Nicholas 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

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

Research Keywords

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