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1.
Holomorphicity and Modularity in Seiberg-Witten Theories with Matter / Huang, Min-xin (CERN) ; Klemm, Albrecht (Bonn U.)
We calculate the gravitational corrections to the effective action of N=2 SU(2) Seiberg-Witten theory with matter using modularity, the holomorphic anomaly equation and expected behavior at the boundaries of the moduli space. As in pure gauge theory we show that the gap condition at the dyon singularities completely fixes the gravitational corrections. [...]
arXiv:0902.1325; BONN-TH-09-01; CERN-PH-TH-2008-236; BONN-TH-09-01; CERN-PH-TH-2008-236.- Geneva : CERN, 2010 - 53 p. - Published in : JHEP 07 (2010) 083 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
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2.
Remodeling the B-model / Bouchard, Vincent (Harvard U., Phys. Dept.) ; Klemm, Albrecht (Bonn U.) ; Marino, Marcos (CERN) ; Pasquetti, Sara (Neuchatel U.)
We propose a complete, new formalism to compute unambiguously B-model open and closed amplitudes in local Calabi-Yau geometries, including the mirrors of toric manifolds. The formalism is based on the recursive solution of matrix models recently proposed by Eynard and Orantin. [...]
arXiv:0709.1453; BONN-TH-2007-07; CERN-PH-TH-2007-153; NEIP-07-03; BONN-TH-2007-07; CERN-PH-TH-2007-153; NEIP-07-03.- 2009 - 83 p. - Published in : Commun. Math. Phys. 287 (2009) 117-178 Fulltext: PDF; Preprint: PDF; External link: Preprint
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3.
Black Holes and Large Order Quantum Geometry / Huang, Min-xin (Wisconsin U., Madison) ; Klemm, Albrecht (Wisconsin U., Madison ; Wisconsin U., Madison, Math. Dept.) ; Marino, Marcos (CERN) ; Tavanfar, Alireza (CERN ; IPM, Tehran)
We study five-dimensional black holes obtained by compactifying M theory on Calabi-Yau threefolds. Recent progress in solving topological string theory on compact, one-parameter models allows us to test numerically various conjectures about these black holes. [...]
arXiv:0704.2440; MAD-TH-07-05; CERN-PH-TH-2007-070; CERN-PH-TH-2007-070; MAD-TH-07-05.- Geneva : CERN, 2009 - 42 p. - Published in : Phys. Rev. D 79 (2009) 066001 APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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4.
Direct Integration of the Topological String / Grimm, Thomas W. (Wisconsin U., Madison) ; Klemm, Albrecht (Wisconsin U., Madison) ; Marino, Marcos (CERN) ; Weiss, Marlene (CERN ; Zurich, ETH)
We present a new method to solve the holomorphic anomaly equations governing the free energies of type B topological strings. The method is based on direct integration with respect to the non-holomorphic dependence of the amplitudes, and relies on the interplay between non-holomorphicity and modularity properties of the topological string amplitudes. [...]
hep-th/0702187; CERN-PH-TH-2007-039; MAD-TH-07-04; CERN-PH-TH-2007-039; MAD-TH-2007-04.- Geneva : CERN, 2007 - 75 p. - Published in : JHEP 08 (2007) 058 Fulltext: arXiv:hep-th_0702187 - PDF; 0702187 - PDF; SISSA/IOP Open Access article: PDF; External link: Preprint
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5.
BPS States of Exceptional Non-Critical Strings / Klemm, Albrecht (CERN) ; Mayr, Peter (CERN) ; Vafa, Cumrun (Harvard U.)
We study the BPS states of non-critical strings which arise for zero size instantons of exceptional groups. This is accomplished by using F-theory and M-theory duals and by employing mirror symmetry to compute the degeneracy of membranes wrapped around 2-cycles of the Calabi-Yau threefold. [...]
hep-th/9607139; CERN-TH-96-184; HUTP-96-A031; HUTP-96-A-031; CERN-TH-96-184.- Geneva : CERN, 1996 - 28 p.
- Published in : , pp. 177-194 Access to fulltext document: PDF; Fulltext: PDF; External link: hep-th/9607139 PDF
In : Conference on Advanced Quantum Field Theory : European Research Conference in Memory of Claude Itzykson, La Londe-les-Maures, France, 31 Aug - 5 Sep 1996, pp.177-194 - Please contact the library if you need to access this document.
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6.
New Higgs transitions between dual N=2 string models / Berglund, Per (CERN) ; Katz, Sheldon H. (Oklahoma State U.) ; Klemm, Albrecht (Harvard U.) ; Mayr, Peter (CERN)
We describe a new kind of transition between topologically distinct $N=2$ type II Calabi--Yau vacua through points with enhanced non-abelian gauge symmetries together with fundamental charged matter hypermultiplets. We connect the appearance of matter to the local geometry of the singularity and discuss the relation between the instanton numbers of the Calabi--Yau manifolds taking part in the transition. [...]
hep-th/9605154; CERN-TH-96-133; NSF-ITP-95-162; OSU-M-96-6; NSF-ITP-95-162; OSU-M-96-6; CERN-TH-96-133.- Santa Barbara, CA : Calif. Univ. Santa Barbara. Inst. Theor. Phys., 1997 - 23 p. - Published in : Nucl. Phys. B 483 (1997) 209-228 Access to fulltext document: PDF; Fulltext: PDF; External link: hep-th/9605154 PDF - Please contact the library if you need to access this document.
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7.
Self-dual strings and N=2 supersymmetric field theory / Klemm, Albrecht (CERN) ; Lerche, Wolfgang (CERN) ; Mayr, Peter (CERN) ; Vafa, Cumrun (Harvard U.) ; Warner, Nicholas P. (Southern California U.)
We show how the Riemann surface \Sigma of N=2 Yang-Mills field theory arises in type II string compactifications on Calabi-Yau threefolds. The relevant local geometry is given by fibrations of ALE spaces. [...]
hep-th/9604034; CERN-TH-96-95; HUTP-96-A014; USC-96-008; CERN-TH-96-095; HUTP-96-A-014; USC-96-008.- Geneva : CERN, 1996 - 23 p. - Published in : Nucl. Phys. B 477 (1996) 746-764 Access to fulltext document: PDF; Fulltext: PDF; External link: hep-th/9604034 PDF - Please contact the library if you need to access this document.
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8.
Strong coupling singularities and non-abelian gauge symmetries in N=2 string theory / Klemm, Albrecht (CERN) ; Mayr, Peter (CERN)
We study a class of extremal transitions between topological distinct Calabi--Yau manifolds which have an interpretation in terms of the special massless states of a type II string compactification. In those cases where a dual heterotic description exists the exceptional massless states are due to genuine strong (string-) coupling effects. [...]
hep-th/9601014; CERN-TH-96-02; CERN-TH-96-002.- Geneva : CERN, 1996 - 16 p. - Published in : Nucl. Phys. B 469 (1996) 37-50 Access to fulltext document: PDF; Fulltext: PDF; External link: hep-th/9601014 PDF - Please contact the library if you need to access this document.
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Vedi anche: autori con nomi simili
11 Klemm, A
41 Klemm, A D
1 Klemm, A O
6 Klemm, A.
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