Results 31 to 40 of about 34,461,409 (228)

Production and backreaction of spin-2 particles of SU(2) gauge field during inflation [PDF]

open access: yesJournal of High Energy Physics, 2018
A bstractPrimordial SU(2) gauge fields with an isotropic background lead to the production of spin-2 particles during inflation. We provide a unified formalism to compute this effect in all of the inflation models with isotropic SU(2) gauge fields such ...
A. Maleknejad, E. Komatsu
semanticscholar   +1 more source

The Geometry of the SU(2) × G2-model [PDF]

open access: yesJournal of High Energy Physics, 2018
A bstractWe study elliptic fibrations that geometrically engineer an SU(2) ×G2 gauge theory realized by a Weierstrass model for the collision III + I0* ns. We find all the distinct crepant resolutions of such a model and the flops connecting them.
M. Esole, M. Kang
semanticscholar   +1 more source

Development and mechanical characteristics of a recyclable self-balancing detection device

open access: yesYantu gongcheng xuebao, 2023
Aiming at the main problems existing in the static load tests on pile foundations, a recyclable self-balancing detection device for the bearing capacity of the pile foundations is developed.
DONG Jianhua 1, 2, YANG Bo 1, 2, TIAN Wentong 1, 2, 3, SU Shilin 1, 2, LIAN Bo 1, 2, LI Jianjun 4
doaj   +1 more source

Schwinger effect by an SU(2) gauge field during inflation [PDF]

open access: yesJournal of High Energy Physics, 2018
A bstractNon-Abelian gauge fields may exist during inflation. We study the Schwinger effect by an SU(2) gauge field coupled to a charged scalar doublet in a (quasi) de Sitter background and the possible backreaction of the generated charged particles on ...
K. Lozanov   +2 more
semanticscholar   +1 more source

Entangled SU(2) and SU(1,1) coherent states [PDF]

open access: yes, 2000
Entangled SU(2) and SU(1,1) coherent states are developed as superpositions of multiparticle SU(2) and SU(1,1) coherent states. In certain cases, these are coherent states with respect to generalized su(2) and su(1,1) generators, and multiparticle parity
Pan, Shao-hua   +2 more
core   +2 more sources

ϵ′/ϵ anomaly and neutron EDM in SU(2)L × SU(2)R × U(1)B−L model with charge symmetry [PDF]

open access: yes, 2018
A bstractThe Standard Model prediction for ϵ′/ϵ based on recent lattice QCD results exhibits a tension with the experimental data. We solve this tension through WR+ gauge boson exchange in the SU(2)L × SU(2)R × U(1)B−L model with ‘charge symmetry’, whose
N. Haba   +2 more
semanticscholar   +1 more source

SU(4)⊃SU(2)⊗SU(2) Projection Techniques [PDF]

open access: yesJournal of Mathematical Physics, 1970
The twofold multiplicity problem associated with the Wigner supermultiplet reduction SU(4)⊃SU(2)⊗SU(2) is resolved by spin-isospin projection techniques analogous to the angular momentum projection technique introduced by Elliott to resolve the SU(3)⊃R(3) multiplicity problem.
openaire   +1 more source

SU(2) Poincaré sphere: A generalized representation for multidimensional structured light

open access: yes, 2020
Structured light, as a general term for arbitrary states of amplitude, phase, and polarization in optical fields, is highly topical because of a myriad of applications it has fostered.
Yijie Shen   +4 more
semanticscholar   +1 more source

SU(2) graph invariants, Regge actions and polytopes [PDF]

open access: yes, 2017
We revisit the the large spin asymptotics of 15j symbols in terms of cosines of the 4d Euclidean Regge action, as derived by Barrett and collaborators using a saddle point approximation.
P. Donà   +3 more
semanticscholar   +1 more source

Metal and insulator states of SU(6) × SU(2) clusters of fermions in one-dimensional optical lattices

open access: yesNew Journal of Physics, 2021
We studied the behavior of mixtures of ^173 Yb (with symmetry up to SU(6)) and ^171 Yb (up to SU(2)) fermionic isotopes loaded in one-dimensional (1D) optical lattices.
M C Gordillo
doaj   +1 more source

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