Zobrazeno 1 - 10
of 167
pro vyhledávání: '"Mohr, Peter J"'
We examine implications of angles having their own dimension, in the same sense as do lengths, masses, {\it etc.} The conventional practice in scientific applications involving trigonometric or exponential functions of angles is to assume that the ar
Externí odkaz:
http://arxiv.org/abs/2203.12392
Publikováno v:
Metrologia 56 043001 (2019)
The status of angles within The International System of Units (SI) has long been a source of controversy and confusion. We address one specific but crucial issue, putting the case that the idea of angles necessarily being length ratios, and hence dim
Externí odkaz:
http://arxiv.org/abs/1909.08389
Autor:
Mohr, Peter J., Phillips, William D.
We propose that the SI be modified so that the radian is a base unit. Some of the details and consequences of such a modification are examined.
Externí odkaz:
http://arxiv.org/abs/1604.06774
This report gives the 2014 self-consistent set of values of the constants and conversion factors of physics and chemistry recommended by the Committee on Data for Science and Technology (CODATA). These values are based on a least-squares adjustment t
Externí odkaz:
http://arxiv.org/abs/1507.07956
Plans are underway to redefine the International System of Units (SI) around 2018. The New SI specifies the values of certain physical constants to define units. This article explains the New SI in a way that could be used to present it to high-schoo
Externí odkaz:
http://arxiv.org/abs/1503.03496
Autor:
Mohr, Peter J., Phillips, William D.
Publikováno v:
Metrologia 52 40-47 (2015)
The International System of Units (SI) is supposed to be coherent. That is, when a combination of units is replaced by an equivalent unit, there is no additional numerical factor. Here we consider dimensionless units as defined in the SI, {\it e.g.}
Externí odkaz:
http://arxiv.org/abs/1409.2794
Publikováno v:
Physical Review A 89, 042121, 10 p. (2014)
The vacuum-polarization correction for bound electrons or muons is examined. The objective is to formulate a framework for calculating the correction from bound-state quantum electrodynamics entirely in coordinate space, including the Uehling potenti
Externí odkaz:
http://arxiv.org/abs/1402.0439
A bound-state field theory approach to muonic hydrogen is set up using a variant of the Furry representation in which the lowest-order Hamiltonian describes a muon in the presence of a point Coulomb field, but the origin of the binding field is taken
Externí odkaz:
http://arxiv.org/abs/1304.2076
Publikováno v:
Rev. Mod. Phys. 84, 1527-1605 (2012)
This paper gives the 2010 self-consistent set of values of the basic constants and conversion factors of physics and chemistry recommended by the Committee on Data for Science and Technology (CODATA) for international use. The 2010 adjustment takes i
Externí odkaz:
http://arxiv.org/abs/1203.5425
Autor:
Mohr, Peter J.
Publikováno v:
Annals of Physics 325, 607-663 (2010)
Properties of six-component electromagnetic field solutions of a matrix form of the Maxwell equations, analogous to the four-component solutions of the Dirac equation, are described. It is shown that the six-component equation, including sources, is
Externí odkaz:
http://arxiv.org/abs/0910.1874