Arkady Alexander Tseytlin FRS (Аркадий Александрович Цейтлин; born August 31, 1956, in Moscow) is a Russian and British theoretical physicist. He works on

superstring theory Superstring theory is an attempt to explain all of the particles and fundamental forces of nature in one theory by modeling them as vibrations of tiny supersymmetric strings. 'Superstring theory' is a shorthand for supersymmetric string t ...

and the

AdS/CFT correspondence In theoretical physics, the anti-de Sitter/conformal field theory correspondence (frequently abbreviated as AdS/CFT) is a conjectured relationship between two kinds of physical theories. On one side are anti-de Sitter spaces (AdS) that are used ...

. Tseytlin graduated from

Moscow State University Moscow State University (MSU), officially M. V. Lomonosov Moscow State University,. is a public university, public research university in Moscow, Russia. The university includes 15 research institutes, 43 faculties, more than 300 departments, a ...

with Master degree in physics in 1979. In 1984 he got PhD from

Lebedev Physical Institute The Lebedev Physical Institute of the Russian Academy of Sciences (LPI RAS or just LPI) (in ), situated in Moscow, is a Russian research institute specializing in physics. The institute was established in its present shape in 1934 by academician ...

(under the supervision of E. S. Fradkin) and joined the academic staff there. Since 1992, he has been a professor at

Imperial College London Imperial College London, also known as Imperial, is a Public university, public research university in London, England. Its history began with Prince Albert of Saxe-Coburg and Gotha, Prince Albert, husband of Queen Victoria, who envisioned a Al ...

. Tseytlin has made important contributions to the development of modern string theory. In particular, he, with E. S. Fradkin, developed the sigma-model approach to string dynamics in curved spacetime and established the central role of the Born-Infeld action in the open string theory. He also constructed, with R. R. Metsaev, a superstring action in

anti-de Sitter space In mathematics and physics, ''n''-dimensional anti-de Sitter space (AdS''n'') is a symmetric_space, maximally symmetric Lorentzian manifold with constant negative scalar curvature. Anti-de Sitter space and de Sitter space are na ...

, which plays a central role in the duality between gauge fields and strings and underlies the exact solution of the N=4 supersymmetric Yang-Mills theory based on integrability. In 2011, Tseytlin was awarded the

Rayleigh Medal and Prize The Institute of Physics (IOP) awards numerous prizes to acknowledge contributions to physics research, education and applications. It also offers smaller specific subject-group prizes, such as for PhD thesis submissions. Bilateral awards * The ...

of the UK-based

Institute of Physics The Institute of Physics (IOP) is a UK-based not-for-profit learned society and professional body that works to advance physics education, physics research, research and applied physics, application. It was founded in 1874 and has a worldwide ...

. In 2023 he was awarded the International

Pomeranchuk Prize The Pomeranchuk Prize is an international award for theoretical physics, awarded annually since 1998 by the Institute for Theoretical and Experimental Physics (ITEP) from Moscow. It is named after Russian physicist Isaak Yakovlevich Pomeranchuk, wh ...

. In 2025 he was elected a

Fellow of the Royal Society Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the Fellows of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural science, natural knowledge, incl ...

of the UK.

References

{{DEFAULTSORT:Tseytlin 1956 births Living people Soviet physicists 20th-century Russian physicists 21st-century Russian physicists 20th-century British physicists 21st-century British physicists Russian string theorists British string theorists Moscow State University alumni Academics of Imperial College London Fellows of the Royal Society