Cosmic Acceleration, Dark Energy, and Fundamental Physics(<SPECIAL TOPIC> Frontiers of Elementary Particle Physics, the Standard Model and Beyond)

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概要

• 論文の詳細を見る

• A web of interlocking observations has established that the expansion of the Universe is speeding up and not slowing, revealing the presence of some form of repulsive gravity. Within the context of general relativity the cause of cosmic acceleration is a highly elastic (p〜-ρ), very smooth form of energy called "dark energy" accounting for about 75% of the Universe. The "simplest" explanation for dark energy is the zero-point energy density associated with the quantum vacuum ; however, all estimates for its value are many orders-of-magnitude too large. Other ideas for dark energy include a very light scalar field or a tangled network of topological defects. An alternate explanation invokes gravitational physics beyond general relativity. Observations and experiments underway and more precise cosmological measurements and laboratory experiments planned for the next decade will test whether or not dark energy is the quantum energy of the vacuum or something more exotic, and whether or not general relativity can self consistently explain cosmic acceleration. Dark energy is the most conspicuous example of physics beyond the standard model and perhaps the most profound mystery in all of science.

• 社団法人日本物理学会の論文
• 2007-11-15

著者

• Turner Michael

  Kavli Institute For Cosmological Physics The University Of Chicago:department Of Astronomy And Astro

• HUTERER Dragan

  Kavli Institute for Cosmological Physics, The University of Chicago

• Huterer Dragan

  Kavli Institute For Cosmological Physics The University Of Chicago:department Of Astronomy And Astro

関連論文

• Cosmic Acceleration, Dark Energy, and Fundamental Physics( Frontiers of Elementary Particle Physics, the Standard Model and Beyond)

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