scholarly journals Corrigendum to “Comparative Aspects of Spin-Dependent Interaction Potentials for Spin-1/2 and Spin-1 Matter Fields”

2017 ◽  
Vol 2017 ◽  
pp. 1-2 ◽  
Author(s):  
P. C. Malta ◽  
L. P. R. Ospedal ◽  
K. Veiga ◽  
J. A. Helayël-Neto
Keyword(s):  
Interaction Potentials ◽  
Matter Fields ◽  
Dependent Interaction

scholarly journals Comparative Aspects of Spin-Dependent Interaction Potentials for Spin-1/2 and Spin-1 Matter Fields

2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
P. C. Malta ◽  
L. P. R. Ospedal ◽  
K. Veiga ◽  
J. A. Helayël-Neto
Keyword(s):  
Comparative Study ◽  
Electromagnetic Interaction ◽  
Elementary Particles ◽  
Massive Scalar ◽  
Charged Matter ◽  
Different Types ◽  
Pseudo Scalar ◽  
Matter Fields ◽  
Vector Particles ◽  
Dependent Interaction

This paper sets out to establish a comparative study between classes of spin- and velocity-dependent potentials for spin-1/2 and spin-1 matter currents/sources in the nonrelativistic regime. Both (neutral massive) scalar and vector particles are considered to mediate the interactions between (pseudo-)scalar sources or (pseudo-)vector currents. Though our discussion is more general, we contemplate specific cases in which our results may describe the electromagnetic interaction with a massive (Proca-type) photon exchanged between two spin-1/2 or two spin-1 carriers. We highlight the similarities and peculiarities of the potentials for the two different types of charged matter and also focus our attention on the comparison between the particular aspects of two different field representations for spin-1 matter particles. We believe that our results may contribute to a further discussion of the relation between charge, spin, and extensibility of elementary particles.

Angle dependent interaction potentials for NOAr, NOKr and NOXe derived from various total collision cross section data

1980 ◽  
Vol 52 (1-2) ◽  
pp. 211-225 ◽  
Author(s):  
H.H.W. Thuis ◽  
S. Stolte ◽  
J. Reuss ◽  
J.J.H. Van Den Biesen ◽  
C.J.N. Van Den Meijdenberg
Keyword(s):  
Cross Section ◽  
Collision Cross Section ◽  
Cross Section Data ◽  
Interaction Potentials ◽  
Section Data ◽  
Total Collision ◽  
Dependent Interaction

Shape Dynamics and the Linking Theory

2018 ◽  
Author(s):  
Flavio Mercati
Keyword(s):  
Phase Space ◽  
Degrees Of Freedom ◽  
Line Element ◽  
Hamiltonian Formulation ◽  
Operational Definition ◽  
Extended Phase Space ◽  
Extended Phase ◽  
Problem Of Time ◽  
Definition Of ◽  
Matter Fields

This chapter explains in detail the current Hamiltonian formulation of SD, and the concept of Linking Theory of which (GR) and SD are two complementary gauge-fixings. The physical degrees of freedom of SD are identified, the simple way in which it solves the problem of time and the problem of observables in quantum gravity are explained, and the solution to the problem of constructing a spacetime slab from a solution of SD (and the related definition of physical rods and clocks) is described. Furthermore, the canonical way of coupling matter to SD is introduced, together with the operational definition of four-dimensional line element as an effective background for matter fields. The chapter concludes with two ‘structural’ results obtained in the attempt of finding a construction principle for SD: the concept of ‘symmetry doubling’, related to the BRST formulation of the theory, and the idea of ‘conformogeometrodynamics regained’, that is, to derive the theory as the unique one in the extended phase space of GR that realizes the symmetry doubling idea.

scholarly journals Hierarchical structure of physical Yukawa couplings from matter field Kähler metric

2021 ◽  
Vol 2021 (7) ◽  
Author(s):  
Keiya Ishiguro ◽  
Tatsuo Kobayashi ◽  
Hajime Otsuka
Keyword(s):  
String Theory ◽  
Hierarchical Structure ◽  
Matter Field ◽  
Heterotic String ◽  
Heterotic String Theory ◽  
Kähler Metric ◽  
Yukawa Couplings ◽  
String Compactifications ◽  
Kahler Metric ◽  
Matter Fields

Abstract We study the impacts of matter field Kähler metric on physical Yukawa couplings in string compactifications. Since the Kähler metric is non-trivial in general, the kinetic mixing of matter fields opens a new avenue for realizing a hierarchical structure of physical Yukawa couplings, even when holomorphic Yukawa couplings have the trivial structure. The hierarchical Yukawa couplings are demonstrated by couplings of pure untwisted modes on toroidal orbifolds and their resolutions in the context of heterotic string theory with standard embedding. Also, we study the hierarchical couplings among untwisted and twisted modes on resolved orbifolds.

scholarly journals Morphology Dependent Interaction between Co(II)-tetraphenylporphyrin and the MgO(100) surface

2021 ◽  
Author(s):  
Silviya Ninova ◽  
Osman Baris Malcioglu ◽  
Philipp Auburger ◽  
Matthias Franke ◽  
Ole Lytken ◽  
...  
Keyword(s):  
Hybrid Systems ◽  
Electronic Device ◽  
Inorganic Hybrid ◽  
Wide Range ◽  
Device Properties ◽  
Dependent Interaction

Porphyrins are key elements in organic-inorganic hybrid systems for a wide range of applications. Understanding their interaction with the substrate gives a handle on structural and electronic device properties. Here...

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