Results 51 to 60 of about 3,196 (276)
Magic fermions: Carroll and flat bands
Journal of High Energy Physics, 2023 The Carroll algebra is constructed as the c → 0 limit of the Poincare algebra and is associated to symmetries on generic null surfaces. In this paper, we begin investigations of Carrollian fermions or fermions defined on generic null surfaces. Due to the
Arjun Bagchi +4 more
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Shift operators from the simplex representation in momentum-space CFT
Journal of High Energy Physics, 2023 We derive parametric integral representations for the general n-point function of scalar operators in momentum-space conformal field theory. Recently, this was shown to be expressible as a generalised Feynman integral with the topology of an (n − 1 ...
Francesca Caloro, Paul McFadden
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Finite-size and finite bond dimension effects of tensor network renormalization [PDF]
Physical review B, 2023 We propose a general procedure for extracting the running coupling constants of the underlying field theory of a given classical statistical model on a two-dimensional lattice, combining tensor network renormalization (TNR) and the finite-size scaling ...
Atsushi Ueda, M. Oshikawa
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The inflationary wavefunction from analyticity and factorization [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 We study the analytic properties of tree-level wavefunction coefficients in quasi-de Sitter space. We focus on theories which spontaneously break dS boost symmetries and can produce significant non-Gaussianities.
David Meltzer
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A scaling limit for line and surface defects
Journal of High Energy Physics, 2022 We study symmetry-breaking line defects in the Wilson-Fisher theory with O(2N + 1) global symmetry near four dimensions and symmetry-preserving surface defects in a cubic model with O(2N) global symmetry near six dimensions.
D. Rodriguez-Gomez
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The Gross-Neveu-Yukawa archipelago
Journal of High Energy Physics, 2023 We perform a bootstrap analysis of a mixed system of four-point functions of bosonic and fermionic operators in parity-preserving 3d CFTs with O(N) global symmetry. Our results provide rigorous bounds on the scaling dimensions of the O(N)-symmetric Gross-
Rajeev S. Erramilli +5 more
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Conformal symmetry in quantum gravity [PDF]
The European Physical Journal CWe study the problem of how to derive conformal symmetry in the framework of quantum gravity. We start with a generic gravitational theory which is invariant under both the general coordinate transformation (GCT) and Weyl transformation (or equivalently,
Ichiro Oda
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Pseudoconformal equation of state in compact-star matter from topology change and hidden symmetries of QCD [PDF]
Science China Physics Mechanics and Astronomy, 2018 We construct a new effective field theory approach to the equation of state (EoS), dubbed pseudo-confomal model “PCM”, for nuclear and compact star matter entirely in terms of effective hadron degrees of freedom.
Yong-Liang Ma +3 more
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Dualities between fermionic theories and the Potts model
Journal of High Energy Physics, 2023 We show that a large class of fermionic theories are dual to a q → 0 limit of the Potts model in the presence of a magnetic field. These can be described using a statistical model of random forests on a graph, generalizing the (unrooted) random forest ...
Vladimir Narovlansky
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Conformal Invariance and Vector Operators in the O(N) Model [PDF]
Journal of statistical physics, 2019 It is widely expected that, for a large class of models, scale invariance implies conformal invariance. A sufficient condition for this to happen is that there exists no integrated vector operator, invariant under all internal symmetries of the model ...
Gonzalo De Polsi +2 more
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