Corpus ID: 235652255

Chameleon Early Dark Energy and the Hubble Tension

  title={Chameleon Early Dark Energy and the Hubble Tension},
  author={Tanvi Karwal and M. Raveri and B. Jain and Justin Khoury and Mark Trodden},
Early dark energy (EDE) offers a particularly interesting theoretical approach to the Hubble tension, albeit one that introduces its own set of challenges, including a new ‘why then’ problem related to the EDE injection time at matter-radiation equality, and a mild worsening of the largescale structure (LSS) tension. Both these challenges center on the properties of dark matter, which becomes the dominant component of the Universe at EDE injection and is also responsible for seeding LSS… Expand

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