Absorbing the arrow of electromagnetic radiation

Area of Science:

• Physics
• Cosmology
• Electromagnetism

Background:

• The asymmetry between diverging and converging electromagnetic waves presents a puzzle in physics.
• This 'arrow of radiation' is one of several temporal asymmetries observed in nature.

Purpose of the Study:

• To explain the arrow of electromagnetic radiation within a broader framework of temporal asymmetries.
• To propose a unified explanation based on early universe conditions and statistical postulates.

Main Methods:

• Introducing a hypothesis and statistical postulate for early universe states.
• Comparing the proposed strategy with three alternative explanations for radiation asymmetry.
• Analyzing the asymmetry between diverging and converging waves and radiation reaction.

Main Results:

• The proposed strategy integrates the arrow of radiation into a wider account of temporal asymmetries.
• Early universe probabilities for matter and field states provide a unified explanation.
• The study evaluates modifications to electromagnetism and alternative interaction models.

Conclusions:

• The arrow of radiation is not an isolated phenomenon but part of a larger pattern of temporal asymmetry.
• A unified explanation rooted in early universe conditions offers a parsimonious account of observed asymmetries.
• The proposed framework provides a novel perspective on fundamental physics and cosmology.