Results 71 to 80 of about 70,277 (313)
Spontaneous symmetry breaking and Nambu–Goldstone bosons in quantum many-body systems
, 2010 Spontaneous symmetry breaking is a general principle that constitutes the underlying concept of a vast number of physical phenomena ranging from ferromagnetism and superconductivity in condensed matter physics to the Higgs mechanism in the standard model
Brauner, Tomáš
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Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics
Advanced Engineering Materials, EarlyView.Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost +4 more
wiley +1 more source
Explaining Quantum Spontaneous Symmetry Breaking [PDF]
, 2004 Two alternative accounts of quantum spontaneous symmetry breaking (SSB) are compared and one of them, the decompositional account in the algebraic approach, is argued to be superior for understanding quantum SSB.
Liu, Chuang, Emch, Gerard G.
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Diagnosing strong-to-weak symmetry breaking via Wightman correlators
Communications PhysicsSymmetry plays a fundamental role in quantum many-body physics, and a central concept is spontaneous symmetry breaking. Recent developments highlight new symmetry-breaking patterns known as strong-to-weak spontaneous symmetry breaking, characterized by ...
Zeyu Liu +4 more
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Breaking strong symmetries in dissipative quantum systems: Bosonic atoms coupled to a cavity
Physical Review Research, 2022 In dissipative quantum systems, strong symmetries can lead to the existence of conservation laws and multiple steady states. In this Letter we investigate a strong symmetry for bosonic atoms coupled to an optical cavity, an experimentally relevant system,
Catalin-Mihai Halati +2 more
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Breaking embryo symmetry [PDF]
Science, 2017 Embryogenesis![Figure][1] Loss of cleavage symmetry in the early embryo PHOTO: E. KOROTKEVICH ET AL., DEV. CELL 40 , 235 (6 FEBRUARY 2017) © ELSEVIER For the first few cleavages, cells of the mammalian embryo are considered identical. Subsequently, symmetry is broken to generate the inner cell mass, which specifies the embryo proper, or the ...
openaire +2 more sources
Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
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An introduction to spontaneous symmetry breaking
SciPost Physics Lecture Notes, 2019 Perhaps the most important aspect of symmetry in physics is the idea that a state does not need to have the same symmetries as the theory that describes it. This phenomenon is known as spontaneous symmetry breaking.
Aron J. Beekman, Louk Rademaker, Jasper van Wezel
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Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
Efficient structural symmetry breaking for constraint satisfaction problems [PDF]
, 2007 Symmetry breaking for constraint satisfaction problems (CSPs) has attracted considerable attention in recent years. Various general schemes have been proposed to eliminate symmetries.
Van Hentenryck, Pascal +9 more
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