Dilution of zero point energies in the cosmological expansion

Abstract

The vacuum fluctuations of all quantum fields filling the universe are supposed to leave enormous energy and pressure contributions which are incompatible with observations. It has been recently suggested that, when the effective nature of quantum field theories is properly taken into account, vacuum fluctuations behave as a relativistic gas rather than as a cosmological constant. Accordingly, zero-point energies are tremendously diluted by the universe expansion but provide an extra contribution to radiation energy. Ongoing and future cosmological observations could offer the opportunity to scrutinize this scenario. The presence of such additional contribution to radiation energy can be tested by using primordial nucleosynthesis bounds or measured on Cosmic Background Radiation anisotropy.

8 pages, no figures. Submitted the 17th of March to Modern Physics Letters A

References in corpus (8)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
• Primordial Nucleosynthesis: from precision cosmology to fundamental physics
• On the possible running of the cosmological "constant"
• Casimir Effect confronts Cosmological Constant
• Measurability of vacuum fluctuations and dark energy
• On the Running of the Cosmological Constant in Quantum General Relativity
• Josephson junctions and dark energy
• Mapping Fermion and Boson systems onto the Fock space of harmonic oscillators

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• Comparisons of Predictions from Exact Amplitude-Based Resummation Methods with LHC and Cosmological Data
• Exact Amplitude-Based Resummation in Quantum Field Theory: Recent Results