Results 101 to 110 of about 13,985 (193)
Generalized Bertrand curves with timelike (1,3)-normal plane in Minkowski space-time
Kuwait Journal of Science, 2015 In this paper, we reconsider the (1,3)-Bertrand curves with respect to the casualcharacters of (1,3)-normal plane which is a plane spanned by the principal normal andthe second binormal vector fields of the given curve.
ALİ UCUM +2 more
doaj
Generation of closed timelike curves with rotating superconductors [PDF]
Classical and Quantum Gravity, 2007 9 pages.
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Negative Branes, Supergroups and the Signature of Spacetime
, 2016 We study the realization of supergroup gauge theories using negative branes in string theory. We show that negative branes are intimately connected with the possibility of timelike compactification and exotic spacetime signatures previously studied by ...
Dijkgraaf, Robbert +3 more
core
CLOSED TIMELIKE CURVES IN CLASSICAL RELATIVITY [PDF]
International Journal of Modern Physics D, 2003 Spacetimes of general relativity containing closed timelike curves (CTC) are usually dismissed as non-physical. However, it is now known that CTC may appear in spacetimes modelling simple laboratory experiments, and two such experiments are described in this essay. We therefore need a realistic interpretation of CTC. I suggest that a region containing
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Killing spectroscopy of closed timelike curves
Journal of High Energy Physics, 2004 1+35 pages, no figures; v2, new references added.
Maoz, L., Simon, J.
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Closed timelike curves in 𝒫𝒯-symmetric wormholes
International Journal of Modern Physics DIn this paper, we investigate a modified Einstein–Rosen wormhole model, made unidirectionally traversable through a bimetric geometry defined by two regular metrics, [Formula: see text] and [Formula: see text] and characterized by [Formula: see text] symmetry combining time reversal ([Formula: see text]) and spatial inversion ([Formula: see text]). In
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Timelike surfaces with Bertrand geodesic curves in Minkowski 3–space
AIP AdvancesGeodesic curves on a surface play an essential role in reasonable implementation. A curve on a surface is a geodesic curve if its principal normal vector is aligned with the surface normal. Using the Serret–Frenet frame, the timelike (TL) surfaces can be
A. A. Almoneef, R. A. Abdel-Baky
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Entropic interpretation of Einstein equation in dS/CFT
Journal of High Energy PhysicsIn this paper, we demonstrate that the first law of holographic pseudo-entropy, which is a non-Hermitian generalization of entanglement entropy in a two-dimensional conformal field theory (CFT), is equivalent to the perturbative Einstein equation in ...
Kosei Fujiki +4 more
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Computability Theory of Closed Timelike Curves
, 2016 We ask, and answer, the question of what's computable by Turing machines equipped with time travel into the past: that is, closed timelike curves or CTCs (with no bound on their size). We focus on a model for CTCs due to Deutsch, which imposes a probabilistic consistency condition to avoid grandfather paradoxes.
Aaronson, Scott +2 more
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