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Amanda Weltman is a South African theoretical physicist and professor at the University of Cape Town. She is best known for her work on dark matter and dark energy, and for her contributions to the development of the theory of inflation. Weltman was born in 1979 in Cape Cod, Massachusetts, United States. She received her B.Sc. in Physics and Mathematics from the University of Cape Town in 2000, and her Ph.D. in Theoretical Physics from the University of Cambridge in 2004. Weltman is a professor at the University of Cape Town, where she is the director of the Centre for Theoretical Cosmology. She is also a research associate at the South African Astronomical Observatory. Weltman has published numerous papers on dark matter and dark energy, and has made significant contributions to the development of the theory of inflation. She has also written several books, including The Cosmic Web: Dark Matter and the Structure of the Universe (2013) and The Inflationary Universe: The Quest for a New Theory of Cosmic Origins (2015). Weltman has received numerous awards and honors, including the South African National Research Foundation's A-rating for her research, the South African Institute of Physics' Gold Medal, and the South African Academy of Science and Arts' Gold Medal. She was also named one of the Mail & Guardian's 200 Young South Africans in 2011.

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Occupation Physicist
Age 44 years old
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Born , 1979
Birthday
Birthplace Cape Cod, Massachusetts, United States
Nationality South Africa

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Amanda Weltman Height, Weight & Measurements

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Amanda Weltman Net Worth

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Timeline

2009

In 2009, Weltman completed her Ph.D in theoretical physics at Columbia University in New York. She was supervised by theoretical physicist Brian Greene. She also did post-doctoral research at the University of Cambridge before returning to South Africa. Her post-doctoral work was with the physicist Stephen Hawking. She is currently part of a large research group at the University of Cape Town.

2004

Weltman became known when she co-authored a 2004 paper titled "Chameleon Cosmology" with Justin Khoury, which proposed a theory to explain dark energy. She was a 24-year-old graduate student at Columbia University at the time. Dark energy is proposed as an explanation for the accelerating expansion of the universe. Khoury and Weltman proposed the existence of a new force that drove this expansion, which changed depending on the environment it was in. It would be weak when particles were densely packed together, and strong when they were far apart. Thus, the theory suggests that in regions where matter is relatively dense, the chameleon force is difficult to detect; but in empty regions of space, it acts to push bodies apart and expand the universe. The theory was such that it could not be tested for ten years after it was proposed; however, in 2014 experimenters at the University of Nottingham developed a method that had the potential to test the theory. The theory evolved by Khoury and Weltman has been described as leading to "entire sub-fields in cosmology and experimental physics." Her work has been described as a continuation of the work of Albert Einstein.

1999

She lives with her husband Jeff Murugan, who is a string theorist at the same university. She met him in 1999, and has two children with him. She has stated that she was glad to be brought up in a family without gender stereotypes, and that barriers that female scientists faced were particularly harmful when they occurred in the form of stereotypes that children were exposed to. She and her husband both take time off to care for their children, and frequently travel to conferences as a family.

1979

Amanda Weltman (born 1979) is a South African theoretical physicist. She is known for co-authoring a paper proposing the "chameleon theory" to explain the existence of dark energy. She is currently a researcher at the University of Cape Town.

Weltman was born in 1979 in Cape Cod, Massachusetts, and travelled to South Africa with her parents when she was two months old. She spent her childhood in Johannesburg and Cape Town. She was a competitive gymnast as a child.