Gibbsing spacetime: a group field theory approach to equilibrium in quantum gravity
New Journal of Physics, 2018 The symmetries, subtle nature of observables, and lack of a preferred notion of time evolution all make defining a quantum statistical mechanics of general relativity difficult.
Hal M Haggard
doaj +1 more source
Heavy handed quest for fixed points in multiple coupling scalar theories in the ε expansion
Journal of High Energy Physics, 2021 The tensorial equations for non trivial fully interacting fixed points at lowest order in the ε expansion in 4 − ε and 3 − ε dimensions are analysed for N-component fields and corresponding multi-index couplings λ which are symmetric tensors with four or
Hugh Osborn, Andreas Stergiou
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Renormalization of Group Field Theories for Quantum Gravity: New Computations and Some Suggestions
Frontiers in Physics, 2021 We discuss motivation and goals of renormalization analyses of group field theory models of simplicial 4d quantum gravity, and review briefly the status of this research area.
Marco Finocchiaro +2 more
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Functional renormalization group approach for tensorial group field theory: a rank-6 model with closure constraint [PDF]
, 2015 We develop the functional renormalization group formalism for a tensorial group field theory with closure constraint, in the case of a just renormalizable model over U ( 1 ) ⨂ 6 , with quartic interactions. The method allows us to obtain a closed but non-
D. Benedetti, Vincent Lahoche
semanticscholar +1 more source
Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source
Dilogarithm Identities in Conformal Field Theory and Group Homology
, 1993 Recently, Rogers' dilogarithm identities have attracted much attention in the setting of conformal field theory as well as lattice model calculations. One of the connecting threads is an identity of Richmond-Szekeres that appeared in the computation of ...
A. Borel +31 more
core +1 more source
Functional Renormalization Group analysis of a Tensorial Group Field Theory on [PDF]
, 2015 We study a model of Tensorial Group Field Theory (TGFT) on from the point of view of the Functional Renormalization Group (FRG). This is the first attempt to apply a renormalization procedure to a TGFT model defined over a non-compact group manifold.
Joseph Ben Geloun +2 more
semanticscholar +1 more source
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
Properties of the є-expansion, Lagrange inversion and associahedra and the O (1) model
Journal of High Energy Physics, 2020 We discuss properties of the є-expansion in d = 4 − є dimensions. Using Lagrange inversion we write down an exact expression for the value of the Wilson-Fisher fixed point coupling order by order in є in terms of the beta function coefficients.
Thomas A. Ryttov
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Renormalization of an Abelian tensor group field theory: solution at leading order [PDF]
, 2015 A bstractWe study a just-renormalizable tensorial group field theory of rank six with quartic melonic interactions and Abelian group U(1). We introduce the formalism of the intermediate field, which allows a precise characterization of the leading order ...
Vincent Lahoche, D. Oriti, V. Rivasseau
semanticscholar +1 more source