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Martin Bojowald

Martin Bojowald

Main Content

  • Professor of Physics
304A Whitmore
Email: bojowald [ AT ] gravity [ DOT ] psu [ DOT ] edu
Phone: (814) 865-3502


  1. Aachen University (Ph.D. With Distinction), 2000
  2. Aachen University (Diploma, With Distinction), 1998


Gravitational Physics & Cosmology
  • Theoretical

Honors and Awards

  • 2011 Faculty Scholar Medal (Physical Sciences), Penn State
  • 2010 and 2011 Named one of the Most Valued Elsevier Reviewers
  • 2010 Outstanding Referee, APS
  • 2009 Teaching Award, Penn State Society of Physics Students
  • 2008 NSF CAREER Award
  • 2007 Xanthopoulos prize, International Society on General Relativity and Gravitation
  • 2005 Selected for a portrait in Nature
  • 2003 First Award, Gravity Research Foundation Essay Competition
  • 1998–2000 Fellow of the DFG-Graduate College
  • 1995–1998 Fellow of the German Merit Foundation

Selected Publications

  1. Bojowald, Martin. "Back to the beginning of quantum spacetime." Physics Today 66 (2013): 35.
  2. Bojowald, Martin, Golam Mortuza Hossain, Mikhail Kagan, and Casey Tomlin. "Quantum matter in quantum space-time." arXiv preprint arXiv:1302.5695(2013).
  3. Bojowald, Martin, and George M. Paily. "Deformed general relativity." Physical Review D 87, no. 4 (2013): 044044.
  4. Bojowald, Martin, and George M. Paily. "Deformed general relativity and effective actions from loop quantum gravity." Physical Review D 86, no. 10 (2012): 104018.
  5. Bojowald, Martin, and George M. Paily. "A no-singularity scenario in loop quantum gravity." Classical and Quantum Gravity 29, no. 24 (2012): 242002.
  6. Bojowald, Martin. "Loop quantum gravity and cosmology." Foundations of Space and Time: Reflections on Quantum Gravity (2012): 211.
  7. Bojowald, Martin, and Achim Kempf. "Generalized uncertainty principles and localization of a particle in discrete space." Physical Review D 86, no. 8 (2012): 085017.
  8. Bojowald, Martin. "Relativity: A twist on relativistic astrophysics." Nature Physics 7, no. 3 (2011): 188-189.
  9. Ashtekar, Abhay, Martin Bojowald, and Jerzy Lewandowski. "Mathematical structure of loop quantum cosmology." Advances in Theoretical and Mathematical Physics 7, no. 2 (2003): 233-268.
  10. Bojowald, Martin. "Absence of a singularity in loop quantum cosmology." Physical Review Letters 86, no. 23 (2001): 5227-5230.

Research Interests

The research of my group at Penn State, as well as in several other collaborations with colleagues elsewhere, circles around different aspects whose common theme is their relevance for formulations of quantum gravity. The nature of the field allows a broad range of projects, some of which focus more on mathematical aspects and others on physical applications. Moreover, general issues of quantum systems play a role, as well as problems specific to general relativity or, more generally, constrained systems.