J. M. R. Parrondo

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J. M. R. Parrondo
Born (1964-01-09) 9 January 1964 (age 58)
Madrid, Spain
Alma materUCM
Known forParrondo's paradox
Brownian ratchets
Physics of information
Statistical mechanics
Scientific career
InstitutionsUCM[citation needed]
Doctoral advisorFrancisco Javier de la Rubia[1]
Other academic advisorsThomas M. Cover
Katja Lindenberg[citation needed]
InfluencesDouglas Hofstadter
InfluencedDerek Abbott

Juan Manuel Rodríguez Parrondo[2][3] (born 9 January 1964) is a Spanish physicist.[not verified in body] He is mostly popular for the invention of the Parrondo's paradox and his contributions in the thermodynamical study of information.[4]


Juan Parrondo received his bachelors degree in 1987 and defended his Ph.D at Complutense University of Madrid in 1992. He started a permanent position at UCM at 1996. In the same year he invented the well-known Parrondo's Paradox, according to which 2 losing strategies may win while working together. Since then, the paradox has been widely used in biology and finances. He has also completed a lot of research in the field of Information Theory, mostly looking at information as a thermodynamic concept, which as a result of ergodicity breaking changed the entropy of the system.

Works by Juan M.R. Parrondo[edit]

"Noise-Induced Non-equilibrium Phase Transition" C. Van den Broeck, J. M. R. Parrondo and R. Toral, Physical Review Letters, vol. 73 p. 3395 (1994)


  1. ^ "Juan Parrondo - the Mathematics Genealogy Project".
  2. ^ While Spanish scientists normally use the first of their two surnames when publishing in English-speaking journals, Parrondo publishes under his second surname, Rodríguez being his father's surname and a very common surname in Spain, and Parrondo being his mother's surname.
  3. ^ In various sources Parrondo's name is sometimes incorrectly spelled "Parrando," an error that can be traced to a 25 January 2000 article on "Parrando's Paradox" (sic) in the New York Times that propagated the incorrect spelling.[citation needed]
  4. ^ Sagawa, Takahiro; Horowitz, Jordan M.; Parrondo, Juan M. R. (February 2015). "Thermodynamics of information". Nature Physics. 11 (2): 131–139. Bibcode:2015NatPh..11..131P. doi:10.1038/nphys3230. ISSN 1745-2481.

Further reading[edit]

"Game theory: Losing strategies can win by Parrondo's paradox" G. P. Harmer and D. Abbott, Nature vol. 402, p. 864 (1999)

External links[edit]