Reconstructing the History of Energy Condition Violation from Observational Data

Abstract

We study the likelihood of energy condition violations in the history of the Universe. Our method is based on a set of functions that characterize energy condition violation. FLRW cosmological models are built around these "indication functions". By computing the Fisher matrix of model parameters using type Ia supernova and Hubble parameter data, we extract the principal modes of these functions' redshift evolution. These modes allow us to obtain general reconstructions of energy condition violation history independent of the dark energy model. We find that the data suggest a history of strong energy condition violation, but the null and dominant energy conditions are likely to be fulfilled. Implications for dark energy models are discussed.

v1: 6 pages, 7 figures, 1 table. Comments welcome; v2: 7 pages, expanded & corrected, accepted by ApJ

References in corpus (9)

• Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
• Dark Energy
• Energy conditions in the epoch of galaxy formation
• Power of Observational Hubble Parameter Data: a Figure of Merit Exploration
• The null energy condition and instability
• Natural Phantom Dark Energy, Wiggling Hubble Parameter $H(z)$ and Direct $H(z)$ Data
• Energy conditions bounds and their confrontation with supernovae data
• Cosmodynamics: Energy conditions, Hubble bounds, density bounds, time and distance bounds
• Energy conditions bounds and supernovae data

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