Results 11 to 20 of about 70,277 (313)

Covert symmetry breaking [PDF]

open access: yesJournal of High Energy Physics, 2020
Reduction from a higher-dimensional to a lower-dimensional field theory can display special features when the zero-level ground state has nontrivial dependence on the reduction coordinates.
C. W. Erickson   +3 more
doaj   +5 more sources

Fast self-healing in a layered molecular crystal mediated by stress-induced symmetry breaking [PDF]

open access: yesNature Communications
In recent years, symmetry-breaking has emerged as a powerful tool for significantly altering various physical properties in 2D layered materials. However, the breaking of symmetry by means of mechanical stress in organic crystals remains elusive.
Ishita Ghosh   +9 more
doaj   +2 more sources

Ultrafast probing of isotope-induced explicit symmetry breaking in ethylene [PDF]

open access: yesCommunications Chemistry
Symmetry governs nature’s laws, yet many of the natural phenomena occur due to the breakdown of symmetry. Here, we show how isotope-induced inversion symmetry breaking influences ultrafast photoisomerization processes in ethylene.
Alessandro Nicola Nardi   +6 more
doaj   +2 more sources

Symmetries and symmetry breaking [PDF]

open access: yesNuclear Physics A, 2001
In understanding the world of matter, the introduction of symmetry principles following experimentation or using the predictive power of symmetry principles to guide experimentation is most profound. The conservation of energy, linear momentum, angular momentum, charge, and CPT involve fundamental symmetries.
  +7 more sources

Symmetry and symmetry breaking in science and arts

open access: yesProceedings (European Academy of Sciences and Arts), 2022
In this review article, symmetry and symmetry breaking are considered as complementary principles in science and arts. It starts with symmetry and symmetry breaking in early world views of nature and art.
Klaus Mainzer
doaj   +1 more source

Breaking Symmetries [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2010
A well-known result by Palamidessi tells us that πmix(the π-calculus with mixed choice) is more expressive than πsep(its subset with only separate choice). The proof of this result analyses their different expressive power concerning leader election in symmetric networks.
Kirstin Peters, Uwe Nestmann
openaire   +8 more sources

Bottom quark and tau lepton masses in a toy $$\textrm{SU}(6)$$ SU ( 6 ) model

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We study a toy $$\textrm{SU}(6)$$ SU ( 6 ) model with the symmetry breaking pattern of the extended 331 symmetry of $$\textrm{SU}(3)_c \otimes \textrm{SU}(3)_W \otimes \textrm{U}(1)_X$$ SU ( 3 ) c ⊗ SU ( 3 ) W ⊗ U ( 1 ) X .
Ning Chen, Ying-nan Mao, Zhaolong Teng
doaj   +1 more source

Symmetry Breaking in Graphs [PDF]

open access: yesThe Electronic Journal of Combinatorics, 1996
A labeling of the vertices of a graph G, $\phi :V(G) \rightarrow \{1,\ldots,r\}$, is said to be $r$-distinguishing provided no automorphism of the graph preserves all of the vertex labels. The distinguishing number of a graph G, denoted by $D(G)$, is the minimum $r$ such that $G$ has an $r$-distinguishing labeling.
Michael O. Albertson, Karen L. Collins
openaire   +2 more sources

Effects of symmetry-breaking on electromagnetic backscattering

open access: yesScientific Reports, 2021
Systems with a discrete rotational symmetry $$2\pi /n$$ 2 π / n where $$n\ge 3$$ n ≥ 3 that also have electromagnetic duality symmetry exhibit zero backscattering.
Mohamed Ismail Abdelrahman   +3 more
doaj   +1 more source

Selection rules for breaking selection rules

open access: yesNew Journal of Physics, 2021
Floquet systems often exhibit dynamical symmetries (DS) that govern the time-dependent dynamics and result in selection rules. When a DS is broken, selection rule deviations are expected.
Matan Even Tzur   +3 more
doaj   +1 more source

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