The Judgement Call Podcast

 Hello All,

I was on The Judgement Call Podcast with Torsten Jacobi recently. The recording can be found on the podcast website (https://judgmentcallpodcast.com/2021/06/94-erik-lentz-how-to-build-an-actual-warp-drive/) and YouTube (https://www.youtube.com/watch?v=ZYBD5z_LDSQ). We touched on a number of topics, including faster than light space travel, extra dimensions, the simulation hypothesis, and non-local phenomena. Torsten was an engaging host and, while I am not an expert on every topic we discussed, we had fun exploring possibilities.

Have a great Sunday,

Erik

Comments

  1. LorenzoJune 13, 2021 at 12:49 PM

    Does a hyperbolic 5th dimension facilitate the construction of a warp drive?

    ReplyDelete
    Replies
    1. ErikJune 22, 2021 at 9:32 PM

      I am not sure what you mean. Can you please clarify?

      Delete
    2. John H.July 12, 2021 at 5:50 AM

      Thank you for all your work into making warp drives a reality.

      In your work to decrease the energy requirments for warp drives have there been any indications that different energy distributions might allow for dean drives or similar? And in solving the quantum inequalites could there be a less powerful warp field that allows for the decrease of the effective mass of a vehicle with respect to the surrounding spacetime curvature?

      Lastly if you are a fan of Scifi you might enjoy Alistair Reynold's Revelation Space Series.

      Delete
  2. LorenzoJune 28, 2021 at 1:15 PM

    Would an extra dimension help in the Warp Drive construction? (that's what I meant....would an extra dimension reduce the energy costs?

    ReplyDelete
    Replies
    1. ErikJuly 25, 2021 at 12:14 PM

      Thank you for the clarification. Extra dimensions have been shown to be useful in lower the energy conditions, at least of the Alcubierre solution (https://arxiv.org/abs/0712.1649v6).

      Delete
  3. LorenzoJune 28, 2021 at 1:16 PM

    Have you made any progress on energy reduction in the meantime?

    ReplyDelete
    Replies
    1. Knowitall599August 20, 2021 at 7:51 AM

      I would like to know why so many people without a physics degree like myself have no problem with concepts like this. Its a curious thing whether it is culture or maybe this kind of work in physics requires approximation and that is linked with our creativity. But I also have the same question, in a way as to the progress on energy reduction...I don't see many physicists taking the time to work on a problem like this at the moment. So is Eric Lentz phd?

      Delete
    2. LorenzoSeptember 5, 2021 at 4:41 PM

      I guees just Eric can answer your question properly

      Delete
  4. LorenzoAugust 31, 2021 at 3:49 PM

    https://arxiv.org/abs/2108.10960 New Warp Drive paper

    ReplyDelete
    Replies
    1. ErikSeptember 4, 2021 at 8:52 PM

      Osvaldo Santos-Pereira gave a talk on this paper at the Marcel Grossmann meeting in July. A recording of the session is available on YouTube (https://youtu.be/NqN1c-2fv8Y?t=6870), which also includes talks by Miguel Alcubierre, Matt Visser, myself, and Alexey Bobrick.

      Delete
    2. LorenzoSeptember 5, 2021 at 4:37 PM

      Thanks ��

      Delete
    3. LorenzoSeptember 5, 2021 at 5:27 PM

      Erik have you ever thought about Rindler coordinates? They might lead you into nothing but they might solve the horizon problem

      Delete
  5. GabrielOctober 1, 2021 at 6:56 AM

    Muito legal o que você fez. Parabéns.
    What you do was great. Congratulations.

    ReplyDelete

Post a Comment

Please note that comments undergo a moderation process and may not appear immediately. Thanks!

Popular posts from this blog

The Horizon Problem for Faster than Light Travel

Image
Hello all, As I have mentioned in previous posts, a major hurdle for autonomous FLT travel is the horizon problem. But what is a horizon? Is it some single well-defined concept or a catch-all term for many phenomena? In this post, I present some thoughts on horizons in general relativity theory and their implications for FTL travel using warp drives. A horizon is a limit to the region that can be observed or communicated with in a space. On Earth, horizons can be used to refer to edge of what can be seen when looking out over a vast body of water like an ocean. The limit to what can be seen in this case is caused by the curvature of the Earth's surface and is a cute problem to calculate how distant the horizon appears given the height of an observer above the surface of a spherical Earth (ignoring effects of the Earth's atmosphere) that is straightforward to solve as it is embedded in a Euclidean geometry.  An observer looking out to the Earth's horizon from a height h abov
Read more

Warp Drive Soliton Inertia

Hello All, In this post I log some thoughts on another proposed challenge to superluminal warp drives: acceleration of the soliton past the speed of light. In their paper published earlier this year, Bobrick and Martire ( Introducing Physical Warp Drives ) state on page 17 of their pre-print that one cannot accelerate a subluminal warp drive to superluminal speeds for similar reasons as why one cannot accelerate masses moving through space-time to superluminal speeds: Warp drives can move superluminally only in the same sense as any ordinary inertial mass, test mass, or any other object. Namely, there is no known way of accelerating regular material beyond the speed of light. However, one may postulate a test particle which moves faster than light in relativity, in which case it may continue moving inertially. In the same way, a s warp drives are shells of material, there is no known way of accelerating a warp drive beyond the speed of light. However, one may also postulate the warp
Read more

Response to new paper: "Generic warp drives violate the null energy condition"

 Hello all, I was pointed to a paper that appeared on the arXiv yesterday ( https://arxiv.org/abs/2105.03079v1 ). I am glad to see people taking a close look into my paper ( https://doi.org/10.1088/1361-6382/abe692 , and the latest arXiv version https://arxiv.org/abs/2006.07125v2 ) and the other recent papers on the topic of warp drives ( https://doi.org/10.1088/1361-6382/abdf6e ,  https://arxiv.org/abs/2104.06488 ). I have also been contacted in the last months by several other researchers working to reproduce and expand upon my results. I wanted to make a running post on this paper and a series of posts on other appraisals of my work in this field and the resulting discussions. After reading through their entire paper, I noticed that this new manuscript seems to have overlooked my complete discussion of the weak energy condition (WEC) contained in my published paper, instead referring to an early arXiv manuscript that tracked quantities of energy, momentum, etc. in only an Eulerian f
Read more