An acoustic-type metric with a spatially varying velocity field yields an imperfect fluid with zero isotropic density, nonzero anisotropic pressure, and a Yukawa-like potential that leads to rapidly damped geodesics.
Gravitational reduction of the wave function based on Bohmian quantum potential
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abstract
In objective gravitational reduction of the wave function of a quantum system, the classical limit of the system is obtained in terms of the objective properties of the system. On the other hand, in Bohmian quantum mechanics the usual criterion for getting classical limit is the vanishing of the quantum potential or the quantum force of the system, which suffers from the lack of an objective description. In this regard, we investigated the usual criterion of getting the classical limit of a free particle in Bohmian quantum mechanics. Then we argued that how it is possible to have an objective gravitational classical limit related to the Bohmian mechanical concepts like quantum potential or quantum force. Also we derived a differential equation related to the wave function reduction. An interesting connection will be made between Bohmian concepts and gravitational concepts.
fields
gr-qc 1years
2019 1verdicts
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Accelerating imperfect fluid
An acoustic-type metric with a spatially varying velocity field yields an imperfect fluid with zero isotropic density, nonzero anisotropic pressure, and a Yukawa-like potential that leads to rapidly damped geodesics.