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Braneworlds and deconstruction.

Harvard University.

Braneworlds and deconstruction.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Braneworlds and deconstruction.
作者:	Thambyahpillai, Shiyamala Nayagi.
面頁冊數:	67 p.
附註:	Adviser: Lisa Randall.
附註:	Source: Dissertation Abstracts International, Volume: 67-05, Section: B, page: 2627.
Contained By:	Dissertation Abstracts International67-05B.
標題:	Physics, Elementary Particles and High Energy.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3217900
ISBN:	9780542694165

Braneworlds and deconstruction.
Thambyahpillai, Shiyamala Nayagi.

Braneworlds and deconstruction. - 67 p.

Adviser: Lisa Randall.

Thesis (Ph.D.)--Harvard University, 2006.

We also investigate the discretized version of the compact Randall-Sundrum model. By studying the mass eigenstates of the lattice theory, we demonstrate that for warped space, unlike for flat space, the strong coupling scale does not depend on the IR scale and lattice size. However, strong coupling does prevent us from taking the continuum limit of the lattice theory. Nonetheless, the lattice theory works in the manifestly holographic regime and successfully reproduces the most significant features of the warped theory. It is even in some respects better than the KK theory, which must be carefully regulated to obtain the correct physical results. Because it is easier to construct lattice theories than to find exact solutions to GR, we expect lattice gravity to be a useful tool for exploring field theory in curved space.

ISBN: 9780542694165Subjects--Topical Terms:

227490
Physics, Elementary Particles and High Energy.

Braneworlds and deconstruction.
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520 # $a We also investigate the discretized version of the compact Randall-Sundrum model. By studying the mass eigenstates of the lattice theory, we demonstrate that for warped space, unlike for flat space, the strong coupling scale does not depend on the IR scale and lattice size. However, strong coupling does prevent us from taking the continuum limit of the lattice theory. Nonetheless, the lattice theory works in the manifestly holographic regime and successfully reproduces the most significant features of the warped theory. It is even in some respects better than the KK theory, which must be carefully regulated to obtain the correct physical results. Because it is easier to construct lattice theories than to find exact solutions to GR, we expect lattice gravity to be a useful tool for exploring field theory in curved space.
520 # $a We investigate a scenario with two AdS 4 branes in an AdS5 bulk. In this scenario there are two gravitons and we investigate the role played by each of them for different positions of the second brane. We show that both gravitons play a significant role only when the turnaround point in the warp factor is approximately equidistant from both branes. We find that the ultralight mode becomes heavy as the second brane approaches the turn-around point, and the physics begins to resemble that of the RS model. Thus we demonstrate the crucial role played by the turn-around in the warp factor in enabling the presence of both gravitons.
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