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CERN Document Server 找到 69 筆記錄  1 - 10下一個最後  跳到記錄: 檢索需時 0.72 秒. 
1.
Gromov-Witten/Hilbert versus AdS3/CFT2 Correspondence / Lerche, Wolfgang (CERN)
We consider the boundary dual of AdS3xS3xK3 for NS5-flux Q5=1, which is described by a sigma model with target space given by the d-fold symmetric product of K3. [...]
arXiv:2310.15237 ; CERN-TH-2023-098.
- 39 p.
Fulltext
2.
Physics of Infinite Complex Structure Limits in eight Dimensions / Lee, Seung-Joo (IBS, Daejeon) ; Lerche, Wolfgang (CERN) ; Weigand, Timo (Hamburg U., Inst. Theor. Phys. II ; Hamburg U., Dept. Math.)
We investigate infinite distance limits in the complex structure moduli space of F-theory compactified on K3 to eight dimensions. While this is among the simplest possible arenas to test ideas about the Swampland Distance Conjecture, it is nevertheless non-trivial enough to improve our understanding of the physics for these limiting geometries, including phenomena of emergence. [...]
arXiv:2112.08385; CERN-TH-2021-214; CTPU-PTC-21-41; ZMP-HH/21-24.- 2022-06-08 - 58 p. - Published in : JHEP 2206 (2022) 042 Fulltext: 2112.08385 - PDF; document - PDF;
3.
Holomorphic Anomalies, Fourfolds and Fluxes / Lee, Seung-Joo (IBS, Daejeon) ; Lerche, Wolfgang (CERN) ; Lockhart, Guglielmo (CERN) ; Weigand, Timo (Hamburg U., Inst. Theor. Phys. II ; Hamburg U., Dept. Math.)
We investigate holomorphic anomalies of partition functions underlying string compactifications on Calabi-Yau fourfolds with background fluxes. For elliptic fourfolds the partition functions have an alternative interpretation as elliptic genera of N=1 supersymmetric string theories in four dimensions, or as generating functions for relative Gromov-Witten invariants of fourfolds with fluxes. [...]
arXiv:2012.00766.- 2022-03-11 - 67 p. - Published in : JHEP 2203 (2022) 072 Fulltext: document - PDF; 2012.00766 - PDF;
4.
Book cover Recent developments in string theory : 444 Sitzung am 3 Februar 1999 in Düsseldorf / Lerche, Wolfgang
Wiesbaden : Springer, 2000. (Nordrhein-Westfälische Akademie der Wissenschaften ; 445)

ebook
5.
Quasi-Jacobi Forms, Elliptic Genera and Strings in Four Dimensions / Lee, Seung-Joo (IBS, Daejeon, CTPU) ; Lerche, Wolfgang (CERN) ; Lockhart, Guglielmo (CERN) ; Weigand, Timo (U. Mainz, PRISMA ; Mainz U., Inst. Phys.)
We investigate the interplay between the enumerative geometry of Calabi-Yau fourfolds with fluxes and the modularity of elliptic genera in four-dimensional string theories. We argue that certain contributions to the elliptic genus are given by derivatives of modular or quasi-modular forms, which encode BPS invariants of Calabi-Yau or non-Calabi-Yau threefolds that are embedded in the given fourfold. [...]
arXiv:2005.10837.- 2021-01-26 - 95 p. - Published in : JHEP 2101 (2021) 162 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
6.
Quasi-Jacobi Forms, Elliptic Genera and Strings in Four Dimensions / Lee, Seung-Joo (IBS) ; Lerche, Wolfgang (CERN) ; Lockhart, Guglielmo (CERN) ; Weigand, Timo (UMainz)
We investigate the interplay between the enumerative geometry of Calabi-Yau fourfolds with fluxes and the modularity of elliptic genera in four-dimensional string theories. [...]
CERN-TH-2020-077.
- 2020. - 90.
Full text
7.
Emergent Strings from Infinite Distance Limits / Lee, Seung-Joo (CERN) ; Lerche, Wolfgang (CERN) ; Weigand, Timo (CERN ; U. Mainz, PRISMA)
As a refinement of the Swampland Distance Conjecture, we propose that a quantum gravitational theory in an infinite distance limit of its moduli space either decompactifies, or reduces to an asymptotically tensionless, weakly coupled string theory. We support our claim by classifying, as special cases, the behaviour of M-Theory and Type IIA string theory compactifications on Calabi-Yau three-folds at infinite distances in Kahler moduli space. [...]
arXiv:1910.01135; CERN-TH-2019-159.- 2022-02-24 - 96 p. - Published in : JHEP 2202 (2022) 190 Fulltext: document - PDF; 1910.01135 - PDF;
8.
Emergent Strings, Duality and Weak Coupling Limits for Two-Form Fields / Lee, Seung-Joo (CERN) ; Lerche, Wolfgang (CERN) ; Weigand, Timo (CERN ; Mainz U., Inst. Phys. ; U. Mainz, PRISMA)
We systematically analyse weak coupling limits for 2-form tensor fields in the presence of gravity. Such limits are significant for testing various versions of the Weak Gravity and Swampland Distance Conjectures, and more broadly, the phenomenon of emergence. [...]
arXiv:1904.06344; CERN-TH-2019-044.- 2022-02-11 - 30 p. - Published in : JHEP 2202 (2022) 096 Fulltext: document - PDF; 1904.06344 - PDF;
9.
Modular Fluxes, Elliptic Genera, and Weak Gravity Conjectures in Four Dimensions / Lee, Seung-Joo (CERN) ; Lerche, Wolfgang (CERN) ; Weigand, Timo (CERN ; Mainz U., Inst. Phys. ; U. Mainz, PRISMA)
We analyse the Weak Gravity Conjecture for chiral four-dimensional F-theory compactifications with N=1 supersymmetry. Extending our previous work on nearly tensionless heterotic strings in six dimensions, we show that under certain assumptions a tower of asymptotically massless states arises in the limit of vanishing coupling of a U(1) gauge symmetry coupled to gravity. [...]
arXiv:1901.08065.- 2019-08-21 - 73 p. - Published in : JHEP 1908 (2019) 104 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
10.
A Stringy Test of the Scalar Weak Gravity Conjecture / Lee, Seung-Joo (CERN) ; Lerche, Wolfgang (CERN) ; Weigand, Timo (CERN ; Heidelberg U.)
We prove a version of the Weak Gravity Conjecture for 6d F-theory or heterotic string compactifications with 8 supercharges. This sharpens our previous analysis by including massless scalar fields. [...]
arXiv:1810.05169; CERN-TH-2018-220.- 2019-01 - 30 p. - Published in : Nucl. Phys. B 938 (2019) 321-350 Article from SCOAP3: PDF; Fulltext: PDF;

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