About

Nicholas P. Warner

Professor of Physics and Astronomy and Mathematics

Contact Information
E-mail: warner@usc.edu
Phone: (213) 740-1146
Office: SSC 226D

LINKS
Curriculum Vitae
Faculty Profile on Departmental Website
 

Education
B.S. Theoretical Physics, Experimental Physics and Mathematics, Australian National University, Canberra, Australia, 1978
Ph.D. Physics and Mathematics, University of Cambridge, 1982
Sc.D. Physics and Mathematics, University of Cambridge, 2008
 

Postdoctoral Training
Fellow, Trinity College, Cambridge, 09/01/1982-08/31/1988  
Weingart Fellow in Theoretical Physics, Caltech, 09/01/1982-08/31/1985  
 

Academic Appointment, Affiliation, and Employment History

Tenure Track Appointments
Professor of Physics and Mathematics, University of Southern California, 08/01/2003-  
Professor of Physics, University of Southern California, 08/01/1990-  
Associate Professor, MIT, 09/01/1988-08/31/1990  
Assistant Professor, MIT, 01/01/1986-08/31/1988  
 

Non-Tenure Track Appointments
Fellow, CERN, Geneva, Switzerland, 06/01/1987-08/31/1988  
Fellow, Trinity College, Cambridge, 09/01/1982-08/31/1988  
 

Visiting and Temporary Appointments
Scientific Associate, CERN, Geneva, Switzerland, 08/01/2005-07/31/2006  
Scientific Associate, CERN, Geneva, Switzerland, 08/01/1998-07/31/1999  
Scientific Associate, CERN, Geneva, Switzerland, 07/01/1985-01/01/1986  
 

PostDoctoral Appointments
Post-doctoral Fellow, Caltech, 09/01/1982-08/31/1985  
 

Description of Research

Summary Statement of Research Interests
Professor Warner's research areas string theory and field theory and their applications ranging from fundamental interactions in particle physics through to critical phenomena. He is currently working on the quantum structure of black holes and black hole singularities. He is using string theory to resolve some of the apparently paradoxical behavior of black holes in quantum physics.
 

Research Keywords
String theory, field theory, particle physics, black holes and cosmology
 

Affiliations with Research Centers, Labs, and Other Institutions
Institute for Theoretical Physics, Saclay, France, Visiting Scientist
 

Conferences and Other Presentations

Conference Presentations
"Science in Television as Entertainment", 2008 Sloan Summit, Roundtable/Panel, , Renaissance Hotel, Hollywood, American Film Institute (AFI), Invited, 2008-2009   
"Microstate Geometries and Entropy Enhancement", Thirty Years of Mathematical Methods in High Energy Physics, Talk/Oral Presentation, Paper, Kyoto, Japan, Invited, 2007-2008   
"Microstate Geometries and Entropy Enhancement", Cook’s Branch Workshop, Talk/Oral Presentation, , Texas, Texas A&M, Invited, 2007-2008   
"A Review of Flux Compactifications and the Landscape", Cook’s Branch Workshop, 10–13 April, 2007, Talk/Oral Presentation, , Cook's Branch, Texas, Texas A&M, Invited, 2006-2007   
"Geometric Transitions and Foaming Black Holes", Southern California String Seminar, USC, September 29–30, 2006, Talk/Oral Presentation, , USC, Invited, 2006-2007   
"Microstate Geometries", Workshop on Gravitational Aspects of Strings and Branes, 18–22 June 2007, Talk/Oral Presentation, Paper, Granada, Spain, Invited, 2006-2007   
"Foaming Black Holes and Black Rings", GeNeZiSS Conference , Talk/Oral Presentation, , Universite de Neuchatel, Invited, 2005-2006   
"Foaming Black Holes and Black Rings,", Workshop on Black Holes, Black Rings and Topological Strings, Talk/Oral Presentation, , Arnold Sommerfeld Center for Theoretical Physics, Munich, Invited, 2005-2006   
 

Other Presentations
"Microstate Geometries and Entropy Enhancement", Rencontres Théoriciennes, Institut Henri Poincare, Universite Paris 6, 2007-2008   
"Einstein: From Relativity to Unified Field Theories", Einstein Exhibition, Skirball Cultural Center, Los Angeles, 2004-2005   
 

Publications

Book
Bars, I., Nemeschansky, D., Pilch, K., Saleur, H. M., Warner, N. P. (1996). Future Perspectives in String Theory. USA, UK, Singapore: Future Perspectives in String Theory/World Scientific.
 

Book Chapter
Bena, I., Warner, N. P. (2008). Black Holes, Black rings and their Microstates. (Vol. 755). pp. 1-92. Lecture Notes in Physics; Springer.
 

Conference Proceeding
Warner, N. P. (2009). Microstate Geometries and Entropy Enhancement. pp. 228-246. Progress in Theoretical Physics Supplements.
Warner, N. P. (2003). Gauged Supergravity and Holographic Field Theory. In G. W. Gibbons, E. P. S. Shellard, S. J. Rankin (Ed.), 2003. Cambridge University Press.
Warner, N. P. (1996). Supersymmetric, Integrable Boundary Field Theories. 1. pp. 154-163. Nuclear Physics B: Proceedings Supplments Elsevier.
Saleur, H., Warner, N. P. (1995). Lattice models and $N=2$ supersymmetry. In L. Baulieu, V. Dotsenko, V. Kazakov and P. Windey (Ed.), New Developments in String Theory, Conformal Models and Topological Field Theory; NATO ASI Series B, Plenum.
Warner, N. P. (1993). $N=2$ Supersymmetric Integrable Models and Topological Field Theories. In . Gava, K. Narain, S. Randjbar-Daemi, E. Sezgin, Q. Shafi. (Ed.), 9 (1993). ICTP Series in Theoretical Physics, World Scientific.
 

Journal Article
Bena, I., Giusto, S., Ruef, C., Warner, N. P. (2009). Supergravity Solutions from Floating Branes. arXiv:0910.1860 [hep-th].
Bobev, N., Halmagyi, N., Pilch, K., Warner, N. P. (2009). Holographic, N=1 Supersymmetric RG Flows on M2 Branes. Journal of High Energy Physics (JHEP). Vol. 0909, pp. 043.
Bena, I., Giusto, S., Ruef, C., Warner, N. P. (2009). A (Running) Bolt for New Reasons. arXiv:0909.2559 [hep-th].
Bena, I., Giusto, S., Ruef, C., Warner, N. P. (2009). Multi-Center non-BPS Black Holes - the Solution. arXiv:0908.2121 [hep-th].
Bena, I., Bobev, N., Ruef, C., Warner, N. P. (2009). Supertubes in Bubbling Backgrounds: Born-Infeld Meets Supergravity. Journal of High Energy Physics (JHEP). (0907), pp. 106.
Bena, I., Dall’Agata, G., Giusto, S., Ruef, C., Warner, N. P. (2009). Non-BPS black rings and black holes in Taub-NUT. Journal of High Energy Physics (JHEP). (0906), pp. 015.
Bena, I., Wang, C., Warner, N. P. (2008). Plumbing the Abyss: Black Ring Microstates. Journal of High Energy Physics (JHEP). Vol. 07 (2008), pp. 019.
Bena, I., Bobev, N., Warner, N. P. (2008). Spectral Flow, and the Spectrum of Multi-Center Solutions. Phys. Rev. D. Vol. 77, pp. 125025.
Warner, N. P., Bena, I., Bobev, N., Ruef, C. (2008). Entropy Enhancement and Black Hole Microstates. Vol. April 2008, pp. 18 pages. arXiv:0804.4487 [hep-th]
Bena, I., Bobev, N., Warner, N. P. (2007). Bubbles on Manifolds with a U (1) Isometry. Journal of High Energy Physics. Vol. 0708, pp. 004.
Bena, I., Warner, N. P. (2007). The Foaming Three-Charge Black Hole. Physical Review D/American Physical Society. Vol. Vol. 75, pp. 124026.
Govindarajan, S., Jockers, H., Lerche, W., Warner, N. P. (2007). Tachyon Condensation on the Elliptic Curve. Nuclear Physics B/Elsevier. Vol. Vol. 765, pp. (2007) 240–286.
Bena, I., Wang, C., Warner, N. P. (2006). Mergers and typical black hole microstates. Journal of High Energy Physics. Vol. 0611, pp. 042.
Halmagyi, N., Pilch, K., Roemelsberger, C., Warner, N. P. (2006). The complex geometry of holographic flows of quiver gauge theories. (0609), pp. 063.
Bena, I., Warner, N. P. (2006). Bubbling supertubes and foaming black holes. Physical Review D/American Physical Society. Vol. 74, pp. 066001.
Pilch, K., Halmagyi, N., Roemelsberger, C., Warner, N. P. (2006). Holographic duals of a family of N = 1* fixed points. Journal of High Energy Physics. Vol. 0608, pp. 083.
Warner, N. P. (2006). Sliding rings and spinning holes. Journal of High Energy Physics. Vol. 0605, pp. 075.
Halmagyi, N., Romelsberger, C., Warner, N. P. (2006). Inherited Duality and Quiver Gauge Theory. Advances in Theoretical and mathematical Physics/ International Press. Vol. 2004 (10), pp. 159–179.
Gowdigere, C. N., Warner, N. P. (2006). Holographic Coulomb branch flows with N = 1 supersymmetry. Journal of High Energy Physics. Vol. 0603, pp. 049.
Bena, I., Wang, C., Warner, N. P. (2006). Black rings with varying charge density. Journal of High Energy Physics/Institute of Physics. Vol. 2006 (03), pp. 015.
Bena, I., Warner, N. P. (2005). One Ring to Rule Them All ... and in the Darkness Bind Them?. Advances in Theoretical and Mathematical Physics/International Press. Vol. Vol 9, pp. pp 667–701.
Bena, I., Kraus, P., Warner, N. P. (2005). Black Rings in Taub-NUT. Physical Review D/American Physical Society. Vol. D72, pp. 084019.
Bena, I., Warner, N. P. (2004). A harmonic family of dielectric flow solutions with maximal supersymmetry. Journal of High Energy Physics/Institute of Physics. Vol. 2004 (12), pp. 021.
Pope, C. N., Warner, N. P. (2004). A dielectric flow solution with maximal supersymmetry. Journal of High Energy Physics/Institute of Physics. Vol. 2004 (04), pp. 011.
Pilch, K., Warner, N. P. (2004). N = 1 Supersymmetric Solutions of IIB supergravity from Killing Spinors. Theoretical Physics Archive.
Nemeschansky, D., Warner, N. P. (2004). A Family of M-theory Flows with Four Supersymmetries. Theoretical Physics Archive.
Kennaway, K. D., Warner, N. P. (2004). Effective Superpotentials, Geometry and Integrable Systems. Advances in Theoretical and mathematical Physics/ International Press. Vol. 2004 (8), pp. 141– 175.
Pilch, K., Warner, N. P. (2003). Generalizing the N=2 supersymmetric RG flow solution of IIB supergravity. Nuclear Physics B/Elsevier. Vol. 675 (1-2), pp. 99-121.
Gowdigere, C. N., Warner, N. P. (2003). Flowing with eight supersymmetries in M-theory and F-theory. Journal of High Energy Physics/Institute of Physics. Vol. 2003 (12), pp. 048.
Aganagic, M., Intriligator, K., Vafa, C., Warner, N. P. (2003). The Glueball Superpotential. Advances in Theoretical and mathematical Physics/ International Press. Vol. 2004 (7), pp. 1045-1101.
Gowdigere, C. N., Warner, N. P. (2003). Flowing with eight supersymmetries in M-theory and F-theory. Journal of High Energy Physics (JHEP).
Gowdigere, C., Nemeschansky, D., Warner, N. P. (2003). Supersymmetric Solutions with Fluxes from Algebraic Killing Spinors. Advances in Theoretical and mathematical Physics/ International Press. Vol. 2004 (7), pp. 787-806.
Warner, N. P. (2003). Penrose limits of RG fixed points and PP-waves with background fluxes. Advances in Theoretical and Mathematical Physics/International Press. Vol. Vol 6 (2003), pp. 597 - 617. hep-th/0205314
Corrado, R., Gunaydin, M., Warner, N. P., Zagermann, M. (2002). Orbifolds and flows from gauged supergravity. Physical Review D/American Physical Society. Vol. 65, pp. 125024.
Corrado, R., Pilch, K., Warner, N. P. (2002). An N=2 supersymmetric membrane flow. Nuclear Physics B; Elsevier. Vol. 629 (2002), pp. 74–96.
Khavaev, A., Warner, N. P. (2001). An N-1 supersymmetric Coulomb flow in IIB supergravity. Physics Letters B; Elsevier. Vol. 522 (2001), pp. 181-188.
Warner, N. P. (2001). Holographic renormalization group flows: the view from ten dimensions. Classical and Quantum Gravity/Institute of Physics. Vol. 18, pp. 3159–3170.
Eguchi, T., Warner, N. P., Yang, S. (2001). ADE singularities and coset models. Nuclear Physics B; Elsevier.
Pilch, K., Warner, N. P. (2001). N=2 supersymmetric RG flows and the IIB dilaton. Nuclear Physics B; Elsevier. Vol. 594 (2001)
Khavaev, A., Warner, N. P. (2000). A class of N=1 supersymmetric RG flows from five-dimensional N=8 supergravity. Physics Letters B; Elsevier. Vol. 495 (2000), pp. 215-222.
Khavaev, A., Pilch, K., Warner, N. P. (2000). New vacua of gauged N=8 supergravity in five dimensions. Physics Letters B; Elsevier. Vol. 487 (2000), pp. 14-21.
Pilch, K., Warner, N. P. (2000). A new supersymmetric compactification of chiral IIB supergravity. Physics Letters B; Elsevier. Vol. 487 (2000), pp. 22-29.
Freedman, D. Z., Gubser, S. S., Pilch, K., Warner, N. P. (2000). Continuous distributions of D3-branes and gauged supergravity. Journal of High Energy Physics (JHEP). Vol. 07 (2000)
Pilch, K., Warner, N. P. (2000). N=1 Supersymmetric Renormalization Group Flows from IIB Supergravity. Advances in Theoretical and Mathematical Physics/International Press. Vol. 4 (2000), pp. 627-677.
Warner, N. P. (2000). Renormalization-group flows from five-dimensional supergravity. Classical and Quantum Gravity/Institute of Physics. Vol. 17, pp. 1287–1297.
Lerche, W., Stieberger, S., Warner, N. P. (1999). Quartic Gauge Couplings from K3 Geometry. Advances in Theoretical and Mathematical Physics/International Press. Vol. 3 (1999), pp. 1575-1611.
Lerche, W., Stieberger, S., Warner, N. P. (1999). Prepotentials from Symmetric Products. Advances in Theoretical and Mathematical Physics/International Press. Vol. 3 (1999), pp. 1613-1634.
Freedman, D. Z., Gubser, S. S., Pilch, K., Warner, N. P. (1999). Renormalization Group Flows from Holography; Supersymmetry and a c-Theorem. Vol. 3 (1999), pp. 363-417.
Minahan, J. A., Nemeschansky, D., Warner, N. P. (1998). Instanton expansions for mass deformed N = 4 super Yang-Mills theories. Nuclear Physics B; Elsevier. Vol. 528 (1998), pp. 109-132.
Minahan, J. A., Nemeschansky, D., Vafa, C., Warner, N. P. (1998). E-strings and N = 4 topological Yang-Mills theories. Nuclear Physics B; Elsevier. Vol. 527 (1998), pp. 581-623.
Minahan, J. A., Warner, N. P. (1998). Quark potentials in the Higgs phase of large N supersymmetric Yang-Mills theories. Journal of High Energy Physics/Institute of Physics. Vol. 1998 (06), pp. 005.
Lerche, W., Warner, N. P. (1998). Exceptional SW geometry from ALE fibrations. Physics Letters B; Elsevier. Vol. 423 (1998), pp. 79-86.
Lerche, W., Warner, N. P. (1998). Exceptional SW Geometry from ALE Fibrations. Physics Letters B; Elsevier. Vol. 423 (1998), pp. 79-86.
Minahan, J. A., Nemeschansky, D., Warner, N. P. (1997). Investigating the BPS spectrum of non-critical En strings. Nuclear Physics B; Elsevier. Vol. 508 (1997), pp. 64-106.
Minahan, J. A., Nemeschansky, D., Warner, N. P. (1997). Partition Functions for BPS States of the Non-Critical E8 String. Advances in Theoretical and Mathematical Physics/International Press. Vol. 1 (1998), pp. 167-183.
Schulze, J., Warner, N. P. (1997). BPS Geodesics in N=2 Supersymmetric Yang-Mills Theory. Nuclear Physics B; Elsevier. Vol. 498 (1997), pp. 101-118.
Lerche, W., Mayr, P., Warner, N. P. (1997). Non-Critical Strings, Del Pezzo Singularities And Seiberg-Witten Curves. Nuclear Physics B; Elsevier. Vol. 499 (1997), pp. 125-148.
Klemm, A., Lerche, W., Mayr, P., Vafa, C., Warner, N. P. (1996). Self-Dual Strings and N=2 Supersymmetric Field Theory. Nuclear Physics B; Elsevier. Vol. 477 (1996), pp. 746-766.
Martinec, E. J., Warner, N. P. (1996). Integrable systems and supersymmetric gauge theory. Nuclear Physics B; Elsevier. Vol. 459 (1996), pp. 97-112.
Warner, N. P. (1995). Supersymmetry in Boundary Integrable Models. Nuclear Physics B; Elsevier. Vol. 450 (1995), pp. 663-694.
Nemeschansky, D., Warner, N. P. (1995). The Refined Elliptic Genus and Coulomb Gas Formulations of $N=2$ Superconformal Coset Models. Nuclear Physics B; Elsevier. Vol. 442 (1995), pp. 623-654.
Saleur, H., Skorik, S., Warner, N. P. (1995). The boundary sine-Gordon theory: classical and semi-classical analysis. Nuclear Physics B; Elsevier. Vol. 441 (1995), pp. 421-436.
Lerche, W., Warner, N. P. (1995). On the Algebraic Structure of Gravitational Descendants in CP(n-1) Coset Models. Physics Letters B; Elsevier. Vol. 343 (1995), pp. 87-93.
Fendley, P., Saleur, H., Warner, N. P. (1994). Exact solution of a massless scalar field with a relevant boundary interaction. Nuclear Physics B; Elsevier. Vol. 430 (1994, pp. 577-596.
Nemeschansky, D., Warner, N. P. (1994). Refining the Elliptic Genus. Physics Letters B; Elsevier. Vol. 329 (1994), pp. 53-60.
Nemeschansky, D., Warner, N. P. (1994). Off-Critical Lattice Analogues of $N=2$ Supersymmetric Quantum Integrable Models. Nuclear Physics B; Elsevier. Vol. 413 (1994), pp. 629-652.
Schellekens, A. N., Warner, N. P. (1986). Conformal subalgebras of Kac-Moody algebras. Physical Review D/American Physical Society. Vol. 34 (10), pp. 3092 - 3096.
 

Other
Lerche, W., Mayr, P., Warner, N. P. (2002). N = 1 Special Geometry, Mixed Hodge Variations and Toric Geometry. hep-th/0208039.
Lerche, W., Mayr, P., Warner, N. P. (2002). Holomorphic N = 1 Special Geometry of Open-Closed Type II Strings. hep-th/0207259.
Martinec, E., Warner, N. P. (1995). Integrability in N=2 Gauge Theory: A Proof. Preprint Archive.
 
 

New Courses Developed
Conformal Field Theory, Physics, A completely new, advanced graduate class aimed across physics disciplines from particle physics to condensed matter physics and quantum computing., 2008-2009   
Complex Geometry, Physics, Approximately 12 hours of lectures given to my research group to broaden the education of our graduate students., 10/01/2007-12/01/2007  
 

Honors and Awards
Doctor of Science (ScD), University of Cambridge, 2009-  
USC Associates Award For Creativity In Research And Scholarship, 2007-2008  
Gamma Sigma Alpha Professor of the Year, 2000-2001  
USC or School/Dept Award for Teaching, General Eductaion Teaching Award, 1998-1999   
USC Raubenheimer Outstanding Senior Faculty Award, 1997  
Sloan Research Fellowship Recipient, 8/1988-7/1992  
 

Service to the University

Committees
Member, Continuing Education Faculty Advisory Committee, 2008-  
Member, College Committee on Undergraduate Curriculum, 2006-  
Member, Physics Department Executive Committee, 2006-  
 

Service to the Profession

Conferences Organized
Co-Organizer, Recent Advances in Black Hole Physics in String Theory, Aspen Center for Physics, 2006-2007   
 

Editorships and Editorial Boards
Advances in Theoretical and Mathematical Physics, Advances in Theoretical and Mathematical Physics, 06/1997-  
 

Media, Alumni, and Community Relations
2008 Sloan Summit Panel for the American Film Institute (AFI) on Science in Television as Entertainment, 2008-2009   
Talk: Einstein: From Relativity to Unified Field Theories at Skirbal l Cultural Center, 2004-2005   
 
 
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