Stephon Alexander


place: Trinidad, raised in Bronx, NY

BS Physics 1993 Haverford College

Ph.D. Physics 2000 Brown University
thesis: Topological Defects In Alternative Theories To Cosmic Inflation And String Cosmology; Advisor: Brandenberger, Robert H.

post doctorate, Stanford University Institute for Theoretical Physics (ITP)


In a Bronx, N.Y., high school where the dropout rate was 60 percent, a guidance counselor declined to give Stephon Alexander an application to an Ivy League university. "You won't get in," Alexander recalls the counselor saying. But Alexander (left) proved the counselor wrong. After a BS at Haverford and a Ph.D. in Physics from Brown University, the counselor appears to have gotten it wrong. After his Ph.D., Alexander was at London's Imperial College. Currently he is a member of the SLAC high energy physics group and Stanford's ITP (Institute for Theoretical Physics)

Here is what has been written about Alexander's work in the paper Quantum Gravity and Inflation:

In the past he has published string-and-brane-type research and also in noncommutative geometry (Shawn Majid is at Imperial College) but in the present article is working in an area closely related to Martin Bojowald's loop quantum cosmology. Bojowald also found that loop quantum cosmology generates an inflationary period---as well as eliminating the big bang singularity. Alexander, Malecki, and Smolin refer to this paper of Bojowald "and the references therein"



  1. Stephon Alexander, Justin Malecki, and Lee Smolin. Quantum Gravity and Inflation.
  2. Greg Huey, Stephon Alexander,  and Levon Pogosian,  Quintessence and variation of the fine structure constant in the CMBR.  astro-ph/0110562 , Phys. Rev. D 65, 083001 (2002)
  3. Stephon Alexander (SLAC and Stanford ITP), Robert Brandenberger (Brown), Moshe Rozali (UBC). Non-Topological Inflation from Embedded Defects. hep-th/0302160
  4. Stephon H.S. Alexander, Brane Gas Cosmology, M-theory and Little String Theory. JHEP 0310 (2003) 013 hep-th/0212151
  5. Stephon Alexander, Robert Brandenberger, Joao Magueijo, Non-Commutative Inflation. Phys.Rev. D67 (2003) 081301. hep-th/0108190
  6. Stephon Alexander, Yi Ling, Lee Smolin. A thermal instability for positive brane cosmological constant in the Randall-Sundrum cosmologies. Phys.Rev. D65 (2002) 083503. hep-th/0106097
  7. Stephon H.S. Alexander, Inflation from D-\bar{D} brane annihilation. Phys.Rev. D65 (2002) 023507. hep-th/0105032
  8. Stephon H.S. Alexander, João Magueijo. Non-commutative geometry as a realization of varying speed of light cosmology. hep-th/0104093.
  9. S. Alexander, R. Brandenberger, D. Easson. Brane Gases in the Early Universe. Phys.Rev. D62 (2000) 103509. hep-th/0005212
  10. Stephon H.S. Alexander. On The Varying Speed of Light in a Brane-Induced FRW Universe, JHEP 0011 (2000) 017. hep-th/9912037
  11. Stephon Alexander, Robert Brandenberger, Richard Easther, Andrew Sornborger, On the Interaction of Monopoles and Domain Walls. hep-ph/9903254


VISITORS since opening 5/27/1997

back to front page of Physicists of the African Diaspora

This website was created by and is maintained by
Dr. Scott Williams, Professor of Mathematics
State University of New York at Buffalo

SEARCH the site

CONTACT Dr. Williams