Splitting the Source Term for the Einstein Equation to Classical and Quantum Parts

Biró, Tamás Sándor and Ván, Péter (2015) Splitting the Source Term for the Einstein Equation to Classical and Quantum Parts. FOUNDATIONS OF PHYSICS, 45 (11). pp. 1465-1482. ISSN 0015-9018

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Abstract

We consider the special and general relativistic extensions of the action principle behind the Schrödinger equation distinguishing classical and quantum contributions. Postulating a particular quantum correction to the source term in the classical Einstein equation we identify the conformal content of the above action and obtain classical gravitation for massive particles, but with a cosmological term representing off-mass-shell contribution to the energy-momentum tensor. In this scenario the - on the Planck scale surprisingly small - cosmological constant stems from quantum bound states (gravonium) having a Bohr radius a as being Λ = 3/a2.

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