Dirac's Large Number Research Articles

F-gravity and Dirac's large numbers hypothesis

The identification of the strong f-gravity metric with Dirac's atomic metric and the large value of its coupling constant, i.e. G f ∼ 10 39 G N ( G N being Newtonian constant) provides the physical basis for the large numbers hypothesis.

Crystal structures, the Earth and Dirac's Large Numbers Hypothesis

DIRAC'S Large Numbers Hypothesis assumes that the large, dimensionless numbers obtained from the ratios between fundamental physical constants are related to the age, t, of the Universe1–4. The theory demands two important consequences: that matter be continuously created with time and that the gravitational constant, G, vary with time. To reconcile those demands with Einstein's theory of gravitation two metrics are required. One, the Einstein metric, involves the equations of motion and classical mechanics; the other, the atomic metric, refers to quantum mechanics and laboratory measurements of distances and time as determined by atoms. According to Dirac, the continuous creation of mass requires either of two models—one, called additive creation, assumes that matter is created uniformly throughout space (mostly intergalactic space). The other model is called multiplicative creation. It calls for the creation of matter where matter already exists in proportion to the amount and kind already existing.

Solar test of Dirac's large numbers hypothesis

DIRAC1,2 has proposed that the large dimensionless numbers that are constructable from the fundamental constants of physics and astronomy are related to each other, and are simple functions of our present epoch in the Universe. Thus he suggests that, as measured by atomic standards, the gravitational constant, G, varies with the time as t−1 and the number of nucleons in the Universe increases as t2. In more recent work3,4, he has pursued the consequences of assuming different modes of creation of new matter. We have found that Dirac's theory of multiplicative creation, but not his theory of additive creation, is not in contradiction with known facts about the Sun.