Geertruida de Haas-Lorentz

Geertruida de Haas-Lorentz
De Haas-Lorentz, before 1909
Born
Geertruida Luberta Lorentz

(1885-10-20)20 October 1885
Leiden, South Holland, Netherlands
Died2 January 1973(1973-01-02) (aged 87)
Leiden, South Holland, Netherlands
Alma materLeiden University (PhD)
Known for
Spouse
(m. 1910; died 1960)
Children4
FatherHendrik Lorentz
Scientific career
FieldsCondensed matter physics
InstitutionsTechnical University of Delft
ThesisOver de theorie van de Brown'sche beweging en daarmede verwante verschijnselen (1912)
Doctoral advisorHendrik Lorentz

Geertruida Luberta de Haas-Lorentz (née Lorentz; 20 November 1885 – 1973) was a Dutch theoretical physicist and a professor at the Technical University of Delft. She was the first to theoretically study thermal fluctuations in electric circuits, treating electrons as Brownian particles. Consequently, she is considered one of the pioneers of electrical noise theory. She was the daughter and doctoral student of Hendrik Lorentz. She went by the name Berta, or Ber.