Results 91 to 100 of about 674,523 (227)

Affine Poisson Groups and WZW Model [PDF]

, 2008
We give a detailed description of a dynamical system which enjoys a Poisson-Lie symmetry with two non-isomorphic dual groups. The system is obtained by taking the $q\to\infty$ limit of the q-deformed WZW model and the understanding of its symmetry ...
Klimcik, Ctirad
core   +4 more sources

F-theory on quotients of elliptic Calabi-Yau threefolds

Journal of High Energy Physics, 2019
In this work we consider quotients of elliptically fibered Calabi-Yau threefolds by freely acting discrete groups and the associated physics of F-theory compactifications on such backgrounds.
Lara B. Anderson, James Gray, Paul-Konstantin Oehlmann   +2 more
doaj   +1 more source

Gauge symmetry enhancement in Hamiltonian formalism

, 2003
We study the Hamiltonian structure of the gauge symmetry enhancement in the enlarged CP(N) model coupled with U(2) Chern-Simons term, which contains a free parameter governing explicit symmetry breaking and symmetry enhancement.
A. D’Adda, A. D’Adda, A.J. Macfarlane, E. Brezin, E. Gava, E. Witten, G. Duerksen, H. Eichenherr, I.A. Batalin, I.A. Batalin, Joohan Lee, L.D. Faddeev, Phillial Oh, R.D. Pisarski, S. Duane, Soon-Tae Hong, T. Itoh, T. Itoh, Tae Hoon Lee, V.L. Golo   +19 more
core   +1 more source

trans-Dibromidotetrakis(pyridine-κN)ruthenium(II)

Acta Crystallographica Section E, 2013
The title complex, [RuBr2(C5H5N)4], contains two independent complex molecules in each of which the RuII atom is located on a site of 222 symmetry and has a distorted octahedral coordination geometry with four pyridine N atoms and two Br atoms.
Xiu-Li Wu, Ru-Fei Ye, Ai-Quan Jia, Qun Chen, Qian-Feng Zhang   +4 more
doaj   +1 more source

Multi-invariants and bulk replica symmetry

Journal of High Energy Physics
In this paper, we analyze the question of replica symmetry in the bulk for multi-partite entanglement measures in the vacuum state of two dimensional holographic CFTs.
Abhijit Gadde, Jonathan Harper, Vineeth Krishna   +2 more
doaj   +1 more source

DISCRETE SYMMETRY, NONCOMMUTATIVE GEOMETRY AND GRAVITY [PDF]

Modern Physics Letters A, 1994
We consider gravity using the formalism of a differential Z2-graded algebra of 2 × 2 matrices whose elements are differential forms on space-time. The connection and the orthonormal frame are extended to incorporate additional scalar and vector fields. The extended torsion-free constraints are solved for a simple case. The resulting action describes a
openaire   +3 more sources

Di-μ-sulfato-bis{[bis(3,5-dimethylpyrazol-1-yl)methane]copper(II)}

Acta Crystallographica Section E, 2008
The molecule of the title compound, [Cu2(SO4)2(C11H16N4)2], sits on a center of symmetry. The CuII atom has a distorted trigonal–bipyramidal coordination geometry comprising three O atoms of the two symmetry-related SO42− anions and two N ...
XiuLi You, XingCong Wang, YanLi Wu
doaj   +1 more source

Deep networks on toroids: removing symmetries reveals the structure of flat regions in the landscape geometry*

, 2022
Fabrizio Pittorino, Antonio Ferraro, Gabriele Perugini, Christoph Feinauer, Carlo Baldassi, Riccardo Zecchina   +5 more
openalex   +2 more sources

Three Dimensional Quantum Geometry and Deformed Poincare Symmetry

, 2008
We study a three dimensional non-commutative space emerging in the context of three dimensional Euclidean quantum gravity. Our starting point is the assumption that the isometry group is deformed to the Drinfeld double D(SU(2)).
Biedenharn L. C., E. Joung, J. Mourad, K. Noui   +3 more
core   +3 more sources

EXPLAINING THE GEOMETRY OF SIMPLE MOLECULES USING MOLECULAR ORBITAL ENERGY-LEVEL DIAGRAMS BUILT BY USING SYMMETRY PRINCIPLES

Química Nova
The built of qualitative energy-level molecular diagrams for different geometries of simple molecules allow to explain the preferred geometry. The diagrams are built using simple symmetry principles and explain, on basis of the number of nonbonding ...
Sérgio P. Machado, Roberto B. Faria
doaj   +1 more source