Results 91 to 100 of about 3,603,035 (255)
Controlling the Center of Mass Motion of Levitated Particles Using Structured Wavefronts
Laser &Photonics Reviews, EarlyView.Optically levitated particles have great potential for quantum‐enhanced sensing. Precise control of the trapping beam is crucial to improve the stability and confinement of these systems. Here, we study how structured wavefronts can be used to control the center‐of‐mass motion of levitated particles, enhancing trap stiffness and enabling stable ...
Shah Jee Rahman +7 more
wiley +1 more source
The Two Extremal Rays of Some Hyper–Kähler Fourfolds
Mathematische Nachrichten, EarlyView.ABSTRACT We consider projective Hyper–Kähler manifolds of dimension 4 that are deformation equivalent to Hilbert squares of K3 surfaces. In case such a manifold admits a divisorial contraction, the exceptional divisor is a conic bundle over a K3 surface. A classification of lattice embeddings implies that there are five types of such conic bundles.
Federica Galluzzi, Bert van Geemen
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Galois points on singular plane quartic curves [PDF]
, 2005 We study the structure of function fields of plane curves following our method developed in [K. Miura, H. Yoshihara, Field theory for function fields of plane quartic curves, J. Algebra 226 (2000) 283–294].
Miura, Kei
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BRST methods for constructing quartic actions for spinning black holes
Journal of High Energy PhysicsWe develop a systematic approach to the computation of gauge invariant quartic interactions between reducible massive and massless higher spin fields. Extending the BRST formulation of existing cubic results, we obtain a single constraint for each off ...
Julian Lang, Mirian Tsulaia
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Journal of Applied Crystallography, EarlyView.This study emphasizes the physical interpretation of Stephens' phenomenological parameters with respect to the nature of dislocations in cubic symmetry, validated through illustrative examples based on modified Williamson–Hall plot analysis.Both the Stephens phenomenological model and the modified Williamson–Hall (mWH) plot analysis address the ...
Ashok Bhakar +3 more
wiley +1 more source
General scalar renormalisation group equations at three-loop order
Journal of High Energy Physics, 2020 For arbitrary scalar QFTs in four dimensions, renormalisation group equations of quartic and cubic interactions, mass terms, as well as field anomalous dimensions are computed at three-loop order in the MS ¯ $$ \overline{\mathrm{MS}} $$ scheme. Utilising
Tom Steudtner
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German Coalition Politics: Between Pluralist Stagnation and Crisis‐Driven Welfare Retrenchment
The Political Quarterly, EarlyView.Abstract The current German coalition government of the centre‐right Christian Democrats (CDU/CSU) and the centre‐left Social Democrats (SPD) has spent its first year in office preparing for a major round of welfare state retrenchment. However, the coalition lacks a coherent political project.
Jörg Michael Dostal
wiley +1 more source
Quartic integral polynomial Pell equations
Journal of Number TheoryIn this paper we classify all monic, quartic, polynomials $d(x)\in\mathbb{Z}[x]$ for which the Pell equation $$f(x)^2-d(x)g(x)^2=1$$ has a non-trivial solution with $f(x),g(x)\in\mathbb{Z}[x]$.
Scherr, Zachary, Thompson, Katherine
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Some Quartic Diophantine Equations of Genus 3 [PDF]
Proceedings of the American Mathematical Society, 1966 About 45 years ago [Proc. Lond. Math. Soc. (2) 13, 60--80 (1913; JFM 44.0230.03)] the author conjectured that there are only a finite number of solutions of a polynomial equation in two variables and of genus \(>1\). In this paper three theorems, relevant to the conjecture, are proved for some quartics which in general are of genus 3 since they have no
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Pseudonyms, Propaganda, and Prints: The Life and Political Caricatures of William Dent, 1782–931
Journal for Eighteenth-Century Studies, EarlyView.Abstract ‘Dent was probably an amateur and nothing is known of his life’, state Bryant and Heneage. Despite contributing to caricature's ‘golden age’, William Dent remains overlooked compared to contemporaries like James Gillray. Dent's extensive portfolio (1782–93) and rumoured role as a Pittite propagandist have not secured his place in the canon of ...
Callum D. Smith
wiley +1 more source