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Loop quantum cosmology and the fine structure constant

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Loop quantum cosmology and the fine structure constant. / Sloan, David.

In: Classical and Quantum Gravity, Vol. 31, No. 2, 025014, 2013.

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Sloan, David. / Loop quantum cosmology and the fine structure constant. In: Classical and Quantum Gravity. 2013 ; Vol. 31, No. 2.

Bibtex

@article{49750bd8ad164121ac65d650fc770f9b,
title = "Loop quantum cosmology and the fine structure constant",
abstract = "The cosmological implications of introducing a variation to the fine structure {\textquoteleft}constant{\textquoteright}, α are examined within the context of loop quantum cosmology. The evolution of α is described using the model introduced by Bekenstein, Sandvik, Barrow and Magueijo, in which a ghost scalar field produces the variation. The dynamics of the system are examined in flat and closed cosmological settings. Matter consisting of the scalar field and radiation are examined with a thermodynamically motivated coupling between the two, which can lead to a series of bounces induced by both the negative density effects of the ghost field and the loop effects.",
author = "David Sloan",
year = "2013",
doi = "10.1088/0264-9381/31/2/025014",
language = "English",
volume = "31",
journal = "Classical and Quantum Gravity",
issn = "0264-9381",
publisher = "IOP Publishing",
number = "2",

}

RIS

TY - JOUR

T1 - Loop quantum cosmology and the fine structure constant

AU - Sloan, David

PY - 2013

Y1 - 2013

N2 - The cosmological implications of introducing a variation to the fine structure ‘constant’, α are examined within the context of loop quantum cosmology. The evolution of α is described using the model introduced by Bekenstein, Sandvik, Barrow and Magueijo, in which a ghost scalar field produces the variation. The dynamics of the system are examined in flat and closed cosmological settings. Matter consisting of the scalar field and radiation are examined with a thermodynamically motivated coupling between the two, which can lead to a series of bounces induced by both the negative density effects of the ghost field and the loop effects.

AB - The cosmological implications of introducing a variation to the fine structure ‘constant’, α are examined within the context of loop quantum cosmology. The evolution of α is described using the model introduced by Bekenstein, Sandvik, Barrow and Magueijo, in which a ghost scalar field produces the variation. The dynamics of the system are examined in flat and closed cosmological settings. Matter consisting of the scalar field and radiation are examined with a thermodynamically motivated coupling between the two, which can lead to a series of bounces induced by both the negative density effects of the ghost field and the loop effects.

U2 - 10.1088/0264-9381/31/2/025014

DO - 10.1088/0264-9381/31/2/025014

M3 - Journal article

VL - 31

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

SN - 0264-9381

IS - 2

M1 - 025014

ER -