Renata Ernestovna Kallosch

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Renata Ernestovna Kallosch

Renata Ernestowna Kallosch ( Russian Рената Эрнестовна Каллош , English transcription Kallosh ; * 1943 ) is a Russian-American theoretical physicist who mainly works on quantum field theories ( supersymmetry , string theory / M-theory, supergravity ).

Life

Kallosch graduated from Moscow State University in 1966 and received his doctorate in 1968 from the Lebedev Institute in Moscow. From 1981 to 1989 she was a professor there. From 1989 to 1990 she was at CERN and from 1990 professor at Stanford University .

Kallosch worked in the 1970s on the quantization of Yang-Mills theories with the background field method of Bryce DeWitt and Feynman's rules for supergravity and in the 1980s, for example, on the quantization of superstrings.

She became known in the 1990s for the investigation of special supersymmetrical black holes, from which the microscopic derivation of the Bekenstein-Hawking entropy was possible. Kallosh was able to demonstrate a lower limitation of the mass by the supersymmetric charges and found evidence of attractor mechanisms. More recently, she has been studying the early universe and dark energy in string theory / M-theory and supergravity.

With Shamit Kachru , Linde and Sandip Trivedi, she developed the KKLT scenario of string cosmology in 2003, which also includes inflation and the possibility of generating a positive cosmological constant that was previously difficult to explain in string theory. In their model, branes and fluxes (generalizations of magnetic fields) are introduced into the six-dimensional Calabi-Yau spaces of the string theory background, which stabilize their topology. Their approach solved the problem of stabilizing the moduli (parameters that parameterize the Calabi-Yau spaces) and thus another open problem of string theory. In 2002, Linde and Kallosch discussed the possibility that our universe could collapse in another 13 billion years because the vacuum energy becomes negative.

In 2018 Kallosch was elected to the American Academy of Arts and Sciences .

Renata Kallosch is married to the cosmologist Andrei Linde , with whom she has two sons. Linde is also a professor at Stanford and was born in Russia.

Web links

Individual evidence

  1. ^ Kallosh, Renata - Author profile . INSPIRE-HEP . Retrieved July 19, 2019.
  2. ^ Kallosh: The Renormalization in Nonabelian Gauge Theories . In: Nuclear Physics B , Volume 78, 1974, p. 293
  3. ^ Kallosh: Modified Feynman Rules in Supergravity . In: Nuclear Physics B , Volume 141, 1978, p. 141, in addition to the Faddeev-Popov ghosts, further "Nielsen-Kallosh" ghost fields
  4. ↑ Kallosh: Quantization of Green-Black-Superstring . In: Physics Letters B , Volume 195, 1987, p. 369
  5. ^ Kallosh, Linde, Ortin, Peet, van Proeyen: Supersymmetry as Cosmic Censor . In: Physical Review D , Volume 46, 1992, p. 5278, arxiv : hep-th / 9205027
    Sergio Ferrara , Kallosh: Supersymmetry and Attractors . In: Physical Review D , 54, 1996, p. 1514
  6. ↑ Kallosh, Linde, Prokushkin, Shmakova: Super Gravity, Dark Energy and the Fate of the Universe . 2002, arxiv : hep-th / 0208156
    dies., Kratochvil: Observational bounds on cosmic doomsday . 2003, arxiv : astro-ph / 0307185
  7. ↑ Shamit Kachru, Linde, Kallosh, Sandip Trivedi: De Sitter Vacua in String Theory . In: Phys. Rev. D , Volume 68, 2003, arxiv : hep-th / 0301240 . In addition, Cliff Burgess, Quevedo. Mirror online
personal data
SURNAME Kallosch, Renata Ernestovna
ALTERNATIVE NAMES Kallosh, Renata
BRIEF DESCRIPTION Russian physicist
DATE OF BIRTH 1943