Trialogue on the number of fundamental constants

  title={Trialogue on the number of fundamental constants},
  author={M J Duff and Lev Borisovich Okun and Gabriele Veneziano},
  journal={Journal of High Energy Physics},
This paper consists of three separate articles on the number of fundamental dimensionful constants in physics. We started our debate in summer 1992 on the terrace of the famous CERN cafeteria. In the summer of 2001 we returned to the subject to find that our views still diverged and decided to explain our current positions. LBO develops the traditional approach with three constants, GV argues in favor of at most two (within superstring theory), while MJD advocates zero. 

Fundamental constants in effective theory

In the discussion between L.B. Okun, G. Veneziano, and M.J. Duff concerning the number of fundamental dimensionful constants in physics [9], they advocated, respectively, 3, 2, and 0 fundamental

Note on a new fundamental length scale l instead of the Newtonian constant G

The newly proposed entropic gravity suggests gravity as an emergent force rather than a fundamental one. In this approach, the Newtonian constant G does not play a fundamental role any more, and a

Testing the variation of fundamental constants with astrophysical and spectroscopic data

In many theories of unified interactions, there are additional degrees of freedom that may allow for the variation of the fundamental constants of nature. I will review the motivation for and

A stellar test of the physics of unification

We discuss the feasibility of using solar-type main-sequence stars as probes of fundamental physics and unification. We use a simple polytropic stellar structure model and study its sensitivity to

Comment on Time-variation of Fundamental Constants 1 Black Holes and Varying Constants

The possible time variation of dimensionless fundamental constants of nature, such as the fine-structure constant α, is a legitimate subject of physical enquiry. are merely human constructs whose

Principles for Quantization of Gravitation

Summary of articles [1, 2] is shown, and a new approach to quantum gravity is presented. It is based on suppositions that masses of black holes can be smaller than Planck’s mass, that dimensionless

Postulates and Prejudices in Fundamental Physics

A new view on quantum gravity is presented, among others a new step toward quantization of gravity is presented. A model is also developed, where the elementary particles are black holes. This

The Spinorial Covariant Derivative

In the calculations that follow we will specify our metric signature as needed. We adopt the convention that upper case latin indices run over (0, 1, 2, 3) while greek indices are coordinate indices,

The status of varying constants: a review of the physics, searches and implications

  • C. Martins
  • Physics
    Reports on progress in physics. Physical Society
  • 2017
Recent developments in tests of the stability of nature's fundamental couplings provide a direct handle on new physics: a detection of variations will be revolutionary, but even improved null results provide competitive constraints on a range of cosmological and particle physics paradigms.



Overview of theoretical prospects for understanding the values of fundamental constants

  • S. WeinbergJ. Taylor
  • Physics, Geology
    Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences
  • 1983
This talk deals with a list of the constants that appear in the laws of nature at the deepest level that the authors yet understand, constants whose value they cannot calculate with precision in terms of more fundamental constants, not just because the calculation is too complicated but because they do not know of anything more fundamental.

Varying-α theories and solutions to the cosmological problems

A Stringy Nature Needs Just Two Constants

Dual string theories of everything, being purely geometrical, contain only two fundamental constants: c, for relativistic invariance, and a length λ, for quantization. Planck's and Newton's constants

The Cosmological Constants

PROF. P. A. M. DIRAC'S recent letter in NATURE1 encourages me to direct attention to certain ‘coincidences’ which I had noticed some years ago, but which I have been hesitating to publish from the

Cube or hypercube of natural units

This short note is a little pebble on the tombstone of Michael Samuilovich Marinov.

The fundamental constants of physics

A natural system of fundamental physical units c, , and mP is discussed, where n is the velocity of light, is Planck's constant, and mP is the Planck mass, which is related to the Newtonian

Quantum Strings and the Constants of Nature

I shall start this talk with a quotation from Weinberg [1] which, I think, explains very well what he and I mean, in practice, by a “Fundamental Constant of Nature”. Weinberg says [1]:

Symbols units and nomenclature in physics

The recommendations in this document, composed by the Commission for Symbols, Units and Nomenclature (SUN Commission) of the International Union of Pure and Applied Physics (IUPAP), have been

Review of particle properties.

This biennial Review summarizes much of Particle Physics using data from previous editions, plus 2205 new measurements from 667 papers, and features expanded coverage of CP violation in B mesons and of neutrino oscillations.