Matthew Benjamin Kleban is an American theoretical physicist who works on

string theory In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. String theory describes how these strings propagate through space and interac ...

and theoretical cosmology. He is the chair of the Department of Physics and a professor at

New York University New York University (NYU) is a private research university in New York City. Chartered in 1831 by the New York State Legislature, NYU was founded by a group of New Yorkers led by then-Secretary of the Treasury Albert Gallatin. In 1832, the ...

, former director of the

Center for Cosmology and Particle Physics New York University (NYU) is a private research university in New York City. Chartered in 1831 by the New York State Legislature, NYU was founded by a group of New Yorkers led by then-Secretary of the Treasury Albert Gallatin. In 1832, the ...

, and a former member of the

Institute for Advanced Study The Institute for Advanced Study (IAS), located in Princeton, New Jersey, in the United States, is an independent center for theoretical research and intellectual inquiry. It has served as the academic home of internationally preeminent scholar ...

. His contributions to physics include: * The discovery of the first distinct signature of the black hole singularity in

AdS/CFT In theoretical physics, the anti-de Sitter/conformal field theory correspondence, sometimes called Maldacena duality or gauge/gravity duality, is a conjectured relationship between two kinds of physical theories. On one side are anti-de Sitter s ...

(with Lukasz Fidkowski,

Veronika Hubeny Veronika E. Hubeny is an American physicist and academic who specialises in string theory and quantum gravity. Since 2015, she has been a professor in the Department of Physics of University of California, Davis. Previously, Hubeny was Professor ...

and

Stephen Shenker Stephen Hart Shenker (born 1953) is an American theoretical physicist who works on string theory. He is a professor at Stanford University and former director of the Stanford Institute for Theoretical Physics. His brother Scott Shenker is a com ...

) * Pioneering work on the subtleties of very late-time cosmology in the presence of a positive cosmological constant, and the "Boltzmann brain" problem (with

Lisa Dyson Lisa Dyson is an American scientist, physicist, and entrepreneur. She is the founder and CEO of Kiverdi, a biotechnology company that uses carbon transformation technologies to develop sustainable products for commercial applications, including ...

and

Leonard Susskind Leonard Susskind (; born June 16, 1940)his 60th birthday was celebrated with a special symposium at Stanford University.in Geoffrey West's introduction, he gives Suskind's current age as 74 and says his birthday was recent. is an American physicis ...

) * A determination of the effects of cosmic bubble collisions on the microwave background radiation and other cosmological observables. * Work on the fundamental origin of

cosmic inflation In physical cosmology, cosmic inflation, cosmological inflation, or just inflation, is a theory of exponential expansion of space in the early universe. The inflationary epoch lasted from seconds after the conjectured Big Bang singularity ...

. * Demonstrating that theories with multiple axion fields can account for many otherwise mysterious features of our universe.

Selected works

References

Astronomy magazine cover story on observational signals of the multiverse

Physics World article on bubble collisions

Discover Magazine profile of Kleban

External links

of the

{{DEFAULTSORT:Kleban, Matthew 21st-century American physicists American string theorists Living people Stanford University alumni New York University faculty 1974 births