RT Journal Article
T1 Low-energy truly random number generation with superparamagnetic tunnel junctions for unconventional computing
A1 Vodenicarevic, D.
A1 Locatelli, N.
A1 Mizrahi, A.
A1 Friedman, J. S.
A1 Vincent, A. F.
A1 Romera Rabasa, Miguel Álvaro
A1 Fukushima, A.
A1 Yakushiji, K.
A1 Kubota, H.
A1 Yuasa, S.
A1 Tiwari, S.
A1 Grollier, J.
A1 Querlioz, D.
AB Low-energy random number generation is critical for many emerging computing schemes proposed to complement or replace von Neumann architectures. However, current random number generators are always associated with an energy cost that is prohibitive for these computing schemes. We introduce random number bit generation based on specific nanodevices: superparamagnetic tunnel junctions. We experimentally demonstrate high-quality random bit generation that represents an orders-of-magnitude improvement in energy efficiency over current solutions. We show that the random generation speed improves with nanodevice scaling, and we investigate the impact of temperature, magnetic field, and cross talk. Finally, we show how alternative computing schemes can be implemented using superparamagentic tunnel junctions as random number generators. These results open the way for fabricating efficient hardware computing devices leveraging stochasticity, and they highlight an alternative use for emerging nanodevices.
PB American Physical Society
SN 2331-7019
YR 2017
FD 2017-11-22
LK https://hdl.handle.net/20.500.14352/96027
UL https://hdl.handle.net/20.500.14352/96027
LA eng
NO Vodenicarevic, D., et al. «Low-Energy Truly Random Number Generation with Superparamagnetic Tunnel Junctions for Unconventional Computing». Physical Review Applied, vol. 8, n.o 5, noviembre de 2017, p. 054045. DOI.org (Crossref), https://doi.org/10.1103/PhysRevApplied.8.054045.
NO European Research Council
NO BAMBI EU collaborative FET Project grant (FP7-ICT-C)
NO Agence Nationale de la Recherche (France)
NO French Ministere de l'ecologie, du developpement durable et de l'energie
DS Docta Complutense
RD 6 abr 2025