Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Jepsen, Christian"'
This paper studies AdS/CFT in its $p$-adic version (at the ``finite place") in the setting where the bulk geometry is made up of the Tate curve, a discrete quotient of the Bruhat-Tits tree. Generalizing a classic result due to Zabrodin, the boundary
Externí odkaz:
http://arxiv.org/abs/2408.04199
The coupling constants of fixed points in the $\epsilon$ expansion at one loop are known to satisfy a quadratic bound due to Rychkov and Stergiou. We refer to fixed points that saturate this bound as extremal fixed points. The theories which contain
Externí odkaz:
http://arxiv.org/abs/2407.12414
We investigate the Brower-Goddard extension of the Veneziano and Virasoro-Shapiro four-point amplitudes obtained by generalizing the Koba-Nielsen integrals to $d$-dimensional conformally invariant integrals. The amplitudes derived from this framework
Externí odkaz:
http://arxiv.org/abs/2406.10176
Autor:
Jepsen, Christian, Oz, Yaron
By means of $\epsilon$ and large $N$ expansions, we study generalizations of the $O(N)$ model where the fundamental fields are tensors of rank $r$ rather than vectors, and where the global symmetry (up to additional discrete symmetries and quotients)
Externí odkaz:
http://arxiv.org/abs/2311.09039
We reveal a low-temperature duality between the hyperbolic lattice model featuring fractons and infinite decoupled copies of Zabrodin's $p$-adic model of AdS/CFT. The core of the duality is the subsystem symmetries of the hyperbolic fracton model, wh
Externí odkaz:
http://arxiv.org/abs/2306.07203
Autor:
Jepsen, Christian Baadsgaard
The Coon amplitude is a $q$-deformed generalization of the Veneziano amplitude exhibiting a semi-infinite sequence of poles that converge on an accumulation point, from which a branch cut emerges. A number of recent papers have provided compelling ev
Externí odkaz:
http://arxiv.org/abs/2303.02149
We study fractional-derivative Maxwell theory, as appears in effective descriptions of, for example, large $N_f$ QED${}_3$, graphene, and some types of surface defects. We argue that when the theory is UV completed on a lattice, monopole condensation
Externí odkaz:
http://arxiv.org/abs/2212.11568
Autor:
Jepsen, Christian B.
For every prime number $p$ it is possible to define a $p$-adic version of the Veneziano amplitude and its higher-point generalizations. Multiplying together the real amplitude with all its $p$-adic counterparts yields the adelic amplitude. At four po
Externí odkaz:
http://arxiv.org/abs/2211.01611
We study a bi-antisymmetric tensor quantum field theory with $O(N_1)\times O(N_2)$ symmetry. Working in $4-\epsilon$ dimensions we calculate the beta functions up to second order in the coupling constants and analyze in detail the Renormalization Gro
Externí odkaz:
http://arxiv.org/abs/2112.09088
Autor:
Jepsen, Christian B., Popov, Fedor K.
Publikováno v:
Phys. Rev. Lett. 127, 141602 (2021)
We study an $\mathcal{N}=1$ supersymmetric quantum field theory with $O(M)\times O(N)$ symmetry. Working in $3-\epsilon$ dimensions, we calculate the beta functions up to second loop order and analyze in detail the Renormalization Group (RG) flow and
Externí odkaz:
http://arxiv.org/abs/2105.01625