Results 131 to 140 of about 1,158,452 (384)
Note on the gauge symmetries of unimodular gravity [PDF]
Physical Review D, 2016 4 pages, v2: acknowledgments ...
Sergio González-Martín +4 more
openaire +4 more sources
Horizontal symmetry in Higgs sector of GUT with U(1)_A symmetry
, 2004 In a series of papers, we pointed out that an anomalous $U(1)_A$ gauge symmetry naturally solves various problems in grand unified theories (GUTs) and that a horizontal gauge symmetry, $SU(2)_H$ or $SU(3)_H$, not only realizes the unification of three ...
+32 more
core +1 more source
Dark matter and dark force in the type-I inert 2HDM with local U(1)H gauge symmetry [PDF]
, 2014 A bstractWe discuss dark matter (DM) physics in the Type-I inert two-Higgs-doublet model (2HDM) with local U(1)H Higgs gauge symmetry, which is assigned to the extra Higgs doublet in order to avoid the Higgs-mediated flavor problems. In this gauged inert
P. Ko, Y. Omura, Chaehyun Yu
semanticscholar +1 more source
Reparametrization Invariance as Gauge Symmetry
International Journal of Theoretical Physics, 1999 Reparametrization invariance being treated as a gauge symmetry shows some specific peculiarities. We study these peculiarities both from a general point of view and on concrete examples. We consider the canonical treatment of reparametrization invariant systems in which one fixes the gauge on the classical level by means of time-dependent gauge ...
G. Fulop +2 more
openaire +3 more sources
Neural Network Adaptive Control With Long Short‐Term Memory
International Journal of Adaptive Control and Signal Processing, EarlyView.ABSTRACT In this study, we propose a novel adaptive control architecture that provides dramatically better transient response performance compared to conventional adaptive control methods. This is accomplished by the synergistic employment of a traditional adaptive neural network (ANN) controller and a long short‐term memory (LSTM) network.
Emirhan Inanc +4 more
wiley +1 more source
Quantum gravity from Weyl conformal geometry
European Physical Journal C: Particles and FieldsWe review recent developments in physical implications of Weyl conformal geometry. The associated Weyl quadratic gravity action is a gauge theory of the Weyl group of dilatations and Poincaré symmetry.
D. M. Ghilencea
doaj +1 more source
Dilaton from tractor and matter field from twistor
Journal of High Energy Physics, 2019 Conformal tractors and twistors can be obtained via gauge reduction of the conformal Cartan geometry, thanks to the dressing field method. Perhaps surprisingly, it is possible to reduce the gauge symmetry further still.
J. François
doaj +1 more source
Dimensional oxidization on coset space
Journal of High Energy Physics, 2020 In the matrix model approaches of string/M theories, one starts from a generic symmetry gl(∞) to reproduce the space-time manifold. In this paper, we consider the generalization in which the space-time manifold emerges from a gauge symmetry algebra which
Koichi Harada +3 more
doaj +1 more source
Weyl gauge-vector and complex dilaton scalar for conformal symmetry and its breaking [PDF]
, 2015 Instead of the scalar “dilaton” field that is usually adopted to construct conformally invariant Lagrangians for gravitation, we here propose a hybrid construction, involving both a complex dilaton scalar and a Weyl gauge-vector, in accord with Weyl’s ...
H. Ohanian
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.In this study, the mechanical response of Y‐shaped core sandwich beams under compressive loading is investigated, using deep feed‐forward neural networks (DFNNs) for predictive modeling. The DFNN model accurately captures stress–strain behavior, influenced by design parameters and loading rates.
Ali Khalvandi +4 more
wiley +1 more source