Date: 27/06/2014 18:24:21
From: CrazyNeutrino
ID: 552067
Subject: Has the Cosmology Standard Model become a Rube Goldberg Device?

Has the Cosmology Standard Model become a Rube Goldberg Device?

This week at the Royal Astronomical Society’s National Astronomy Meeting in the UK, physicists are challenging the evidence for the recent BICEP2 results regarding the inflation period of the Universe, announced just 90 days ago. New research is laying doubt upon the inclusion of inflation theory in the Standard Cosmological Model for understanding the forces of nature, the nature of elementary particles and the present state of the known Universe.

Back on March 17, 2014, it seemed the World was offered a glimpse of an ultimate order from eons ago … actually from the beginning of time. BICEP2, the single purpose machine at the South Pole delivered an image that after analysis, and subtraction of estimated background signal from the Milky Way, lead its researchers to conclude that they had found the earliest remnant from the birth of the Universe, a signature in ancient light that supported the theory of Inflation.

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Date: 27/06/2014 22:31:50
From: mollwollfumble
ID: 552233
Subject: re: Has the Cosmology Standard Model become a Rube Goldberg Device?

I’m rather annoyed that we had to wait for BICEP2 (cosmic microwave background polarization) for a good analysis of cosmic inflation. The results from the Planck satellite should have laid this to rest months earlier.

There is not and never has been a good alternative to the theory of slow-roll cosmic inflation. It has been sitting on the edge of the standard model since we got the results back from COBE in about 1991.

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Date: 28/06/2014 09:12:18
From: The Rev Dodgson
ID: 552260
Subject: re: Has the Cosmology Standard Model become a Rube Goldberg Device?

mollwollfumble said:


I’m rather annoyed that we had to wait for BICEP2 (cosmic microwave background polarization) for a good analysis of cosmic inflation. The results from the Planck satellite should have laid this to rest months earlier.

There is not and never has been a good alternative to the theory of slow-roll cosmic inflation. It has been sitting on the edge of the standard model since we got the results back from COBE in about 1991.

What is slow-roll cosmic inflation?

Is it a Rube-Goldberg device?

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Date: 28/06/2014 09:20:19
From: The Rev Dodgson
ID: 552264
Subject: re: Has the Cosmology Standard Model become a Rube Goldberg Device?

What TATE says:

“Slow-roll inflation

The bubble collision problem was solved by Andrei Linde and independently by Andreas Albrecht and Paul Steinhardt in a model named new inflation or slow-roll inflation (Guth’s model then became known as old inflation). In this model, instead of tunneling out of a false vacuum state, inflation occurred by a scalar field rolling down a potential energy hill. When the field rolls very slowly compared to the expansion of the universe, inflation occurs. However, when the hill becomes steeper, inflation ends and reheating can occur.”

Anyone got a comprehensible link?

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Date: 28/06/2014 10:57:36
From: ChrispenEvan
ID: 552275
Subject: re: Has the Cosmology Standard Model become a Rube Goldberg Device?

i thought that the BICEP2 findings had been called into question? might be dust i heard.

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Date: 28/06/2014 11:00:12
From: The Rev Dodgson
ID: 552277
Subject: re: Has the Cosmology Standard Model become a Rube Goldberg Device?

ChrispenEvan said:


i thought that the BICEP2 findings had been called into question? might be dust i heard.

That’s what the article is saying.

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Date: 28/06/2014 11:02:48
From: ChrispenEvan
ID: 552279
Subject: re: Has the Cosmology Standard Model become a Rube Goldberg Device?

well, there you go. don’t often read the articles. unless the intro posted grabs me.

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