Timelike

comprise the timelike future of the event O. Likewise, the timelike past comprises the interior events of the past light cone. So in timelike intervals Δct...

In mathematical physics, a closed timelike curve (CTC) is a world line in a Lorentzian manifold, of a material particle in spacetime, that is "closed"...

Timelike Infinity is a 1992 science fiction book by British author Stephen Baxter. The second book in the Xeelee Sequence, Timelike Infinity introduces...

is chosen, timelike and null vectors can be further decomposed into various classes. For timelike vectors, one has future-directed timelike vectors whose...

distinguished as timelike. A timelike homotopy between two timelike curves is a homotopy such that each intermediate curve is timelike. No closed timelike curve...

Congruences generated by nowhere vanishing timelike, null, or spacelike vector fields are called timelike, null, or spacelike respectively. A congruence...

travel that contain closed timelike curves that lead back to the same point in spacetime, physics in or near closed timelike curves (time machines) can...

as timelike (representing something that only goes forwards, not backwards, in time, in every local frame). A timelike homotopy between two timelike curves...

classified into three disjoint types. A tangent vector X {\displaystyle X} is: timelike if g ( X , X ) < 0 {\displaystyle \,g(X,X)<0} null or lightlike if g (...

principle. Consider the case of trying to find a geodesic between two timelike-separated events. Let the action be S = ∫ d s {\displaystyle S=\int ds}...

{e}}_{0}}{\vec {e}}_{0}=0} , but the vorticity vector of the timelike geodesic congruence defined by the timelike unit vectors is − ω e → 2 {\displaystyle -\omega...

spacetime point) can be distinguished is whether it is spacelike, lightlike or timelike. The space of special relativity (Minkowski space) is an example. A constant...

relativity contain closed timelike curves—for example the Gödel metric. Novikov discussed the possibility of closed timelike curves (CTCs) in books he...

the universe and Timelike Infinity's singularity of the future. An omnibus edition of the first four Xeelee novels (Raft, Timelike Infinity, Flux, and...

discontinuities) in spacetimes with closed timelike curves. However, later it was shown that such a model of closed timelike curves can have internal inconsistencies...

signs of the eigenvalues of the metric in the order that presents the timelike component first, followed by the spacelike components). A similar convention...

: 499  In technical papers, physicists discuss the possibility of closed timelike curves, which are world lines that form closed loops in spacetime, allowing...

destroy this possibility. It also appears to be possible to follow closed timelike curves (returning to one's own past) around the Kerr singularity, which...

of time travel is represented mathematically by the existence of closed timelike curves in some solutions to the field equations of general relativity....

coordinate with U0 = c. A four-velocity is thus the normalized future-directed timelike tangent vector to a world line, and is a contravariant vector. Though it...