What Are the Margins of Error in Calculating the Cosmologic Constant?

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In summary, the conversation discusses a 50-page paper on the cosmological constant (CC) problem. The paper provides a historical overview and examines various factors that contribute to CC calculation, such as red shift, CMBR, and quasars. It also suggests that there may be a margin for error in CC calculations. The conversation ends with a question about the best fit for CC and the associated margins of error. The paper is considered very comprehensive, and the only new concept mentioned is the Boltzmann hierarchy. The speaker expresses their enjoyment of historical explanations and encourages the posting of interesting papers on the topic.
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wolram
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http://arxiv.org/pdf/astro-ph/0203330
This paper is 50 pages, and gives a good historical overview for the
CC problem, It also looks into the contributing aspects for CC calculation,
red shift, CMBR , quasars etc.
It also shows that a margin for error is possible in most if not all attempts to
calculate the CC.
If everything in this paper is taken into consideration along with other
publications, What is the best fit for a CC and what are the margins
of error?
 
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The paper is very complete, with historical explanations, that I always enjoy, but more or less I am familiar with the concepts explained; perhaps the only thing that I hahdn't heard about before is the concept of Boltzmann hierarchy
Keep posting interesting papers, wolram
 

FAQ: What Are the Margins of Error in Calculating the Cosmologic Constant?

What is the cosmologic constant problem?

The cosmologic constant problem refers to the discrepancy between the predicted value of the cosmological constant (or dark energy) in the universe and the observed value. This discrepancy has been a major challenge in the field of cosmology for decades.

What is the significance of the cosmologic constant?

The cosmological constant is a term in Einstein's field equations that describes the energy density of empty space. It has a significant impact on the expansion rate of the universe and plays a crucial role in our understanding of the universe's evolution.

Why is the cosmologic constant problem difficult to solve?

The cosmological constant problem is difficult to solve because it requires reconciling two very different values of the cosmological constant. The predicted value based on quantum field theory is much larger than the observed value from cosmological observations. This is known as the "cosmological constant fine-tuning problem."

What are some proposed solutions to the cosmologic constant problem?

There have been various proposed solutions to the cosmological constant problem, including modifying the theory of gravity, introducing new particles or fields, and considering the possibility of a multiverse. However, none of these solutions have been able to fully resolve the discrepancy.

What implications does the cosmologic constant problem have for our understanding of the universe?

The cosmological constant problem challenges our current understanding of the universe and highlights the limitations of our current theories. It also raises questions about the nature of dark energy and its role in the expansion of the universe. Solving this problem could lead to a deeper understanding of the fundamental laws of physics.

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