap between capturing ‘ambient’ energy supply from energy harvesting sources (EH), integrating new
devices for energy storage (ES) and taking into account the micro-power management (MPM)
requirements for miniaturised system operation. 

KAGRA cryogenic payload: NiPS lab is collaborating with the Japanese project


Tokyo, Nov. 16 2017

Nips Laboratory is collaborating with colleagues of the KAGRA gravitational wave detection experiment, in Japan.

In the picture the installation status of the KAGRA cryogenic payload at Y-end. The CRY subgroup members, successfully finished to construct the cryogenic payload with a practical sapphire mirror.