Curriculum Vitae, C. B. Thorn


Education:
B.S. (Physics) Massachusetts Institute of Technology 1968
M.A. (Physics) University of California, Berkeley 1969
Ph.D. University of California, Berkeley 1971
(Theoretical Elementary Particle Physics)

Professional Employment:
Interim Postdoctoral position, Lawrence Berkeley Laboratory, Berkeley, 1971
Visiting Scientist, CERN, TH-Division, Geneva, 1972
Research Associate, Massachusetts Institute of Technology, January-June, 1973
Assistant Professor, Massachusetts Institute of Technology, July, 1973-June, 1978
Visitor at the Department of Applied Mathematics and Theoretical Physics at Cambridge University, Cambridge, England, March-June, 1976
Associate Professor, M.I.T., July, 1978-September, 1980
Professor of Physics, University of Florida, September, 1980-present
Professeur Invite, Ecole Normale Superieure, Universite de Paris, France, January-May, 1985
Member, Institute for Advanced Study, Princeton, New Jersey, September, 1986-June, 1987
Participant in the Superstring Program at the Institute for Theoretical Physics, University of California at Santa Barbara, September and December, 1986.
Visiting Professor at DAMTP, Cambridge University, Cambridge, England, January - July, 1991.
Invited Participant in the Program on Nonperturbative String Theory at the Institute for Theoretical Physics, University of California at Santa Barbara, May and June, 1993.
Visiting Professor, Department of Physics, University of California, Berkeley CA, August 2001-December 2001.
Member, Institute for Advanced Study, Princeton, New Jersey, January 2002-May 2002.
Member, Institute for Advanced Study, Princeton, New Jersey, January 2009-July 2009.

Professional Societies:
American Physical Society, Fellow

Honors and Awards:
Jesse W. Beams Medal for Significant Research in Physics, awarded by the Southeastern Section of the American Physical Society, November 2005.
Visiting Research Professorship from the Miller Institute for Basic Research, University of California, Berkeley, August 2001 - December 2001.
Guest Research Fellowship from the Royal Society, London, January - July, 1991
John Simon Guggenheim Fellow, August 1986-August 1987
Alfred P. Sloan Foundation Fellow, 1974-1978
NSF Postdoctoral Fellow at CERN, Geneva, 1972
NSF Graduate Fellow, 1968-1971
Woodrow Wilson Designate, 1968

Publications:
1. Linear Dependences in the Operator Formalism of Fubini, Veneziano, and Gordon, Phys. Rev. D1, 1693-1696 (1970).
2. Unitary Nonplanar Closed Loops, (with M. Kaku), Phys. Rev. D1, 2860-2869 (1970).
3. Unitary Nonplanar Closed Loops, II, Phys. Rev. D2, 1071-1080 (1970).
4. Eliminating Spurious States from the Dual Resonance Model, (with R. C. Brower), Nuclear Physics B31, 163-182 (1971).
5. Dual Model of Pions with No Tachyon, (with M. B. Halpern), Phys. Letters, 35B, 441-442 (1971).
6. Reformulation of the Dual Pion Model, (with A. Neveu and J. H. Schwarz), Physics Letters, 35B, 529-532 (1971).
7. Embryonic Dual Model for Pions and Fermions, Phys. Rev. D4, 1112-1116 (1971).
8. The Two Faces of a Dual Pion-Quark Model. II. Fermions and Other Things, (with M. B. Halpern), Phys. Rev. D4, 3084-3088 (1971).
9. Two Particle Discontinuities of One Loop Graphs in the Dual Resonance Model, (with J. A. Shapiro), Phys. Rev. D5, 927-931 (1972).
10. Chirality in Dual Resonance Models, (with A. Neveu), Phys. Rev. Letters 27, 1758-1760 (1971).
11. Compatibility of the Dual Pomeron with Unitarity and the Absence of Ghosts in Dual Resonance Models, (with P. Goddard), Phys. Letters, 40B, 235-238 (1972).
12. Lorentz Covariance and the Physical States in Dual Resonance Models, (with P. Goddard and C. Rebbi), Nuovo Cimento, 12A, 425-450 (1972).
13. Quantum Dynamics of a Massless Relativistic String, (with P. Goddard, J. Goldstone, and C. Rebbi), Nuclear Physics B56, 109-135 (1973).
14. Making the Massless String Massive, (with A. Chodos), Nuclear Physics B72, 509-522 (1974).
15. A New Extended Model of the Hadron, (with A. Chodos, R. L. Jaffe, K. Johnson and V. F. Weisskopf), Phys. Rev. D9, 3471-3495 (1974).
16. Baryon Structure in the Bag Theory, (with A. Chodos, K. Johnson and R. L. Jaffe), Phys. Rev. D10, 2599-2604 (1974).
17. Electromagnetic Self-Energy of Confined Massless Quarks, (with A. Chodos), Phys. Letters, 53B, 359-361 (1974).
18. Scattering of One Dimensional Bags, (with M. Ulehla), Phys. Rev. D11, 3532-3537 (1975).
19. Chiral Invariance in the Bag Theory, (with A. Chodos), Phys. Rev. D12, 2733-2743 (1975).
20. Electromagnetic Self-Energy of Quarks Confined to a Sphere, (with A. Chodos), Nuclear Physics, B104, 21-31 (1976).
21. Stringlike Solutions of the Bag Model, (with K. Johnson), Phys. Rev. D13, 1934-1939 (1976).
22. Lattice Approach to String Theory, (with Roscoe Giles), Phys. Rev. D16, 366-386 (1977).
23. On the Derivation of Dual Models from Field Theory, Phys. Letters, 70B, 85-87 (1977).
24. On the Derivation of Dual Models from Field Theory II, Phys. Rev. D17, 1073-1084 (1978).
25. String Representation for a Field Theory with Internal Symmetry, (with Roscoe Giles and Larry McLerran), Phys. Rev. D17, 2058-2073 (1978).
26. The Spectrum of QCD in the Limit of an Infinite Number of Colors at Fixed Coupling, (with Richard Brower and Roscoe Giles), Phys. Rev. D18, 484-500 (1978).
27. Quark Confinement in the Infinite Momentum Frame, Phys. Rev. D19, 639-650 (1979).
28. Fock-Space Description of the 1/N$_c$ Expansion of Quantum Chromodynamics, Phys. Rev. D20, 1435-1441 (1979).
29. Asymptotic Freedom in the Infinite Momentum Frame, Phys. Rev. D20, 1934-1940 (1979).
30. Reformulation of Chiral Dynamics in Infinite N$_c$ Quantum Chromodynamics, Phys. Rev. D23, 439-450 (1981).
31. Infinite N$_c$ QCD at Finite Temperature: Is There an Ultimate Temperature?, Phys. Letters, 99B, 458-464 (1981).
32. New Narrow Resonance Models with Non-Linear Regge Trajectories, Phys. Rev. D24, 2959-2962 (1981).
33. Conformally Invariant Quantization of the Liouville Theory, (with T. L. Curtright), Phys. Rev. Lett. 48, 1309-1312 (1982).
34. Quantum Backlund Transformation for the Liouville Theory, (with E. Braaten and T. Curtright), Phys. Lett. 118B, 115-120 (1982).
35. An Exact Operator Solution of the Quantum Liouville Field Theory, (with E. Braaten and T. Curtright), Annals of Physics 147, 365-415 (1983).
36. The Effective Potential in Quantum Mechanics, (with T. L. Curtright), Journal of Mathematical Physics, 25, 541-548 (1984).
37. A Class of Conformally Invariant Quantum Field Theories (with E. Braaten, T. Curtright, and G. Ghandour), Phys. Lett. 125B, 301-304 (1983).
38. Nonperturbative Weak-Coupling Analysis of the Liouville Quantum Field Theory, (with E. Braaten, T. Curtright, and G. Ghandour), Phys. Rev. Lett. 51, 19-22 (1983).
39. The S-Matrix and the Effective Potential for the Liouville Quantum Field Theory, Phys. Lett. 128B, 207-212 (1983).
40. Nonperturbative Weak-Coupling Analysis of the Quantum Liouville Field Theory, (with E. Braaten, T. Curtright and G. Ghandour), Annals of Physics, 153, 147-201 (1984).
41. Computing the Kac Determinant Using Dual Model Techniques and More About the No-Ghost Theorem, Nucl. Phys. B248, 551-569 (1984).
42. Comments on Covariant Formulations of String Theories, Physics Letters, 159B, 107-110 (1985).
43. Theory of Interacting Relativistic Strings (UFTP-85-8), Nuclear Physics, B263, 493-556 (1986).
44. Equivalence of the Light-Cone Formulation and the Gauge-Invariant Formulation of String Dynamics (SLAC-PUB-3801), (with M. Peskin), Nuclear Physics B269 (1986) 509-.
45. Symmetry Patterns in the Mass Spectra of Dual String Models, (with T. Curtright), Nuclear Physics B274 (1986) 520-558.
46. Spin Content of the Bosonic String, (with J. Goldstone and T. Curtright), UFTP-86-3, Phys. Letters B175 (1986) 47-52.
47. Classical Trajectories of Strings with Rigidity, (with T. Curtright, G. Ghandour and C. Zachos), UFTP-86-6 Physical Review Letters, 57 (1986) 799-802.
48. The Vertex Function in Witten's Formulation of String Field Theory, (with E. Cremmer and Adam Schwimmer), UFTP-86-8, Phys. Letters B179 (1986) 57-65.
49. Spin Content of String Models, (with T. Curtright and G. Ghandour), UFTP-86-10, Physics Letters B182 (1986) 45.
50. A Detailed Study of the Physical State Conditions in Covariantly Quantized String Theories, Nuclear Physics B286 (1987) 61-77.
51. Perturbation Theory for Quantized String Fields, Nuclear Physics B287 (1987) 61-92.
52. BRST Invariant Transitions Between Open and Closed Strings, (with J. Shapiro), Phys. Rev. D36 (1987) 432-464.
53. Closed String-Open String Transitions and Witten's String Field Theory, (with J. Shapiro), Phys. Lett. B194 (1987) 43-48.
54. The Nonplanar One-Loop Amplitude in Witten's String Field Theory, (with D. Freedman, S. Giddings, and J. Shapiro), Nuclear Physics B298 (1988) 253-322.
55. String Field Theory, Physics Reports 175 (1989) 1-101.
56. Orientation of the QCD Vacuum, (with P. Sikivie), Physics Letters B234 (1990) 132-134.
57. Superstring Field Theory, (with C. Preitschopf and S. Yost), Nuclear Physics B337 (1990) 363-433.
58. Subcritical Dual Models as Subcritical Strings, Phys. Lett. 242B (1990) 364.
59. Action Principle for Subcritical String Fields (with C. Preitschopf), Nuclear Phys. B349 (1991) 132-158.
60. The Backlund Transform for the Liouville Field in a Curved Background, (with C. Preitschopf), Phys. Lett. B250 (1990) 79.
61. Continuing Between Closed and Open Strings, (with M. B. Green), Nuclear Physics \bf B367 (1991) 462.
62. Quark-Antiquark Regge Trajectories in large $N_c$ $QCD$, (with M. McGuigan), Phys. Rev. Let. \bf 69 (1992) 1312, hep-ph/9205211.
63. The Reggeon Trajectory in Exclusive and Inclusive Large Momentum Transfer Reactions, (with S. Brodsky and W.-K. Tang), Physics Letters, B318 (1993) 203-211.
64. Interpretation of High Energy String Scattering in Terms of String Configurations, (with S. Carbon), UFIFT-HEP-94-2, Phys. Rev. \bf D49 (1994) R6264-R6268,hep-th/9401111.
65. Calculating the Rest Tension for a Polymer of String Bits, UFIFT-HEP-94-8, hep-th9407169, Phys. Rev. D51 (1995) 647-664.
66. String Bit Models for Superstring (with O. Bergman), UFIFT-HEP-95-8, hep-th 9506125, Phys. Rev. D52 (1995) 5980.
67. Super-Galilei Invariant Field Theories in 2+1 Dimensions (with O. Bergman), UFIFT-HEP-95-12, hep-th 9507007 Phys. Rev. D52 (1995) 5997
68. Universality and Clustering in 1$+$1 Dimensional Superstring-Bit Models (with O. Bergman), UFIFT-HEP-95-31, eprint hep-th/9512107, Phys. Rev. Lett. \bf 76 (1996) 2214-2217.
69. The Size of a Polymer of String-Bits: A Numerical Investigation (with O. Bergman), UFIFT-HEP-97-04, eprint hep-th/9702068, Nucl. Phys. \bf B502 (1997) 309-324.
70. Supersymmetric Quantum Mechanics for String-Bits, UFIFT-HEP-97-20, eprint hep-th/9707048, Phys. Rev. \bf D56 (1997) 6619-6628.
71. Quantum Newtonian Dynamics on a Light Front, UFIFT-HEP-98-16, hep-th/9807151, Phys. Rev. \bf D59 (1999) 025005.
72. Bag Model for a Link in a Closed Gluonic Chain, UFIFT-HEP-98-26, hep-th/9810066, Phys. Rev. \bf D59 (1999) 116011.
73. Defining the Force between Separated Sources on a Light Front (with J. Rozowsky), UFIFT-HEP-99-1, hep-th/9902145, Phys. Rev. \bf D60 (1999) 045001.
74. QCD Fishnets Revisited (with K. Bering and J. Rozowsky), UFIFT-HEP-99-15, Published in Phys. Rev. \bf D61 (2000) 045007, e-Print Archive: hep-th/9909141
75. Spontaneous Symmetry Breaking at Infinite Momentum without P+ Zero Modes (with J. Rozowsky), UF-IFT-HEP-00-6, e-Print Archive: hep-th/0003301, Phys. Rev. Lett. \bf 85 (2000) 1614.
76. Analysing the 't Hooft Model on an $x^+-p^+$ Lattice (with J. Rozowsky),UFIFT-HEP-00-17, hep-th/0007019 Phys. Rev. \bf D63 (2001) 085006.
77. Light-cone Superstring in AdS Space-time, R.R. Metsaev, C.B. Thorn and A.A. Tseytlin, UFIFT-HEP-00-26, hep-th/0009171, Nuclear Physics \bf B596 (2001) 151-184.
78. A Six Vertex Model on a Fishnet. Charles B. Thorn. UFIFT-HEP-00-32, hep-th/0012006, Physical Review \bf D63 (2001) 105009.
79.A Worldsheet Description of Large $N_c$ Quantum Field Theory, (with K. Bardakci), Nucl. Phys. \bf B626 (2002) 287-306, e-Print Archive: hep-th/0110301.
80.Large N Matrix Mechanics on the Light Cone, (with M. B. Halpern), Int. J. Mod. Phys. \bf A17 (2002) 1517-1542, e-Print Archive: hep-th/0111280.
81. Gluon Chain Model of the Confining Force, (with J. Greensite), JHEP 02 (2002) 014, e-Print Archive: hep-ph/0112326.
82. ``A worldsheet description of planar Yang-Mills theory,'' Nucl.\ Phys.\ B \bf 637 (2002) 272, e-Print Archive: hep-th/0203167.
83. ``One loop calculations in gauge theories regulated on an x+p+ lattice,'' (with S. Gudmundsson), Phys.\ Rev.\ D \bf 66 (2002) 076001 [arXiv:hep-th/0203232].
84. ``Liouville perturbation theory,'' Phys.\ Rev.\ D \bf 66 (2002) 027702 [arXiv:hep-th/0204142].
85. ``A mean field approximation to the world sheet model of planar phi**3 field theory,'' (with K. Bardakci), Nucl. Phys. \bf B652 (2003) 196-228, arXiv:hep-th/0206205.
86. ``BT Worldsheet for Supersymmetric Gauge Theories, (with S. Gudmundsson and T. Tran),'' Nucl. Phys. \bf B649 (2003) 3-38, arXiv: hep-th/0206205.
87. ``An Improved Mean Field Approximation on the Worldsheet for Planar $\phi^3$ Theory,'' (with K. Bardakci), Published in Nucl. Phys. B661:235-256, 2003, arXiv: hep-th/0212254.
88. ``The Fishnet as antiferromagnetic phase of world sheet Ising spins,'' (with Tuan A. Tran), UFIFT-HEP-03-17, Jul 2003. Published in Nucl.Phys.B677:289-353,2004, e-Print Archive: hep-th/0307203
89. ``Renormalization of quantum fields on the lightcone worldsheet. 1. Scalar fields, '' UFIFT-HEP-04-07, May 2004, Published in Nucl.Phys.B699:427-452,2004 e-Print Archive: hep-th/0405018
90. Notes on one-loop calculations in light-cone gauge. UFIFT-HEP-05-16, Jul 2005. 46pp. e-Print: hep-th/0507213
91. ``Scattering of glue by glue on the light-cone worldsheet. I. Helicity non-conserving amplitudes,'' (with D. Chakrabarti and J. Qiu), Jul 2005. 31pp. Published in Phys.Rev.D72:065022,2005 e-Print Archive: hep-th/0507280
92. `` Scattering of glue by glue on the light-cone worldsheet. II. Helicity conserving amplitudes. (with D. Chakrabarti and J. Qiu), UFIFT-HEP-06-01, Feb 2006. 60pp, Published in Phys.Rev.D74:045018,2006. e-Print: hep-th/0602026.
93. `` Dynamics of flux tubes in large N gauge theories,'' (with I.R. Klebanov and Juan M. Maldacena), PUPT-2193, UFIFT-HEP-06-5, Feb 2006. 21pp. Published in JHEP 0604:024,2006 e-Print Archive: hep-th/0602255
94. `` String/Flux Tube Duality on the Lightcone,'' (with R. C. Brower and C-I Tan), UFIFT-HEP-06-07, BROWN-HET-1464, Published in Phys. Rev. D73:124037, 2006. e-Print: hep-th/0603256.
95.``1- Brane Sources for the Lightcone Worldsheet: Q-branion - anti-Q-branion Scattering to One Loop,'' Published in Phys.Rev. D76 (2007) 106009 e-Print: arXiv:0707.3228 [hep-th].
96.`` Classical Worldsheets for String Scattering on Flat and AdS Spacetime,'' (with Charles M. Sommerfield, UFIFT-HEP-08-6, May 2008. 26pp. Published in Phys.Rev.D78:046005,2008. e-Print: arXiv:0805.0388 [hep-th].
97.``Subcritical String and Large N QCD, UFIFT-HEP-08-12, Aug 2008. 19pp. Published in Phys.Rev.D78:085022,2008. e-Print: arXiv:0808.0458 [hep-th]
98.``Nonabelian D-branes, Open Strings, and Gauge Theory, UFIFT-HEP-08-15, Sep 2008. 14pp. Published in Phys.Rev.D78:106008,2008. e-Print: arXiv:0809.1085 [hep-th].
99.``Summing Planar Open String Loops on a Worldsheet Lattice with Dirichlet and Neumann Boundaries'', UFIFT-HEP-09-05, Jun 2009, 17pp. Published in Phys.Rev.D80:086010,2009. e-Print: arXiv:0906.3742 [hep-th]
100.``Digitizing the Neveu-Schwarz Model on the Lightcone Worldsheet,'' May 2010. Published in Phys.Rev. D82 (2010) 065009 e-Print: arXiv:1005.2924 [hep-th]
101. ``Resolution of Infrared Divergences in Gluon-Gluon Scattering Regulated on a Lightcone Worldsheet Lattice,'' Oct 2010, Published in Phys. Rev. D82 (2010) 125021 e-Print: arXiv:1010.5998 [hep-th]
102. ``The Open String Regge Trajectory and Its Field Theory Limit,'' (with Francisco Rojas), May 2011. Published in Phys. Rev. D84 (2011) 026006 e-Print: arXiv:1105.3967 [hep-th].
103. ``Improved Proof of the No-ghost Theorem for Fermion States of the Superstring,'' Oct 2011, published in Nuclear Physics B864 (2012) 285-295. e-Print: arXiv:1110.5510 [hep-th].
104. ``Determinants for the Lightcone Worldsheet,'' May 2012. Phys. Rev. D86 (2012) 066010 e-Print: arXiv:1205.5815 [hep-th]
105. ``Closed String Self-energy on the Lightcone Worldsheet Lattice,'' (with Georgios Papathanasiou), Jun 2012. Phys. Rev. D86 (2012) 066002 e-Print: arXiv:1206.5554 [hep-th].
106. ``Worldsheet Propagator on the Lightcone Worldsheet Lattice,'' ( with Georgios Papathanasiou), Dec 2012. Phys. Rev. D87 (2013) 066005; e-Print: arXiv:1212.2900 [hep-th]
107. ``Null Physical States in String Models,'' Dec 2012. JHEP {\bf 1302} (2013) 030; e-Print: arXiv:1212.4429 [hep-th]
108. ``Open String Self-energy on the Lightcone Worldsheet Lattice,'' (with Georgios Papathanasiou), Published in Phys.Rev. D88 (2013) 2, 026014, e-Print: arXiv:1305.5850 [hep-th]
109. ``6-Vertex Model on an Open String Worldsheet,'' e-Print: arXiv:1307.3233 [hep-th]
110. ``Stable String Bit Models,'' (with Songge Sun), Published in Phys.Rev. D89 (2014) 105002, e-Print: arXiv:1402.7362 [hep-th]
111. ``Space from String Bits,'' Published in JHEP 1411 (2014) 110 e-Print: arXiv:1407.8144 [hep-th]
112. ``String Bits at Finite Temperature and the Hagedorn Phase.'' Published in Phys.Rev. D92 (2015) 066007, e-Print: arXiv:1507.03036 [hep-th]
113. ``1/N Perturbations in Superstring Bit Models.'' Published in Phys.Rev. D93 (2016) 066003, e-Print: arXiv:1512.08439 [hep-th]
114. ``Protostring Scattering Amplitudes.'' Submitted to Phys.Rev D,. e-Print: arXiv:1607.04237 [hep-th]

Lectures and Invited Talks:
1. ``The String Model'', invited talk to American Physical Society, Washington, 1973.
2. ``The Bag: A New Extended Model of the Hadron'', invited talk at the XVII International Conference on High Energy Physics, London, 1974; Proceedings, I-251 -- I-253 coauthored with K. Johnson.
3. (a) ``Dual Models and Strings: The Critical Dimension'', (b) ``Duality and Finite Size Effects in Six Vertex Models'', invited lectures given at the Les Houches Winter School on ``Common Trends in Particle and Condensed Matter Physics'', February, 1980. Physics Reports 67, 163 (1980).
4. ``A Proof of the No-Ghost Theorem Using the Kac Determinant'', invited paper presented to the Workshop on Vertex Operators in Mathematics and Physics, November 10-17, 1983, at the Mathematical Sciences Research Institute, Berkeley, California; published in Vertex Operators in Mathematics and Physics, J. Lepowsky, S. Mandelstam, and I. M. Singer, Editors, Springer-Verlag (1985), pp. 411-418.
5. ``Introduction to Dual String Models'', invited lecture at the meeting on Infinite Dimensional Lie Algebras and Groups held at Mathematisches Forschungsinstitut Oberwolfach, West Germany, April 21-April 27, 1985.
6. ``Introduction to the Theory of Relativistic Strings'', invited lectures given at the Workshop on Unified String Theories held at the University of California, Santa Barbara, July 29-August 16, 1985; published in Unified String Theories, M. Green and D. Gross, Eds., World Scientific (1986), pp. 5-45.
7. ``The Relation Between Light Cone and Covariant Methods in String Theory'' presented to the workshop on ``Superstring Theories and the Mathematical Structure of Infinite-Dimensional Lie Algebras'' of the Santa Fe Institute, November 8-10, 1985.
8. ``The Oscillator Representation of Witten's Three Open String Vertex Function'', invited lecture at the 23rd International Conference on High Energy Physics, Berkeley, July 1986; published in the Proceedings, Vol. I, S. Loken, Ed., World Scientific (1987), pp. 374-376.
9. ``Perturbative String Field Theory'', Conference on Superstrings, Institute for Theoretical Physics, University of California, Santa Barbara, California, December 15-20, 1986.
10. ``Calculations in Perturbative String Field Theory'', Conference on Perspectives in String Theory, The Niels Bohr Institute and Nordita, Copenhagen, October 12-16, 1987; published in Perspectives in String Theory, P. di Vecchia and J. L. Petersen, Eds., World Scientific (1988), pp. 481-495.
11. ``Lectures on String Theory'', Three lectures presented at the Spring School on Superstrings held at the ICTP, Trieste, Italy, April 1988, published in Superstrings '88, Proc. of the Trieste Spring School, M. Green, M. Grisaru, R. Iengo, and A. Strominger, Eds., World Scientific (1988).
12. ``Lattice Strings'', invited lecture at the workshop Strings '88, University of Maryland, May 1988; published in Strings '88, S. J. Gates, Jr., C. R. Preitschopf, and W. Siegel, Eds.; World Scientific (1989).
13. ``Superstring Field Theory'', invited lecture at the Workshop on Superstring and Particle Theory, Tuscaloosa, Alabama, Nov. 8-11, 1989, published in Superstrings and Particle Theory, L. Clavelli and B. Harms, Eds., World Scientific (1990), pp. 38-48.
14. ``String Theory in Subcritical Dimensions'', invited talk to the XV\`eme Rencontre Triangulaire (Paris-Rome-Utrecht), Paris, April 3-5, 1991.
15. ``Reformulating String Theory with the $1/N_c$ Expansion'', invited talk at the First International A. D. Sakharov Conference on Physics, P. N. Lebedev Institute, Moscow, May 27-31, 1991, published in \it Sakharov Memorial Lectures in Physics, L. V. Keldysh and V. Ya. Feinberg, Eds., Nova Science Publishers Inc. (1992), HEP-TH 9405069.
16. ``The Relativistic String as a Composite Structure'', invited lecture to a Symposium in Honor of Kenneth Johnson, held at MIT, Cambridge, Mass., 2 November 1991.
17. ``Regge Trajectories in QCD,'' invited talk to the Conference on Unified Symmetry in the Small and in the Large, held in Coral Gables, Florida, 25-27 January 1993.
17. ``Regge Trajectories in QCD'', invited talk at Global Foundation Conference, Coral Gables, Florida, January 1993, published in \it Unified Symmetry: In the Small and in the Large, Nova Science Publishers, Inc. (1994), in press.
18. ``String Bits'', invited talk at Rutgers University, 3 May 1994.
19. ``Formulating String Theory on the Light Cone,'' invited talk to the 5th Workshop on Light-cone QCD held at the Telluride Summer Research Center in Telluride, CO, 14\dash26 August 1995.
20. ``Substructure of String,'' invited talk to the \it Strings 96 conference, organized by the Institute for Theoretical Physics at the University of California, Santa Barbara, 15\dash20 July 1996, hep-th/9607204.
21. ``Supersymmetry in String-Bit Models,'' invited talk at Harvard University, 14 November 1996.
22. ``Newtonian Dynamics in an Infinite Momentum Frame,'' invited talk to the 29th International Conference on High Energy Physics, 23-29 July 1998, Vancouver, B.C., Canada, published in the Proceedings, A. Astbury, D. Axen, and J. Robinson, Eds, World Scientific (1999), pp. 1763-1767.
23. ``QCD Fishnets Revisited,'' invited talk to the Workshop on Non-Perturbative Particle Dynamics, held at the Aspen Center for Physics, Aspen, Colorado, 10-16 January 1999.
24. ``Fields and String on a Light Front''; ``Discretizing $P^+$: Exploiting the Newtonian Analogy in Light-front Dynamics''; ``Summing Planar Graphs on a Discrete Light Front''; ``Holography, Gravity, and the QCD/String Connection''. Four invited lectures presented to the Asia Pacific Center for Theoretical Physics, and to Seoul National Uiversity, 16-29 May 1999.
25. ``String from Large N Gauge Fields via Graph Summation on a P+ - X+ Lattice'', UFIFT-HEP-00-9, Apr 2000. 10pp. Talk given at 5th Workshop on QCD, Villefranche-sur-Mer, France, 3-7 Jan 2000. e-Print Archive: hep-th/0004129.
26. ``Summing Planar Diagrams for String and Gauge Theories'', invited talk to the Workshop on Light-cone Physics, Trento, Italy, September 2001. Published in Nucl. Phys. Proc. Suppl. \bf 108 (2002), 123-129.
27. Lightcone Worldsheet Description of Large $N_c$ QCD, invited talk to the INT workshop on QCD and String Theory, University of Washington, Seattle WA, 19-22 February 2003.
28. `` Quantum field theory in the language of light cone string,'' UFIFT-HEP-03-24, Oct 2003. 9pp. Talk given at Light-Cone Workshop: Hadrons and Beyond (LC 03), Durham, England, 5-9 Aug 2003, e-Print Archive: hep-th/0310121
29. `` Fields in the language of string: Divergences and renormalization,'' UFIFT-HEP-03-26, Nov 2003. 11pp. Talk given at 27th Johns Hopkins Workshop on Current Problems in Particle Theory: Symmetries and Mysteries of M-Theory, Goteborg, Sweden, 24-26 Aug 2003. Published in *Goeteborg 2003, Symmetries and mysteries of M theory* jhw2003/006 e-Print Archive: hep-th/0311026
30. ``QCD as a String Theory: 1. Hadronic Stringiness; 2. Planar QCD as a Worldsheet System.'' Lectures given at the summer school, Prospects in Theoretical Physics: String Theory, 19-30 July, 2004, Institute for Advanced Study, Princeton, NJ.
31. ``The Worldsheet as a Template for Summing Planar Diagrams,'' talk given 19 August 2004 as a contribution to the KITP Program: QCD and String Theory (Aug 2 - Dec 17, 2004), http://online.itp.ucsb.edu/online/qcd04/thorn/
32. ``Gauge Field/String duality at weak coupling,'' talk given at Miami 2004: Celebrating 40 years of quarks, cosmology, CP-violation, and physics conferences in greater Miami, 15-19 December 2004, Coral Gables and Key Biscayne, Florida.
33. ``One-Loop QCD on the Lightcone Worldsheet,'' talk given at Miami 2005: Celebrating a century of physics in the Einstein era, 14-18 December 2005, Coral Gables and Key Biscayne, Florida.
34. ``Large N Gauge Theories at Weak and Strong Coupling,'' Talk given at Eurostrings 2006: April 3-7, Cambridge, UK, transparencies and video of talk: http://www.damtp.cam.ac.uk/estg06/talks/thorn/index.html
35. ``One-loop glue-glue scattering on the light-cone worldsheet,'' talk given at Continuous Advances in QCD 2006, Minneapolis, May 11-14, 2006, and at the International Workshop on Light-Cone QCD and Nonperturbative Hadron Physics Minneapolis, Minnesota, May 15-19, 2006
36. ``Scattering of Glue by Glue on the Light-cone Worldsheet,'' Invited lecture to the Niels Bohr Summer Institute, Frontiers in Theoretical Particle Physics, Copenhagen, Denmark. 8 August 2006.
37. ``Field/String Duality'', Invited Lecture to the Concluding Conference (14-16 August 2006) to the Niels Bohr Summer Institute, Frontiers in Theoretical Particle Physics, Copenhagen, Denmark.
38. ``String/Flux Tube Duality'', invited talk to the conference Quark Confinement and the Hadron Spectrum VII, 2-7 September 2006, Ponta Delgada, Azores, Published in AIP Conf.Proc.892:227-230,2007. Also in *Ponta Delgada 2006, Quark confinement and the hadron spectrum* 227-230 e-Print: hep-th/0610198
39. ``Modeling the QCD force on the Lightcone Worldsheet'' Invited talk to the Miami 2006 Conference, 12-17 December 2006, Lago Mar Resort, Fort Lauderdale, Florida.
40. ``The Q\bar Q Flux Tube on the Lightcone Worldsheet,'' invited talk given to the Ninth Workshop on QCD, Paris, France, 4-8 June 2007.
41. ``Subcritical String and QCD,'' invited talk to the workshop, From Strings to Things, Institute for Nuclear Theory, Seattle WA, May 2008.
42. ``Subcritical Dual Models and Gauge Theory,'' invited talk to the conference, Un Jour avec Andr\'e Neveu, Ecole Normale Superieure, Paris, France, 20 June 2008.
43. ``Nonabelian D-branes, Open Strings, and Gauge Theory'', invited talk to the Miami 2008 conference on elementary particles, astrophysics, and cosmology, Fort Lauderdale, Florida, 16-21 December 2010.
44. ``Large N Gauge Theory on the Lightcone Worldsheet,'' Contribution to Stanleyfest, KITP, Santa Barbara, 13 February 2009.
45. ``Asymptotic Freedom from Open String Loops,'' Invited talk, BNL, 08 May 2009.
46. ``Resolution of IR Divergences in Gauge Theory Regulated on a Worldsheet Lattice'', invited talk to the Miami 2010 conference on elementary particles, astrophysics, and cosmology, Fort Lauderdale, Florida, 14-19 December 2010.
47. ``Regge Trajectories in String Theory and Large N Gauge Theories,'' invited talk to the workshop Continuous Advances in QCD 2011, 12-15 May 2011, University of Minnesota, Minneapolis, Minnesota.
48. ``String Self-energy on the Lightcone Worldsheet Lattice'' invited talk to the workshop Scattering Amplitudes: from QCD to maximally supersymmetric Yang-Mills theory and back, ECT, Trento, Italy, 16 - 20 July 2012.
49. ``Emergent String,'' invited talk to the Miami 2013 conference on elementary particles, astrophysics, and cosmology, Fort Lauderdale, Florida, 12-18 December 2013
50. ``Space from Superstring Bits,'' invited talk to the Miami 2014 conference on elementary particles, astrophysics, and cosmology, Fort Lauderdale, Florida, 17-23 December 2014
51. ``String Interactions from String Bits,'' invited talk to the Miami 2015 conference on elementary particles, astrophysics, and cosmology, Fort Lauderdale, Florida, 16-22 December 2015. .
Research Grants and Contracts:
DOE Grant No. DE-FG02-97ER-41029, March 2010-present, Department of Energy, Co-principal Investigators: P. Ramond and C. B. Thorn.