130 research outputs found
Probing Fractionalized Charges
Inspired by holographic entanglement entropy, for geometries with non-zero
abelian charges, we define a quantity which is sensitive to the background
charges. One observes that there is a critical charge below that the system is
mainly described by the metric and the effects of the background charges are
just via metric's components. While for charges above the critical one the
background gauge field plays an essential role. This, in turn, might be used to
define an order parameter to probe phases of a system with fractionalized
charges.Comment: Latex file, 17 pages, 7 figures, Published versio
Branes at Singularities in Type 0 String Theory
We consider Type 0B D3-branes placed at conical singularities and analyze in
detail the conifold singularity. We study the non supersymmetric gauge theories
on their worldvolume and their conjectured dual gravity descriptions. In the
ultraviolet the solutions exhibit a logarithmic running of the gauge coupling.
In the infrared we find confining solutions and IR fixed points.Comment: 18 pages, uses BibTeX, ssg.bs
On Complexity of Jackiw-Teitelboim Gravity
Using "complexity=action" proposal we compute complexity for
Jackiw-Teitelboim gravity assuming that a UV cutoff enforces us to have a cut
off behind the horizon. We find that the resultant complexity exhibits the late
time linear growth. It is also consistent with the case where the corresponding
Jackiw-Teitelboim gravity is obtained by dimensional reduction from higher
dimensional gravities. To this work certain counter term on the cut off surface
behind horizon is needed.Comment: 11 pages, one figure. V2: typos corrected, refs adde
On Born-Infeld Gravity in Three Dimensions
In this paper we explore different aspects of three dimensional Born-Infeld
as well as Born-Infeld-Chern-Simons gravity. We show that the models have AdS
and AdS-wave vacuum solutions. Moreover we observe that although
Born-Infeld-Chern-Simons gravity admits a logarithmic solution, Born-Infeld
gravity does not, though it has a limiting logarithmic solution as we approach
the critical point.Comment: 12 page
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