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Siddhesh Joshi

Piet Hut

Nationality  Dutch American
Name  Piet Hut

Piet Hut httpswwwidsiasedusitesidsiasedufilesim

Born  September 26, 1952 (age 63) Utrecht (1952-09-26)
Institutions  Institute for Advanced Study
Alma mater  Utrecht University University of Amsterdam
Known for  Barnes–Hut algorithm Pseudo-synchronization
Books  The Gravitational Million-Body Problem: A Multidisciplinary Approach to Star Cluster Dynamics
Education  University of Amsterdam, Utrecht University
Fields  Astrophysics, Interdisciplinarity
Similar People  Ed Lu, Rusty Schweickart, Ed van den Heuvel

Doctoral advisor  Ed van den Heuvel
Organizations founded  B612 Foundation

Cti director dr william storrar s interview with professor piet hut


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Piet Hut (born September 26, 1952) is a Dutch-American astrophysicist, who divides his time between research in computer simulations of dense stellar systems and broadly interdisciplinary collaborations, ranging from other fields in natural science to computer science, cognitive psychology and philosophy.

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He is currently the Head of the Program in Interdisciplinary Studies at the Institute for Advanced Study (IAS) in Princeton, New Jersey, USA. Asteroid 17031 Piethut is named after him, in honor of his work in planetary dynamics and for co-founding the B612 Foundation, which focuses on prevention of asteroid impacts on Earth.

Piet hut panel iii response


Career

In the Netherlands, Hut did a double PhD program, at Utrecht University, in particle physics under Martinus Veltman and in Amsterdam in astrophysics under Ed van den Heuvel, resulting in a PhD at the University of Amsterdam.

Previously an assistant professor at the University of California, Berkeley, Hut was in 1985, at the age of 32, appointed as a full professor at the Institute for Advanced Study. At the time, he was the youngest professor appointed there.

Hut became a corresponding member of the Royal Netherlands Academy of Arts and Sciences in 1996.

Astrophysics research

An accomplished astrophysicist, Hut is best known for the Barnes–Hut simulation algorithm, developed with Joshua Barnes. By using a tree-based data structure, the Barnes–Hut method significantly speeds up the calculation of the gravitational motion of large numbers of stars, making accessible such problems as collisions between galaxies. Barnes–Hut simulation algorithm, which has become a standard in N-body problems, reduces its complexity to N log N or N.

Hut introduced the concept of pseudo-synchronicity, which is now widely cited in the literature on tidal evolution of exoplanets.

He co-authored a graduate textbook "The Gravitational Million Body Problem"., invented a mathematical sequence called Piet Hut's "coat-hanger" sequence, and has pioneered the use of virtual worlds for research and education in (astro)physics.

Hut is one of the founders of the B612 Foundation, MODEST, MICA, ACS, the GRAPE (Gravity Pipe) project, and AMUSE.

Interdisciplinary research

Hut's broadly interdisciplinary research started with his study of an asteroid impact to explain the demise of the dinosaurs, when he edited a review article for Nature with four paleontologists, two geologists and one other astrophysicist. He has also widely engaged in joint research with computer scientists and philosophers and cognitive psychologists.

In recognition of his work, he was invited to participate in various conferences, spanning a range from a workshop with the 14th Dalai Lama and five physicists in Dharamsala, India to the World Economic Forum in Davos, Switzerland, and he has been invited as a member of the Husserl Circle.

Hut is one of the founders of the Kira Institute.

Employment controversy

In July, 2000, IAS sued Hut in federal district court, seeking to enforce a 1996 agreement in which Hut had promised to resign by mid-2001. According to IAS Director Phillip Griffiths, Hut had been hired in expectation of his eventually succeeding professor John N. Bahcall as leader of the astrophysics group, but "was not performing" at the required level. Hut's rebuttal was first, that his work was not inferior but only (to some eyes) unfashionable, and second, that he had been coerced into signing any agreement. Many prominent astrophysicists defended the quality of Hut's work, while others based their support on the importance of academic tenure to creative scholarship. The case was eventually settled out of court, with Hut transferring out of IAS's School of Natural Sciences while being appointed Head of a new Program in Interdisciplinary Studies.

References

Piet Hut Wikipedia


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