Results 51 to 60 of about 443,000 (264)
Multi-orientable group field theory [PDF]
Journal of Physics A: Mathematical and Theoretical, 2012 20 pages, 15 figures; v2: more details on the motivation for introducing this class of GFTs have been given; section 2 ("Multi-orientable GFT in three dimensions") has been slightly shortened; several references have been ...
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Continuous point symmetries in group field theories [PDF]
Journal of Physics A: Mathematical and Theoretical, 2017 We discuss the notion of symmetries in non-local field theories characterized by integro-differential equations of motion, from a geometric perspective. We then focus on Group Field Theory (GFT) models of quantum gravity and provide a general analysis of their continuous point symmetry transformations, including the generalized conservation laws ...
Kegeles, Alexander (Dr.) +1 more
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Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Journal of High Energy Physics, 2020 We calculate the torus partition sum of a general CFT2 with left and right moving conserved currents J and J ¯ $$ \overline{J} $$ , perturbed by a combination of the irrelevant operators T T ¯ , J T ¯ $$ T\overline{T},J\overline{T} $$ and T J ¯ $$ T ...
Akikazu Hashimoto, David Kutasov
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Gauge-Invariant Perturbations at a Quantum Gravity Bounce
Universe, 2022 We study the dynamics of gauge-invariant scalar perturbations in cosmological scenarios with a modified Friedmann equation, such as quantum gravity bouncing cosmologies.
Steffen Gielen, Lisa Mickel
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Phosphoinositides and inositol phosphates as molecular glues
FEBS Letters, EarlyView.Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry +9 more
wiley +1 more source
Irreversibility in quantum field theories with boundaries
Journal of High Energy Physics, 2019 We study conformal field theories with boundaries, and their boundary renormalization group (RG) flows, using methods from quantum information theory. Positivity of the relative entropy, together with unitarity and Lorentz invariance, give rise to bounds
Horacio Casini +2 more
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Field Theory and the Cohomology of Some Galois Groups
Journal of Algebra, 2001 We prove that two arithmetically significant extensions of a field F coincide if and only if the Witt ring WF is a group ring Z/n[G]. Furthermore, working modulo squares with Galois groups which are 2-groups, we establish a theorem analogous to Hilbert's Theorem 90 and show that an identity linking the cohomological dimension of the Galois group of the
Adem, Alejandro +3 more
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Addendum to “Relational Hamiltonian for group field theory” [PDF]
Physical Review D, 2019 4 pages, addendum to arXiv:1810 ...
Steffen Gielen +2 more
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Thermofield double states in group field theory [PDF]
International Journal of Modern Physics A, 2021 Group field theories are higher-rank generalizations of matrix/tensor models, and encode the simplicial geometries of quantum gravity. In this paper, we study the thermofield double states in group field theories. The starting point is the equilibrium Gibbs states in group field theory recently found by Kotecha and Oriti, based on which we construct ...
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