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Correlations in Quantum Gravity and ...

Baytas, Bekir.

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Correlations in Quantum Gravity and Cosmology.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Correlations in Quantum Gravity and Cosmology./
作者:	Baytas, Bekir.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	216 p.
附註:	Source: Dissertation Abstracts International, Volume: 80-04(E), Section: B.
Contained By:	Dissertation Abstracts International80-04B(E).
標題:	Physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13803925
ISBN:	9780438716278

Correlations in Quantum Gravity and Cosmology.
Baytas, Bekir.

Correlations in Quantum Gravity and Cosmology. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 216 p.

Source: Dissertation Abstracts International, Volume: 80-04(E), Section: B.

Thesis (Ph.D.)--The Pennsylvania State University, 2018.

We study what kind of implications and inferences one can deduce by studying correlations which are realized in various physical systems. In particular, this thesis focuses on specific correlations in systems that are considered in quantum gravity (loop quantum gravity) and cosmology.

ISBN: 9780438716278Subjects--Topical Terms:

516296
Physics.

Correlations in Quantum Gravity and Cosmology.
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500 $a Source: Dissertation Abstracts International, Volume: 80-04(E), Section: B.
500 $a Adviser: Sarah Shandera.
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520 $a We study what kind of implications and inferences one can deduce by studying correlations which are realized in various physical systems. In particular, this thesis focuses on specific correlations in systems that are considered in quantum gravity (loop quantum gravity) and cosmology.
520 $a In loop quantum gravity, a spin-network basis state, nodes of the graph describe un-entangled quantum regions of space, quantum polyhedra. We introduce Bell-network states and study correlations of quantum polyhedra in a dipole, a pentagram and a generic graph. We find that vector geometries, structures with neighboring polyhedra having adjacent faces glued back-to-back, arise from Bell-network states. The results present show clearly the role that entanglement plays in the gluing of neighboring quantum regions of space.
520 $a We introduce a discrete quantum spin system in which canonical effective methods for background independent theories of quantum gravity can be tested with promising results. In particular, features of interacting dynamics are analyzed with an emphasis on homogeneous configurations and the dynamical building-up and stability of long-range correlations. We conclude that an analysis of the building-up of long-range correlations in discrete systems requires non-perturbative solutions of the dynamical equations.
520 $a For the early universe cosmology part of the thesis, we present examples of non-Gaussian statistics that can induce bispectra matching local and non-local (including equilateral) templates in biased sub-volumes. We find cases where the biasing from coupling to long wavelength modes affects only the power spectrum, only the bispectrum or both.
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