Albert Joseph Libchaber (born 23 October 1934, Paris) is a Detlev W. Bronk Professor at The Rockefeller University.
Libchaber was a member of the Laboratoire de Physique des Solides of the École Normale Supérieure until 1982 then professor at the University of Chicago from 1983 to 1991.
In this way, he clearly observed the bifurcations that lead to chaos: period doubling, possibly accompanied by locking of several incommensurate frequencies.
The experiment is so perfect that it can measure quantitatively the Feigenbaum critical exponents that characterize the cascade to chaos.
For this achievement, he was awarded the Wolf Prize in Physics in 1986, along with Mitchell J. Feigenbaum, "for his brilliant experimental demonstration of the transition to turbulence and chaos in dynamical systems".