On the non-classical structure of the vacuum

1987 ◽  
Vol 123 (3) ◽  
pp. 115-118 ◽  
Author(s):  
Lawrence J. Landau
Keyword(s):  
Classical Structure

scholarly journals The Classical Structure of TaCp2(H)(SiMe2H)2

1999 ◽  
Vol 23 (1) ◽  
pp. 14-15
Author(s):  
Ichiro Tanaka ◽  
Takashi Ohhara ◽  
Nobuo Niimura ◽  
Yuji Ohashi ◽  
Qian Jiang ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Analysis ◽  
Neutron Diffraction Analysis ◽  
Classical Structure ◽  
R Factor ◽  
Symmetric Structure ◽  
Hydride Ligand

Neutron diffraction analysis of TaCp2(H)(SiMe2H)2 (1) has revealed a symmetric structure with a classical, rather than agostic, hydride ligand: the Ta–H distance is 1.785(15) Å, the non-bonding H···Si distances are 2.189(18) and 2.190(17) Å, and the H–Ta–Si angles are 55.2(5) and 55.5(5)°; final R factor = 8.9% for 1295 reflections.

PATH INTEGRAL QUANTIZATION OF SUPERSTRING

2010 ◽  
Vol 25 (02) ◽  
pp. 135-141
Author(s):  
H. A. ELEGLA ◽  
N. I. FARAHAT
Keyword(s):  
Phase Space ◽  
Differential Equations ◽  
Path Integral ◽  
Equations Of Motion ◽  
Singular System ◽  
Constrained Systems ◽  
Classical Structure ◽  
Path Integral Quantization ◽  
Total Differential

Motivated by the Hamilton–Jacobi approach of constrained systems, we analyze the classical structure of a four-dimensional superstring. The equations of motion for a singular system are obtained as total differential equations in many variables. The path integral quantization based on Hamilton–Jacobi approach is applied to quantize the system, and the integration is taken over the canonical phase space coordinates.

scholarly journals Gramatica Critică Sau Critica Gramaticii?

2020 ◽  
Vol 21 (1-2) ◽  
pp. 299-301
Author(s):  
Valerica Sporiş
Keyword(s):  
Publishing House ◽  
Grammatical Structure ◽  
Classical Structure ◽  
National Conference ◽  
The University ◽  
Normative Aspect ◽  
Literary Phenomenon

Abstract Gramatica critică a limbii române (The Critical Grammar of the Romanian Language), authored by Ștefan Găitănaru, was published in 2018, at the University of Pitești Publishing House. The launch of this book took place during the National Conference on Adaptation, Conservation and Rejection in the Evolution of the Romanian Cultural/ Linguistic/ Literary Phenomenon, held at the Faculty of Letters in Sibiu, on May 24, 2019. The purpose of the book, mentioned by the author in the Preface, is to update the grammar research, emphasizing the normative aspect. Thus, we witness a descriptive-normative grammar, with a classical structure: part I - Morphology and part II - Syntax, each section comprising the description, analysis and interpretation of specific components. This Critical Grammar brings to the surface controversial aspects regarding the grammatical structure of the Romanian language, with pertinent observations and recommendations, with solid arguments, for or against, from case to case.

Planck’s Derivation of E=hν

2020 ◽  
pp. 19-34
Author(s):  
Jim Baggott
Keyword(s):  
Albert Einstein ◽  
Black Body ◽  
Black Body Radiation ◽  
Theoretical Interpretation ◽  
Irreversible Processes ◽  
Second Law ◽  
Statistical Interpretation ◽  
Classical Structure ◽  
Quantum Nature ◽  
Quantum Revolution

Planck was unwilling to accept Boltzmann’s statistical interpretation of the second law. He therefore needed to find a way to show how irreversible processes could result from continuous matter. Planck chose the physics of black body radiation as a battleground. After discovering his radiation law in October 1900, he sought a deeper theoretical interpretation for it. Now thermodynamics is not the most obvious place to look for evidence of the quantum nature of radiation and, in an ‘act of desperation’, Planck had to torture the theory in a way that would eventually allow this conclusion to emerge from an entirely classical structure. Planck’s derivation heralded the very beginning of the quantum revolution, but only in promise, not in deed. The revolution began in earnest in 1905 with the help of Albert Einstein.

Blake, Foucault, and the Classical Episteme

PMLA ◽  
1981 ◽  
Vol 96 (3) ◽  
pp. 388-407 ◽  
Author(s):  
Daniel Stempel
Keyword(s):  
Literary History ◽  
Deep Structure ◽  
Historical Change ◽  
Classical Structure ◽  
Archaeological Method

The accepted periodization of English literary history, a linear alternation of convention and revolt, has made Blake the ancestral and archetypal romantic. But an examination of the language of his texts, using Michel Foucault's archaeological method, demonstrates the classical structure of his oeuvre, which is a variant of classical discourse as defined and described by Foucault. The deep structure of Blake's discourse is logical, but the logic is not that of general grammar; it is the logic of identity, not the logic of difference. The assimilation of Blake's oeuvre into Foucault's classical episteme enriches and expands Foucault's model of the period; it also offers a model of the transformation from classical to modern that may clarify some of the difficulties of Foucault's scheme of historical change.

scholarly journals A Garside-theoretic analysis of the Burau representations

2017 ◽  
Vol 26 (07) ◽  
pp. 1750040
Author(s):  
Matthieu Calvez ◽  
Tetsuya Ito
Keyword(s):  
Braid Group ◽  
Theoretic Analysis ◽  
Burau Representation ◽  
Classical Structure ◽  
Braid Index

We establish relations between both the classical and the dual Garside structures of the braid group and the Burau representation. Using the classical structure, we formulate a non-vanishing criterion for the Burau representation of the 4-strand braid group. In the dual context, it is shown that the Burau representation for arbitrary braid index is injective when restricted to the set of simply-nested braids.

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