Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Kyoungho Cho"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-84 (2024)
Abstract The quantum off-shell recursion provides an efficient and universal computational tool for loop-level scattering amplitudes. In this work, we present a new comprehensive computational framework based on the quantum off-shell recursion for bi
Externí odkaz:
https://doaj.org/article/c9ca1a780a0145c3a1942aa61bf5aa7f
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 3, Pp 1-38 (2023)
Abstract We derive all-order expressions for perturbations of the Einstein-Hilbert action and the Einstein equation with the general n-th order terms. To this end, we employ Cheung and Remmen’s perturbation conventions both in tensor density and th
Externí odkaz:
https://doaj.org/article/303e25d7c1c8443b9ff09d503868a38a
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-42 (2022)
Abstract We construct the off-shell recursion for gravity and the graviton current for the perturbative double field theory (DFT). We first formulate the perturbative DFT, which is equivalent but simpler to perturbative general relativity, to all-ord
Externí odkaz:
https://doaj.org/article/feaaad932dd8400c9caecb3ce8ec6287
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-41 (2021)
Abstract We study the classical double copy for ungauged half-maximal supergravities using the Kaluza-Klein reduction of double field theory (DFT). We construct a general formula for the Kaluza-Klein (KK) reduction of the DFT Kerr-Schild ansatz. The
Externí odkaz:
https://doaj.org/article/a378077471104e0d93d5f7c02d371b51
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 9, Pp 1-20 (2020)
Abstract In string theory the closed-string massless NS-NS sector forms a multiplet of $$\mathbf {O}(D,D)$$ O ( D , D ) symmetry. This suggests a specific modification to General Relativity in which the entire NS-NS sector is promoted to stringy grav
Externí odkaz:
https://doaj.org/article/39777a6322644186b8dc8c1907e1580e
Autor:
Kyoungho Cho, Jeong-Hyuck Park
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 2, Pp 1-19 (2020)
Abstract Taking $$\mathbf {O}(D,D)$$ O(D,D) covariant field variables as its truly fundamental constituents, Double Field Theory can accommodate not only conventional supergravity but also non-Riemannian gravities that may be classified by two non-ne
Externí odkaz:
https://doaj.org/article/f9353a703f4f4f9b900958e11866aed0
Publikováno v:
Physics Letters B, Vol 793, Iss , Pp 65-69 (2019)
We propose a novel Kaluza–Klein scheme which assumes the internal space to be maximally non-Riemannian, meaning that no Riemannian metric can be defined for any subspace. Its description is only possible through Double Field Theory but not within s
Externí odkaz:
https://doaj.org/article/42cf0d412c4548d4be37b6c1332abe4a
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 6, Pp 1-33 (2018)
Abstract Upon treating the whole closed string massless sector as stringy graviton fields, Double Field Theory may evolve into Stringy Gravity, i.e. the stringy augmentation of General Relativity. Equipped with an $$\mathrm {O}(D,D)$$ O(D,D) covarian
Externí odkaz:
https://doaj.org/article/00b8d70c0ea44cfea9d47568b86b6d7e
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-30 (2017)
Abstract We consider the analogue of Kutasov-Schwimmer-Seiberg duality for two-dimensional N = 2 2 U k $$ \mathcal{N}=\left(2,2\right)U(k) $$ gauge theory with one adjoint X with the superpotential Tr X l+1 and with fundamental and anti-fundamental c
Externí odkaz:
https://doaj.org/article/41b1bf439aa4430b89d6dc5c596191ec
Publikováno v:
Physics Letters B, Vol 793, Iss, Pp 65-69 (2019)
Physics Letters
Physics Letters B
Physics Letters B, Elsevier, 2019, 793, pp.65-69. ⟨10.1016/j.physletb.2019.04.042⟩
Physics Letters
Physics Letters B
Physics Letters B, Elsevier, 2019, 793, pp.65-69. ⟨10.1016/j.physletb.2019.04.042⟩
We propose a novel Kaluza-Klein scheme which assumes the internal space to be maximally non-Riemannian, meaning that no Riemannian metric can be defined for any subspace. Its description is only possible through Double Field Theory but not within sup