Macroscopical matter derived from Quantum Field Theory
G. Domenech, M. L. Levinas
TL;DR
This paper develops a WKB expansion to connect quantum field theory variables with macroscopic matter descriptions, revealing that quantum corrections lead to deviations from classical fluid behavior and particle trajectories.
Contribution
It introduces a method to relate quantum field variables to macroscopic matter, including quantum corrections to classical fluid and particle motion.
Findings
Quantum corrections modify perfect fluid behavior.
Particles deviate from classical straight-line trajectories.
Free scalar fields correspond to perfect fluids with pressure.
Abstract
We develop the WKB expansion to relate Quantum Field Theory variables with those describing macroscopical matter. We find that, up to the first quantum correction, free scalar fields correspond to perfect fluids with pressure. We also find the law of motion for the associated particles which takes into account deviations from the classical trajectories, showing that they do not follow unaccelerated straight line trajectories. Keywords: Quantum Field Theory, Fluid dynamics. PACS number (s): 11.10.-z, 03.40.Gc
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