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Redefinition of the kilogram, ampere, kelvin and mole: a proposed approach to implementing CIPM recommendation 1 (CI-2005)

- I. Mills, P. Mohr, T. Quinn, B. Taylor, E. Williams
- Physics
- 6 April 2006

The International System of Units (SI) is founded on seven base units, the metre, kilogram, second, ampere, kelvin, mole and candela corresponding to the seven base quantities of length, mass, time,… Expand

New Experimental Test of Coulomb's Law: A Laboratory Upper Limit on the Photon Rest Mass

- E. Williams, J. Faller, H. A. Hill
- Physics
- 22 March 1971

A high-frequency test of Coulomb's law is described. The sensitivity of the experiment is given in terms of a finite photon rest mass using the Proca equations. The null result of our measurement… Expand

Towards an electronic kilogram: an improved measurement of the Planck constant and electron mass

- R. Steiner, E. Williams, D. Newell, R. Liu
- Physics
- 1 October 2005

The electronic kilogram project of NIST has improved the watt balance method to obtain a new determination of the Planck constant h by measuring the ratio of the SI unit of power W to the electrical… Expand

Uncertainty Improvements of the NIST Electronic Kilogram

- R. Steiner, E. Williams, Ruimin Liu, D. Newell
- PhysicsIEEE Transactions on Instrumentation and…
- 12 March 2007

TLDR

Details of the 1998 Watt Balance Experiment Determining the Planck Constant

- R. Steiner, D. Newell, E. Williams
- PhysicsJournal of research of the National Institute of…
- 1 February 2005

The National Institute of Standards and Technology (NIST) watt balance experiment completed a determination of Planck constant in 1998 with a relative standard uncertainty of 87 × 10−9 (k = 1),… Expand

A new low-field determination of the proton gyromagnetic ratio in water

- E. Williams, George R. Jones,
+5 authors H. Layer - Physics
- 1 April 1989

The proton gyromagnetic ratio in water has been measured by the low field method using atomic magnetic resonance in /sup 4/He, a multicurrent solenoid and an induction method for the dimensional… Expand

The asymptotic behavior of a random walk on a dual-medium lattice

- C. Heyde, M. Westcott, E. Williams
- Mathematics
- 1 June 1982

This paper considers the asymptotic distribution for the horizontal displacement of a random walk in a medium represented by a two-dimensional lattice, whose transitions are to nearest-neighbor… Expand

Redefinition of the kilogram: a decision whose time has come

- I. Mills, P. Mohr, T. Quinn, B. Taylor, E. Williams
- Physics
- 28 February 2005

The kilogram, the base unit of mass in the International System of Units (SI), is defined as the mass of the international prototype of the kilogram. Clearly, this definition has the effect of fixing… Expand

Adapting the International System of Units to the twenty-first century

- I. Mills, P. Mohr, T. Quinn, B. Taylor, E. Williams
- PhysicsPhilosophical Transactions of the Royal Society A…
- 28 October 2011

TLDR

Direct observation of macroscopic charge quantization

- P. Lafarge, H. Pothier, E. Williams, D. Estève, C. Urbina, M. Devoret
- Physics
- 1 October 1991

The circuit formed by a nanoscale tunnel junction in series with a capacitance and a voltage source is the building block of most multi-junction circuits of single electronics. The state of this… Expand

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