Der Energieinhalt des elektrischen Teilchens nach den Einsteinschen modifizierten Feldgleichungen

Sen, N. R.

doi:10.1007/bf01451861

Cited by 4 publications

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“…First , the attempts of all of us were directed to arrive, along the path taken by Weyl and Eddington or a similar one, at a theory melting into a formal unity the gravitational and electromagnetic fields; but by lasting failure I now have laboured to convince myself that truth cannot be approached along this path .“ (Einstein’s italics; [80], p. 100) The new field equation was picked up by R. N. Sen of Kalkutta who calculated “the energy of an electric particle” according to it [323]. …”

Section: The Pursuit Of Unified Field Theory By Einstein and His Collmentioning

confidence: 99%

On the History of Unified Field Theories

Goenner

2004

Living Rev. Relativ.

236

241

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This article is intended to give a review of the history of the classical aspects of unified field theories in the 20th century. It includes brief technical descriptions of the theories suggested, short biographical notes concerning the scientists involved, and an extensive bibliography. The present first installment covers the time span between 1914 and 1933, i.e., when Einstein was living and working in Berlin — with occasional digressions into other periods. Thus, the main theme is the unification of the electromagnetic and gravitational fields augmented by short-lived attempts to include the matter field described by Schrödinger’s or Dirac’s equations. While my focus lies on the conceptual development of the field, by also paying attention to the interaction of various schools of mathematicians with the research done by physicists, some prosopocraphical remarks are included.

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Section: The Pursuit Of Unified Field Theory By Einstein and His Collmentioning

confidence: 99%

On the History of Unified Field Theories

Goenner

2004

Living Rev. Relativ.

236

241

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General Relativity and Astrophysics

Narlikar

2014

Astronomy in India: A Historical Perspective

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General-Relativistic Interior Metric for a Stable Static Charged Matter Fluid with Largeem

Bailyn

Eimerl

1972

Phys. Rev. D

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The general-relativistic field equations a r e solved for a spherically symmetric static charged matter fluid in isotropic coordinates, and matched at the boundary R to the external Reissner-Nordstriim metric. No pressure, i.e., s t r e s s of undefined origin, is involved. There turns out to be one more unknown than equation, but consistency and continuity conditions severely restrict the solutions. It is found that the charged fluid can be in equilibrium even with a large e / m , .such a s for an electron considered a s a fluid, but only if (1) there i s a singularity in gd4 at r =0, (2) the matter density p, in the energy-momentum tensor i s negative, and (3) the ratio p,/p, of charge to matter density i s a variable function. The energy density (as opposed to the matter density) can be made everywhere positive in the coordinates used. A simple picture of how the forces balance can be made.

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Der Energieinhalt des elektrischen Teilchens nach den Einsteinschen modifizierten Feldgleichungen

Cited by 4 publications

References 0 publications

On the History of Unified Field Theories

On the History of Unified Field Theories

General Relativity and Astrophysics

General-Relativistic Interior Metric for a Stable Static Charged Matter Fluid with Largeem

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