Cosmos:elementary | They travel to the past faster than light? Time paradox @Cosmos_elementary | Uploaded May 2024 | Updated October 2024, 8 hours ago.
Tachyons are perhaps one of the strangest concepts in physics. Particles that travel faster than light and travel into the past? What might they represent, can they exist, and have there been attempts to find them?”
My video on the Speed of Light
youtube.com/watch?v=pSVPFEM7JsA
My video on warp drives
youtube.com/watch?v=ysIK-Qek8q0
Videos on Imaginary Numbers
youtube.com/playlist?list=PLiaHhY2iBX9g6KIvZ_703G3KJXapKkNaF
00:00 - Intro
02:00 - Tachyons and imaginary mass
10:51 - Tachyons and paradoxes
17:58 - How to find them
Sources
Feinberg’s paper
journals.aps.org/pr/abstract/10.1103/PhysRev.159.1089
Imaginary numbers
khanacademy.org/math/algebra2/x2ec2f6f830c9fb89:complex/x2ec2f6f830c9fb89:imaginary/a/intro-to-the-imaginary-numbers
1962 paper
aapt.scitation.org/doi/10.1119/1.1941773
Tachyons
https://math.ucr.edu/home/baez/physics/ParticleAndNuclear/tachyons.html
space.com/tachyons-facts-about-particles
scientificamerican.com/article/what-is-known-about-tachy
Paradoxes
https://sites.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/spacetime_tachyon/index.html
https://sites.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/spacetime_tachyon/two_spaceship_paradox.html
Cherenkov radiation
iaea.org/newscenter/news/what-is-cherenkov-radiation
Products
skepticalinquirer.org/newsletter/tachyons-and-other-nonentities
FTL and time travel
physicsmatt.com/blog/2016/8/25/why-ftl-implies-time-travel
Antitelephone
https://sci-hub.se/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.2.263
arxiv.org/pdf/hep-th/9508164.pdf
Tachyons
arxiv.org/pdf/1112.4187.pdf
Search
arxiv.org/pdf/2204.12017.pdf
Neutrinos
nature.com/articles/nature.2012.10249
link.springer.com/article/10.1007/JHEP10(2012)093
Black holes
arxiv.org/pdf/2201.02622.pdf
Dark Energy
arxiv.org/pdf/1811.03470.pdf
arxiv.org/pdf/1311.0227.pdf
Dark matter
arxiv.org/pdf/1601.06772.pdf
Supernova remnants
sciencedirect.com/science/article/pii/S2214404815000257?via%3Dihub
Tachyon stars
arxiv.org/pdf/1110.2523.pdf
Tachyons are perhaps one of the strangest concepts in physics. Particles that travel faster than light and travel into the past? What might they represent, can they exist, and have there been attempts to find them?”
My video on the Speed of Light
youtube.com/watch?v=pSVPFEM7JsA
My video on warp drives
youtube.com/watch?v=ysIK-Qek8q0
Videos on Imaginary Numbers
youtube.com/playlist?list=PLiaHhY2iBX9g6KIvZ_703G3KJXapKkNaF
00:00 - Intro
02:00 - Tachyons and imaginary mass
10:51 - Tachyons and paradoxes
17:58 - How to find them
Sources
Feinberg’s paper
journals.aps.org/pr/abstract/10.1103/PhysRev.159.1089
Imaginary numbers
khanacademy.org/math/algebra2/x2ec2f6f830c9fb89:complex/x2ec2f6f830c9fb89:imaginary/a/intro-to-the-imaginary-numbers
1962 paper
aapt.scitation.org/doi/10.1119/1.1941773
Tachyons
https://math.ucr.edu/home/baez/physics/ParticleAndNuclear/tachyons.html
space.com/tachyons-facts-about-particles
scientificamerican.com/article/what-is-known-about-tachy
Paradoxes
https://sites.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/spacetime_tachyon/index.html
https://sites.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/spacetime_tachyon/two_spaceship_paradox.html
Cherenkov radiation
iaea.org/newscenter/news/what-is-cherenkov-radiation
Products
skepticalinquirer.org/newsletter/tachyons-and-other-nonentities
FTL and time travel
physicsmatt.com/blog/2016/8/25/why-ftl-implies-time-travel
Antitelephone
https://sci-hub.se/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.2.263
arxiv.org/pdf/hep-th/9508164.pdf
Tachyons
arxiv.org/pdf/1112.4187.pdf
Search
arxiv.org/pdf/2204.12017.pdf
Neutrinos
nature.com/articles/nature.2012.10249
link.springer.com/article/10.1007/JHEP10(2012)093
Black holes
arxiv.org/pdf/2201.02622.pdf
Dark Energy
arxiv.org/pdf/1811.03470.pdf
arxiv.org/pdf/1311.0227.pdf
Dark matter
arxiv.org/pdf/1601.06772.pdf
Supernova remnants
sciencedirect.com/science/article/pii/S2214404815000257?via%3Dihub
Tachyon stars
arxiv.org/pdf/1110.2523.pdf
