Recent content by Eytan Suchard

Hi, You can see my original paper. In IOPScience and a more advanced paper in arXiv. http://iopscience.iop.org/article/10.1088/1742-6596/845/1/012019 And a fix to (35) on page 22, and to appendix B, (B.1),(B.3),(B.7) in https://arxiv.org/abs/1806.05244 Thank you, Eytan.

Hi, 1) It definitely depends on either you are a Lagrangian or an Eulerian observer. Suppose you are a Lagrangian observer who freely falls through the gravitational field in an elevator whose cable was cut off by some malicious entity. Suppose you have a photon that bounces between two...

The following combination acts as a source and as a sink for, say, tiny material reference clocks that are scattered in the space-time of the spaceship which is illustrated by the image. Each wall is two hollowed balls of positive and negative energy. In the middle of the internal balls the...

Will that work despite the fact that (12) in Alcubierre's paper https://arxiv.org/pdf/gr-qc/0009013.pdf is not fulfilled ? My intuition tells me yes and that the motion will be towards the left.

Hi, the trace of the extrinsic tensor K(Myu,Nu) in Alcubierre metric, relative to the foliation normal vector is non zero on the rear x=rs+R (because it starts at negative rs) and front x=rs-R "walls". This is the normal volume component Tr =k(0,0)+k(1,1)+k(2,2)+k(3,3) and should affect the...

Actually it is Tr = k(0,0)+k(1,1)+k(2,2)+k(4,4). Also (Tanh(x+R)-Tanh(x-R))/Tanh(Sig R) gets a weak maximum at x = 0. The simple model of anti-energy at the rear wall and energy at the front, does not yield this function and does not yield 0 g at the center of the spaceship. The pilot will be...

Hi, the trace of the extrinsic tensor K(Myu,Nu) in Alcubierre metric, relative to the foliation normal vector is non zero on the front x=rs+R and rear x=rs-R "walls". This is the normal volume component Tr =k(1,1)+k(2,2)+k(3,3) and should affect the Ricci tensor in Lorentzian/Minkowsky 4D. How...