Zobrazeno 1 - 10
of 13
pro vyhledávání: '"David Tennyson"'
Autor:
Anthony Ashmore, Javier José Murgas Ibarra, David Duncan McNutt, Charles Strickland-Constable, Eirik Eik Svanes, David Tennyson, Sander Winje
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 10, Pp 1-52 (2023)
Abstract We consider a heterotic version of six-dimensional Kodaira-Spencer gravity derived from the heterotic superpotential. We compute the one-loop partition function and find it can be expressed as a product of holomorphic Ray-Singer torsions. We
Externí odkaz:
https://doaj.org/article/c9fab35f2fef42d3a9be895d8f968839
Autor:
Anthony Ashmore, André Coimbra, Charles Strickland-Constable, Eirik Eik Svanes, David Tennyson
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 2, Pp 1-77 (2022)
Abstract We study the topological G 2 and Spin(7) strings at 1-loop. We define new double complexes for supersymmetric NSNS backgrounds of string theory using generalised geometry. The 1-loop partition function then has a target-space interpretation
Externí odkaz:
https://doaj.org/article/5858ab2a2b0448608153ec745ea52262
Autor:
David Tennyson, Daniel Waldram
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-64 (2021)
Abstract We present a detailed study of a new mathematical object in E6(6)ℝ+ generalised geometry called an ‘exceptional complex structure’ (ECS). It is the extension of a conventional complex structure to one that includes all the degrees of f
Externí odkaz:
https://doaj.org/article/f683f362178c4705b86e88154a5007b7
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 1, Pp 1-66 (2021)
Abstract We analyse the geometry of generic Minkowski N $$ \mathcal{N} $$ = 1, D = 4 flux compactifications in string theory, the default backgrounds for string model building. In M-theory they are the natural string theoretic extensions of G2 holono
Externí odkaz:
https://doaj.org/article/f84c716c9d0740e385144ae1c01c1476
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 11, Pp 1-46 (2020)
Abstract We describe the geometry of generic heterotic backgrounds preserving minimal supersymmetry in four dimensions using the language of generalised geometry. They are characterised by an SU(3) × Spin(6 + n) structure within O(6, 6 + n) × ℝ+
Externí odkaz:
https://doaj.org/article/61377964fa3a4b6783deb9f64e8a8762
Publikováno v:
Universe, Vol 8, Iss 3, p 147 (2022)
We introduce QP manifolds that capture the generalised geometry of type IIA string backgrounds with Ramond–Ramond fluxes and Romans mass. Each of these is associated with a BPS brane in type IIA: a D2, D4, or NS5-brane. We explain how these probe b
Externí odkaz:
https://doaj.org/article/4e9cd16f60e84bc39c2a8678a71ad598
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 11, Pp 1-46 (2020)
Journal of High Energy Physics
Journal of High Energy Physics
We describe the geometry of generic heterotic backgrounds preserving minimal supersymmetry in four dimensions using the language of generalised geometry. They are characterised by an $SU(3)\times Spin(6+n)$ structure within $O(6,6+n)\times\mathbb{R}^
Autor:
Daniel Waldram, David Tennyson
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-64 (2021)
Journal of High Energy Physics
Journal of High Energy Physics
We present a detailed study of a new mathematical object in $\mathrm{E}_{6(6)}\times \mathbb{R}^{+}$ generalised geometry called an `exceptional complex structure' (ECS). It is the extension of a conventional complex structure to one that includes al
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2021, Iss 1, Pp 1-66 (2021)
Journal of High Energy Physics, Vol 2021, Iss 1, Pp 1-66 (2021)
We analyse the geometry of generic Minkowski $$ \mathcal{N} $$ N = 1, D = 4 flux compactifications in string theory, the default backgrounds for string model building. In M-theory they are the natural string theoretic extensions of G2 holonomy manifo
The problem of this study was to test the differences between adult children from alcoholic families with adult children from non-alcoholic families on levels of depression, self-esteem, and anxiety. The sample consisted of 203 volunteers, all from t
Externí odkaz:
https://digital.library.unt.edu/ark:/67531/metadc331053/