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DOE OSTI · 1872756

Artificial dynamical effects in quantum field theory

Brodsky, Stanley J.·Deur, Alexandre·Roberts, Craig D.
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Abstract

In Newtonian mechanics, studying a system in a non-Galilean reference frame can lead to inertial pseudoforces appearing, such as the centrifugal force that seems to arise in dynamics analysed in a rotating frame. Likewise, artificial effects may arise in relativistic quantum field theory (QFT) if a system is studied in a framework that violates Poincaré invariance. Here, we highlight how such issues complicate the traditional canonical quantization of QFTs and can lead to a subjective description of natural phenomena. By contrast, the treatment of the same problem using light-front quantization is free from spurious pseudoeffects because Poincaré invariance is effectively preserved for all practical intents and purposes. We illustrate these statements using several examples: the Gerasimov-Drell-Hearn (GDH) relation, a fundamental feature of QFT; the absence of any measurable impact of Lorentz contraction in high-energy collisions; and the fictitious character of vacuum fluctuation contributions to the cosmological constant.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

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BibTeXRIS

Brodsky, Stanley J., Deur, Alexandre, Roberts, Craig D.. 2022-05-09. Artificial dynamical effects in quantum field theory. https://doi.org/10.1038/s42254-022-00453-3

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