Results 21 to 30 of about 239,856 (283)

Evolution of Fluctuations during Graceful Exit in String Cosmology [PDF]

open access: yes, 1999
We study the evolution of fluctuations in a universe dominated by a scalar field coupled to the Gauss-Bonnet term. During the graceful exit, we found non-negligible enhancements of both curvature perturbation and gravitational wave in the long wavelength
Allen   +11 more
core   +2 more sources

Local drags of the completion string with packers in horizontal wells

open access: yesEnergy Exploration & Exploitation, 2021
The multistage stimulation technique and horizontal wells are increasingly being utilized to improve oil and gas recovery. However, the sticking that occurs due to large drag during the completion string with packers tripping into the horizontal section,
Qimin Liang   +3 more
doaj   +1 more source

Strings-and-Coins and Nimstring are PSPACE-complete

open access: yes, 2022
10 pages, 7 figures.
Demaine, Erik D., Diomidov, Yevhenii
openaire   +3 more sources

Mass corrections in string theory and lattice field theory [PDF]

open access: yes, 2009
Kaluza-Klein compactifications of higher dimensional Yang-Mills theories contain a number of four dimensional scalars corresponding to the internal components of the gauge field.
D. B. Kaplan   +7 more
core   +2 more sources

Perspective on completing natural inflation

open access: yesFrontiers in Physics, 2015
We present a perspective on the inflation paths in $2-, 3-, cdots, N-$flation models based on the ultraviolet completion in heterotic string theory, where a number of grand unification scale axions are used.
Ki-Young eChoi   +3 more
doaj   +1 more source

Effects of D-instantons [PDF]

open access: yes, 1997
Scattering of fundamental states of type IIB supergravity and superstring theory is discussed at low orders in perturbation theory in the background of a D-instanton.
't Hooft   +29 more
core   +2 more sources

Kite String Injury Causing a Complete Tear of the Tendoachilles [PDF]

open access: yesCureus, 2020
Kite flying is a common activity in many countries, particularly India. Fierce competition has led to the use of dangerous kite threads like manja (which is a cotton or nylon thread coated with powdered glass) to gain an edge over rivals. The sharp manja can not only cause linear abrasions or deep incised wounds among flyers but it can inflict equally ...
Bhatia, Nishant   +4 more
openaire   +2 more sources

On R**2 Corrections for 5D Black Holes [PDF]

open access: yes, 2007
We study higher order corrections to extremal black holes/black string in five dimensions. These higher order corrections are due to supersymmetric completion of R**2 term in five dimensions.
A. Castro   +30 more
core   +6 more sources

Analytic Study for the String Theory Landscapes via Matrix Models

open access: yes, 2012
We demonstrate a first-principle analysis of the string theory landscapes in the framework of non-critical string/matrix models. In particular, we discuss non-perturbative instability, decay rate and the true vacuum of perturbative string theories.
A. Sato   +11 more
core   +1 more source

On Low Rank Classical Groups in String Theory, Gauge Theory and Matrix Models [PDF]

open access: yes, 2003
We consider N=1 supersymmetric U(N), SO(N), and Sp(N) gauge theories, with two-index tensor matter and added tree-level superpotential, for general breaking patterns of the gauge group.
Abbaspur   +61 more
core   +1 more source

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