Jorge Pullin

Jorge Pullin (born 1963 in Argentina) is the Horace Hearne Chair in theoretical Physics at the Louisiana State University, known for his work on black hole collisions and quantum gravity.

Biography

Jorge Pullin attended the University of Buenos Aires (electrical engineering) for two years before leaving for Instituto Balseiro in Argentina to finish a M.Sc. in Physics (1986). Then he moved to the University of Cordoba to pursue his Ph.D. which was submitted in 1988 to the Instituto Balseiro; his advisor was Reinaldo Gleiser. He moved to Syracuse University in 1989 and to the University of Utah in 1991 as a postdoc. He joined the faculty of Penn State University in 1993, where he was promoted to associate professor in 1997 and full professor in 2000.In 2001 he moved to Louisiana State University.

Pullin's wife Gabriela González is also a gravitational physics researcher; she and Pullin met at a gravitational physics meeting in Cordoba, Argentina. Pullin and González spent six years living apart while Pullin was at Penn State and González held a position at the Massachusetts Institute of Technology, a situation that was resolved when they both were hired by LSU. [Valerie Jamieson, " [http://physicsworld.com/cws/article/print/10 Love and the two-body problem] ", physicsworld.com, October 31, 2001.]

Awards and Honors

In 1998, the John Simon Guggenheim Memorial Foundation selected Pullin as a Guggenheim Fellow," [http://www.science.psu.edu/alert/PullinGuggenheim6-98.htm Pullin named Guggenheim Fellow] ", PSU Science Alert, June 24, 1998.] and in 2001 he won a Fulbright Fellowship to visit the Universidad de la Republica in Uruguay. ["LSU professor wins Fulbright fellowship", The Advocate (Baton Rouge), October 26, 2001.] In 2001, the American Physical Society honored him with the Edward A. Bouchet Award, recognizing him as "a distinguished minority physicist who has made significant contributions to physics research"." [http://www.science.psu.edu/alert/Pullin12-2000.htm American Physical Society Honors Pullin] ", PSU, News about the Eberly College of Science, December 7, 2000.] He is a corresponding member of the National Academy of Science of Uruguay, the Mexican Academy of Sciences, the Argentinian National Academy of Sciences, and the Latin American Academy of Sciences, and a Fellow of the American Physical Society, of the Institute of Physics, and of the American Association for the Advancement of Science. [ [http://www.aps.org/about/governance/election/pullin.cfm Biographical summary of Pullin] from American Physical Society 2007 election statements.] [" [http://appl003.lsu.edu/unv002.nsf/(NoteID)/49A6A29A3E6FBA7386257274005EA515?OpenDocument Professor Named Corresponding Member of Argentinian National Academy of Sciences] ", LSU News, January 10, 2007.] [" [http://appl003.lsu.edu/unv002.nsf/(NoteID)/A27CD910C5DA852686257234004ECEE0?OpenDocument Two LSU Professors Named AAAS Fellows] ", LSU News, November 28, 2006.] [" [http://appl003.lsu.edu/UNV002.NSF/(NoteID)/4F623B399FEE44EF86256CFB0058C2DC?OpenDocument Pullin elected Fellow of American Physical Society] ", LSU News, April 1, 2003.]

Research

Pullin's book (with R. Gambini) "Loops, Knots, Gauge Theories and Quantum Gravity" [citation|last1=Gambini|first1=Rodolfo|last2=Pullin|first2=Jorge|title=Loops, Knots, Gauge Theories and Quantum Gravity|publisher=Cambridge University Press|year=1996|isbn=0521654750.] surveys the state of the art in loop quantum gravity at the time of its publication. Reviewer Jerzy Lewandowski writes "the book should allow people from outside the loopy circles to gain access in the current state of the art. But most of all it allows experts within this wide field to learn more about the original constructions which were invented and applied in quantization of gravity by Gambini and Pullin themselves." [citation|last=Lewandowski|first=Jerzy|title=Book Review: Loops, Knots, Gauge Theories and Quantum Gravity|journal=General Relativity and Gravitation|volume=30|issue=2|year=1998|pages=339–340|doi=10.1023/A:1018813215317.] Chris Isham adds that "this is a most valuable addition to the scientific literature", [citation|last=Isham|first=Chris|title=Book Reviews: Loops, Knots, Gauge Theories and Quantum Gravity|journal=Bulletin of the London Mathematical Society|volume=31|year=1999|pages=255–256.] while Hugo A. Morales-Técotl calls it "useful for an immersion in the subject." [MathSciNet|id=1439964.]

Pullin's most-cited research paper, on nonstandard optics, [citation|last1=Gambini|first1=Rodolfo|last2=Pullin|first2=Jorge|title=Nonstandard optics from quantum space-time|journal=Phys. Rev. D.|volume=59|year=1999|pages=124021|doi=10.1103/PhysRevD.59.124021.] studies the propagation of light within theories of loop quantum gravity and shows that these theories lead to predictions of behavior different from Maxwell's equations for light propagation in classical physics.Pullin, Gambini, and Bernd Brügman also wrote a series of papers that make an important connection between knot theory and quantum gravity, by showing that the Jones polynomial can be used to solve a quantum form of Einstein's equations. [citation|last1=Brügmann|first1=Bernd|last2=Gambini|first2=Rodolfo|last3=Pullin|first3=Jorge|title=Jones Polynomials for Intersecting Knots as Physical States of Quantum Gravity|journal=Nucl.Phys.|volume=B385|year=1992|pages=587–603|id=arxiv|hep-th|9202018. citation|last1=Brügmann|first1=Bernd|last2=Gambini|first2=Rodolfo|last3=Pullin|first3=Jorge|title=How the Jones polynomial gives rise to physical states of quantum general relativity|journal=General Relativity and Gravitation|volume=25|issue=1|year=1993|pages=1–6|doi=10.1007/BF00756923. citation|last1=Gambini|first1=Rodolfo|last2=Pullin|first2=Jorge|title=Quantum Einstein-Maxwell fields: A unified viewpoint from the loop representation|journal=Phys. Rev. D|volume=47|issue=12|year=1993|doi=10.1103/PhysRevD.47.R5214|pages=R5214–R5218.]

Pullin is also known for a series of papers on the theory and numerical simulation of colliding black holes. [E.g., citation | last1 = Price | first1 = Richard J. | last2 = Pullin | first2 = Jorge | title = Colliding black holes: The close limit | journal = Phys.Rev. Lett. | volume = 72 | issue = 21 | year = 1994 | pages = 3297–3300 | doi = 10.1103/PhysRevLett.72.3297. citation | first1 = Peter | last1 = Anninos | first2 = Richard H. | last2 = Price | first3 = Jorge | last3 = Pullin | first4 = Edward | last4 = Seidel | first5 = Wai-Mo | last5 = Suen | title = Head-on collision of two black holes: Comparison of different approaches | journal = Phys. Rev. D. | volume = 52 | issue = 8 | year = 1995 | pages = 4462–4480 | doi = 10.1103/PhysRevD.52.4462. citation | first1 = Reinaldo J. | last1 = Gleiser | first2 = Carlos O. | last2 = Nicasio | first3 = Richard H. |last3 = Price | first4 = Jorge | last4 = Pullin | title = Colliding Black Holes: How Far Can the Close Approximation Go? | journal = Phys. Rev. Lett. | volume = 77 | issue = 22 | year = 1996 | pages = 4483–4486 | doi = 10.1103/PhysRevLett.77.4483. citation | first1 = Steve | last1 = Brandt | first2 = Randall | last2 = Correll | first3 = Roberto | last3 = Gómez | first4 = Mijan | last4 =Huq | title = Grazing Collisions of Black Holes via the Excision of Singularities | journal = Phys. Rev. Lett. | volume = 85 | issue = 26 | year = 2000 | pages = 5496–5499 | doi = 10.1103/PhysRevLett.85.5496.] Pullin's early work on the subject (including his second most cited paper, from 1994) involves the "close approximation" in which a pair of nearby black holes is treated mathematically as a single non-spherical black hole; since joining LSU his work on this area has been based instead on supercomputer simulation.Another pair of his papers studies a simplified mathematical model of the radiation emitted when a star collapses into a black hole, and shows that it compares favorably to numerical simulations. [citation | first1 = Carsten | last1 = Gundlach | first2 = Richard H. | last2 = Price | first3 = Jorge | last3 = Pullin | title = Late-time behavior of stellar collapse and explosions. I. Linearized perturbations | journal = Phys. Rev. D | volume = 49 | issue = 2 | year = 1994 | pages = 883–889 | doi = 10.1103/PhysRevD.49.883. citation | first1 = Carsten | last1 = Gundlach | first2 = Richard H. | last2 = Price | first3 = Jorge | last3 = Pullin | title = Late-time behavior of stellar collapse and explosions. II. Nonlinear evolution | journal = Phys. Rev. D | volume = 49 | issue = 2 | year = 1994 | pages = 890–899 | doi = 10.1103/PhysRevD.49.890.]

External links

* [http://www.phys.lsu.edu/faculty/pullin/ Pullin's home page] at LSU.

References