Publications
221 results found
Duff MJ, Liu JT, Stelle KS, et al., 2006, A celebration of the life and works of stanley deser, ISBN: 9789812560827
Batrachenko A, Duff MJ, Lu JX, et al., 2005, Generalized holonomy of M-theory vacua, Nuclear Physics B, Vol: 726, Pages: 275-293, ISSN: 0550-3213
Duff MJ, 2005, Hidden symmetries in M-theory, 32nd Coral Gables Conference High Energy Physics and Cosmology, Publisher: WORLD SCIENTIFIC PUBL CO PTE LTD, Pages: 373-381
Duff M, 2005, Ten big questions, New York, 2nd Mexican Meeting on Mathematical and Experimental Physics, 6 - 10 September 2004, Mexico City, MEXICO, Publisher: American Institute of Physics, Pages: 3-29, ISSN: 0094-243X
Duff MJ, 2005, Benchmarks on the brane: Asim Barut memorial lecture, Bogazci University, Istanbul, October 2002, Arxiv.org, Pages: 1-27
Duff MJ, 2004, Benchmarks on the brane
Branes now occupy center stage in theoretical physics as microscopiccomponents of M-theory, as the higher-dimensional progenitors of black holesand as entire universes in their own right. Their history has been a checkeredone, however. Here we list some of the milestones, starting with Dirac's 1962paper. Asim Barut was an early pioneer.
Duff MJ, Liu JT, Sati H, 2004, Complementarity of the Maldacena and Karch-Randall pictures, Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol: 69, ISSN: 1550-2368
We perform a one-loop test of the holographic interpretation of the Karch-Randall model, whereby a massive graviton appears on an AdS4 brane in an AdS5 bulk. Within the AdS/CFT framework, we examine the quantum corrections to the graviton propagator on the brane, and demonstrate that they induce a graviton mass in exact agreement with the Karch-Randall result. Interestingly enough, at one loop order, the spin-0, spin-1/2, and spin-1 loops contribute to the dynamically generated (mass)2 in the same 1:3:12 ratio as enter the Weyl anomaly and the 1/r3 corrections to the Newtonian gravitational potential.
Duff MJ, 2004, Erice lectures on "The status of local supersymmetry", From Quarks to Black Holes, Publisher: World Scientific, Pages: 60-116
In the first lecture we review the current status of local supersymmetry. Inthe second lecture we focus on D=11 supergravity as the low-energy limit ofM-theory and pose the questions: (1) What are the D=11 symmetries? (2) How manysupersymmetries can M-theory vacua preserve?
Duff MJ, Liu JT, Sati H, 2004, Quantum discontinuity for massive spin-3/2 with a Lambda term, Nuclear Physics B, Vol: 680, Pages: 117-130, ISSN: 0550-3213
We show that the recently demonstrated absence of the van Dam–Veltman–Zakharov discontinuity for massive spin-3/2 with a Λ term is an artifact of the tree approximation, and that the discontinuity reappears at one loop. As a numerical check on the calculation, we rederive the vanishing of the one-loop beta function for D=11 supergravity on AdS4×S7 level-by-level in the Kaluza–Klein tower.
Duff MJ, 2004, The status of local supersymmetry, Publisher: World Scientific Publishing
Duff MJ, Liu JT, 2004, Hidden spacetime symmetries and generalized holonomy in M-theory, Princeton, International conference 20 years of sugra and search for susy and unification (Sugra20), Boston, MA, 17 - 21 March 2003, Publisher: Rinton Press, Inc, Pages: 455-469
Duff MJ, Liu JT, 2003, Hidden spacetime symmetries and generalized holonomy in M-theory, Nuclear Physics B, Vol: 674, Pages: 217-230, ISSN: 0550-3213
Duff MJ, Liu JT, Sati H, 2003, Complementarity of the Maldacena and Karch-Randall pictures, 1st International Conference on String Phenomenology, Publisher: WORLD SCIENTIFIC PUBL CO PTE LTD, Pages: 75-82
Duff MJ, Liu JT, Sati H, 2003, Complementarity of the Maldacena and Karch-Randall pictures, Melville, 3rd tropical workshop on particle physics and cosmology, San Juan, Puerto Rico, 19 - 23 August 2002, Publisher: American Institute of Physics, Pages: 155-162
Duff MJ, 2002, Director's welcoming address, Publisher: WORLD SCIENTIFIC PUBL CO PTE LTD, Pages: 1-5, ISSN: 0217-751X
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- Citations: 2
Duff M, Liu JT, 2002, Proceedings of the Inaugural Conference of the Michigan Center for Theoretical Physics 2001: A spacetime odyssey - Michigan, USA - May 21-25, 2002 - Preface, Publisher: WORLD SCIENTIFIC PUBL CO PTE LTD, Pages: IX-X, ISSN: 0217-751X
Duff MJ, Okun LB, Veneziano G, 2002, Trialogue on the number of fundamental constants, Journal of High Energy Physics, Vol: 2002, ISSN: 1029-8479
This paper consists of three separate articles on the number of fundamental dimensionful constants in physics. We started our debate in summer 1992 on the terrace of the famous CERN cafeteria. In the summer of 2001 we returned to the subject to find that our views still diverged and decided to explain our current positions. LBO develops the traditional approach with three constants, GV argues in favor of at most two (within superstring theory), while MJD advocates zero.
Duff MJ, 2002, Lectures on branes, black holes, and anti-de sitter space, CRM Summer School on Theoretical Physics at the End of the Twentieth Century, Publisher: SPRINGER, Pages: 127-243
Duff MJ, 2002, Progress in M-theory, Melville, 13th coral gables conference on cosmology and elementary particle physics, Ft Lauderdale, Florida, 12 - 16 December 2001, Publisher: American Institute of Physics, Pages: 245-254
Batrachenko A, Duff MJ, Lu JX, 2002, The membrane at the end of the (de Sitter) universe, Arxiv.org, Pages: 1-21
Duff MJ, 2001, The world in eleven dimensions: a tribute to Oskar Klein, Publisher: arXiv
Current attempts to find a unified theory that would reconcile Einstein’s General Relativity and Quantum Mechanics, and explain all known physical phenomena, invoke the Kaluza-Klein idea of extra spacetime dimensions. The best candidate is M-theory, which lives in eleven dimensions, the maximum allowed bysupersymmetry of the elementary particles. We give a non-technical account.An Appendix provides an updated version of Edwin A. Abbott’s 1884 satireFlatland: A Romance of Many Dimensions. Entitled Flatland, Modulo 8, it describes the adventures of a superstring theorist, A. Square, who inhabits a tendimensional world and is initially reluctant to accept the existence of an eleventhdimension.
Duff MJ, 2001, State of the unification address, Meeting of the Division of Particles and Fields of the American-Physical-Society (APS), Publisher: World Scientific Publishing, Pages: 77-91, ISSN: 0217-751X
After reviewing how M-theory subsumes string theory, I report broadly on some new and interesting developments, focusing on the "brane world": circumventing no-go theorems for supersymmetric brane-worlds, complementarity of the Maldacena and Randall-Sundrum pictures; self-tuning of the cosmological constant. I conclude with the top ten unsolved problems.
Duff MJ, Liu JT, Sati H, 2001, Quantum M-2 -> 2 Lambda/3 discontinuity for massive gravity with a Lambda term, Physics Letters B, Vol: 516, Pages: 156-160, ISSN: 0370-2693
In a previous paper we showed that the absence of the van Dam–Veltman–Zakharov discontinuity as M2→0 for massive spin 2 with a Λ term is an artifact of the tree approximation, and that the discontinuity reappears at one loop, as a result of going from five degrees of freedom to two. In this Letter we show that a similar classical continuity but quantum discontinuity arises in the “partially massless” limit M2→2Λ/3, as a result of going from five degrees of freedom to four.
Duff MJ, Liu JT, 2001, Complementarity of the Maldacena and Randall-Sundrum pictures, 2nd Gursey Memorial Conference, Publisher: IOP PUBLISHING LTD, Pages: 3207-3213, ISSN: 0264-9381
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- Citations: 52
Dilkes FA, Duff MJ, Liu JT, et al., 2001, Quantum discontinuity between zero and infinitesimal graviton mass with a Lambda term, Physical Review Letters, Vol: 87, ISSN: 0031-9007
We show that the recently demonstrated absence of the usual discontinuity for massive spin 2 with a Λterm is an artifact of the tree approximation, and that the discontinuity reappears at one loop.
Cvetic M, Duff MJ, Liu JT, et al., 2001, Randall-Sundrum brane tensions, NUCLEAR PHYSICS B, Vol: 605, Pages: 141-158, ISSN: 0550-3213
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- Citations: 19
Duff MJ, Liu JT, Sabra WA, 2001, Localization of supergravity on the brane, Nuclear Physics B, Vol: 605, Pages: 234-244, ISSN: 0550-3213
A supersymmetric Randall–Sundrum brane-world demands that not merely the graviton but the entire supergravity multiplet be trapped on the brane. To demonstrate this, we present a complete ansatz for the reduction of (D=5, N=4) gauged supergravity to (D=4, N=2) ungauged supergravity in the Randall–Sundrum geometry. We verify that it is consistent to lowest order in fermion terms. In particular, we show how the graviphotons avoid the ‘no photons on the brane’ result because they do not originate from Maxwell's equations in D=5 but rather from odd-dimensional self-duality equations. In the case of the fivebrane, the Randall–Sundrum mechanism also provides a new Kaluza–Klein way of obtaining chiral supergravity starting from non-chiral.
Duff MJ, 2001, Special issue: Strings, branes, and M-theory - Introduction, JOURNAL OF MATHEMATICAL PHYSICS, Vol: 42, Pages: VIII-X, ISSN: 0022-2488
Duff MJ, Liu JT, 2001, Hodge duality on the brane, Physics Letters B, Vol: 508, Pages: 381-384, ISSN: 0370-2693
It has been claimed that whereas scalars can be bound to a Randall–Sundrum brane, higher p-form potentials cannot, in contradiction with the Hodge duality between 0-form and 3-form potentials in the five-dimensional bulk. Here we show that a 3-form in the bulk correctly yields a 2-form on the brane, in complete agreement with both bulk and brane duality. We also emphasize that the phenomenon of photon screening in the Randall–Sundrum geometry is ruled out by the bulk Einstein equation.
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