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Search Publications by: Peter J. Mohr (Fed)

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Displaying 26 - 50 of 338

CODATA Recommended Values of the Fundamental Physical Constants: 2010

March 1, 2012
Author(s)
Peter J. Mohr, Barry N. Taylor, David B. Newell
This paper give 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 into

The New SI: The Role of CODATA

December 1, 2011
Author(s)
David B. Newell, Peter J. Mohr, Barry N. Taylor
The mission of the International Council for Science : Committee on Data for Science and Technology (CODATA ) is to strengthen international science for the benefit of society by promoting improved scientific and technical data management and use. One of

Adopting the International System of Units to the 21st century

March 1, 2011
Author(s)
Peter J. Mohr, Ian M. Mills, Terry Quinn, Barry N. Taylor, Edwin R. Williams
We review the proposal of the International Committee for Weights and Measures (CIPM), currently being considered by the General Conference on Weights and Measures (CGPM), to revise the International System of Units, the SI. The proposal includes new

Black-Body Radiation Correction in the Polarizability of Helium

March 1, 2011
Author(s)
Peter J. Mohr, M. Puchalski, Ulrich D. Jentschura
The correction to the polarizability of helium due to black-body radiation is calculated near room temperature. A precise theoretical determination of the black-body radiation correction to the polarizability of helium is essential for dielectric gas

Thermal Correction to the Molar Polarizability of a Boltzmann Gas (Brief Report)

March 1, 2011
Author(s)
Ulrich D. Jentschura, M. Puchalski, Peter Mohr
The metrology of fundamental quantities in atomic physics has been crucial for a number of advanced determinations of fundamental constants. In addition to very accurate frequency measurements, the molar polarizability of atomic gases has recently been

Resource Letter FC-1: The physics of fundamental constants

April 1, 2010
Author(s)
Peter J. Mohr, David B. Newell
This Resource Letter is a guide to the literature describing both experimental and theoretical work on the determination of values of certain fundamental physical constants. In this Letter, fundamental physical constants are taken to be the experimentally

Fundamental constants and tests of theory in Rydberg states of one-electron ions

March 19, 2010
Author(s)
Ulrich D. Jentschura, Peter Mohr, Joseph N. Tan
The nature of the theory of circular Rydberg states of hydrogenlike ions allows highly-accurate predictions to be made for energy levels. In particular, uncertainties arising from the problematic nuclear size correction which beset low angular-momentum

Solutions of the Maxwell equations and photon wave functions

November 26, 2009
Author(s)
Peter J. Mohr
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

Fundamental constants and tests of theory in Rydberg states of hydrogenlike ions

July 1, 2009
Author(s)
Ulrich D. Jentschura, Peter Mohr, Joseph N. Tan, Benedikt J. Wundt
A comparison of precision frequency measurements to quantum electrodynamic (QED) theoretical predictions can be used to test theory and to obtain information regarding fundamental constants. We find that for Rydberg states, theoretical uncertainties due to

Calculation of Hydrogenic Bethe Logarithms for Rydberg States

October 16, 2008
Author(s)
U Jentschura, Peter J. Mohr
We describe the calculation of hydrogenic (one-loop) Bethe logarithms for all states with principal quantum numbers n 200. While the calculation of the Bethe logarithm is a rather easy computational problem involving only the nonrelativistic a (Schr'dinger

Constants, Fundamental

October 16, 2008
Author(s)
Barry N. Taylor, Peter J. Mohr
This article touches upon three main topics: (1) the motivation for the romance of the next decimal place, or why the fundamental physical constants are important and why their determination with ever smaller uncertainties can have a profound effect on