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ЖУРНАЛЫ // Symmetry, Integrability and Geometry: Methods and Applications // Архив

SIGMA, 2012, том 8, 026, 15 стр. (Mi sigma703)

Эта публикация цитируется в 35 статьях

Loop quantum gravity vacuum with nondegenerate geometry

Tim Koslowskia, Hanno Sahlmannb

a Perimeter Institute for Theoretical Physics, Waterloo, Canada
b APCTP, and Physics Department of POSTECH University, Pohang, Korea

Аннотация: In loop quantum gravity, states of the gravitational field turn out to be excitations over a vacuum state that is sharply peaked on a degenerate spatial geometry. While this vacuum is singled out as fundamental due to its invariance properties, it is also important to consider states that describe non-degenerate geometries. Such states have features of Bose condensate ground states. We discuss their construction for the Lie algebra as well as the Weyl algebra setting, and point out possible applications in effective field theory, Loop Quantum Cosmology, as well as further generalizations.

Ключевые слова: loop quantum gravity, representations, geometric condensate.

MSC: 83C45, 81R15, 46L30, 28C20

Поступила: 23 сентября 2011 г.; в окончательном варианте 3 мая 2012 г.; опубликована 12 мая 2012 г.

Язык публикации: английский

DOI: 10.3842/SIGMA.2012.026



Реферативные базы данных:
ArXiv: 1109.4688


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