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of 63
pro vyhledávání: '"Sundborg, Bo"'
Autor:
Flodgren, Nadia, Sundborg, Bo
We develop a new approach to RG flows and show that one-loop flows in multiscalar theories can be described by commutative but non-associative algebras. As an example related to $D$-brane field theories and tensor models, we study the algebra of a th
Externí odkaz:
http://arxiv.org/abs/2312.04954
Autor:
Flodgren, Nadia, Sundborg, Bo
We study the one loop renormalisation of 4d $SU(N)$ Yang-Mills theory with $M$ adjoint representation scalar multiplets related by $O(M)$ symmetry. General $M$ are of field theoretic interest, and the 4d one loop beta function of the gauge coupling $
Externí odkaz:
http://arxiv.org/abs/2303.13884
Autor:
Flodgren, Nadia, Sundborg, Bo
We determine complete one-loop beta functions of the multi-scalar four-point couplings in four-dimensional $SU(N)$ gauge theories with $M$ adjoint scalar multiplets. For adjoints scalars, the sign of the one loop gauge coupling beta function depends
Externí odkaz:
http://arxiv.org/abs/2206.09705
Autor:
Engelsöy, Julius, Sundborg, Bo
We use mixed correlators in thermal CFT as clean probes of the strong gravity effects in their holographic duals. The dual interpretation of mixing is an inelastic conversion of one field to another field, induced by gravity: tidal excitation. We fin
Externí odkaz:
http://arxiv.org/abs/2106.06520
Correlation functions of most composite operators decay exponentially with time at non-zero temperature, even in free field theories. This insight was recently codified in an OTH (operator thermalisation hypothesis). We reconsider an early example, w
Externí odkaz:
http://arxiv.org/abs/2007.00589
Autor:
Banerjee, Souvik, Engelsöy, Julius, Larana-Aragon, Jorge, Sundborg, Bo, Thorlacius, Larus, Wintergerst, Nico
Publikováno v:
JHEP 1908 (2019) 139
A macroscopic version of Einstein-Podolsky-Rosen entanglement is obtained by quenching a quadratic coupling between two O(N) vector models. A quench of the mixed vacuum produces an excited entangled state, reminiscent of purified thermal equilibrium,
Externí odkaz:
http://arxiv.org/abs/1903.12242
Akademický článek
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Publikováno v:
JHEP 1803 (2018) 075
The emergent nature of spacetime geometry and black holes can be directly probed in simple holographic duals of higher spin gravity and tensionless string theory. To this end, we study time dependent thermal correlation functions of gauge invariant o
Externí odkaz:
http://arxiv.org/abs/1712.06963
Boundary correlation functions provide insight into the emergence of an effective geometry in higher spin gravity duals of O(N) or U(N) symmetric field theories. On a compact manifold, the singlet constraint leads to nontrivial dynamics at finite tem
Externí odkaz:
http://arxiv.org/abs/1612.03009
Autor:
Apolo, Luis, Sundborg, Bo
We test the effects of new diffeomorphism invariant boundary terms in SL(2,R)$\times$SL(2,R) Chern-Simons theory. The gravitational interpretation corresponds to free AdS$_3$ boundary conditions, without restrictions on the boundary geometry. The bou
Externí odkaz:
http://arxiv.org/abs/1603.03213