The Cosmological constant problem

Ng, Y.Jack

doi:10.1142/S0218271892000069

The Cosmological constant problem

Y.Jack Ng
(
- North Carolina U.
)

Sep, 1991

23 pages

Published in:

Int.J.Mod.Phys.D 1 (1992) 145-160

DOI:

10.1142/S0218271892000069

Report number:

IFP-412-UNC

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Abstract: (WSP)

The cosmological constant is a macroscopic parameter which controls the large-scale structure of the Universe. All observations to date have shown that it is very small. However, our modern microscopic theory of particle physics and gravity suggests that the cosmological constant should be very large. This discrepancy between theoretical expectation and empirical observation constitutes the cosmological constant problem. After a review of the problem, some approaches to its solution are briefly discussed, and then a possible solution is proposed. In this approach, the cosmological constant appears as a constant of integration, unrelated to any parameters in the Lagrangian. The solution makes crucial use of quantum mechanics.

cosmological constant
general relativity
vacuum state: energy state
quantum mechanics
quantum gravity
wormhole
supersymmetry
duality
gravitation: model

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