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#wormholes — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #wormholes, aggregated by home.social.

  1. Today's #paperOfTheDay is "Why there is Nothing rather than something: A theory of the cosmological constant" from 1988. Like yesterday's paper, it deals with the intersection between quantum field theory and #generalRelativity, but the 30 years between them clearly show. Coleman's 1988 paper is an argument in the style of that time (which structurally is quite similar to much of the older #renormalon literature): Heuristic manipulations of formal objects such as the wave function of the universe, or divergent sums over all spacetime geometries. The outcome of this argument is that if #wormholes exist (caused by quantum effects at a scale that is much smaller than observations, but larger than the Planck scale), they can drive the cosmological constant to zero in an Euclidean path integral formulation of general relativity. As always with Coleman, the language is quite funny and frank about the paper's limitations: He writes "Although I find this theory in many ways very attractive, I must honestly stress its speculative character. It rests on wormhole dynamics and the Euclidean formulation of quantum gravity. This is doubly a house built on sand. [...] the Euclideon formulation of gravity is not a subject with firm foundations and clear rules of procedure; indeed, it is more like a trackless swamp". Observations like these have by now, 30 years later, led to a style of theoretical physics that is much more systematic and mathematical than in the 1980s, but also sometimes less intuitive. #dailyPaperChallenge doi.org/10.1016%2F0550-3213(88

  2. Today's #paperOfTheDay is "Why there is Nothing rather than something: A theory of the cosmological constant" from 1988. Like yesterday's paper, it deals with the intersection between quantum field theory and #generalRelativity, but the 30 years between them clearly show. Coleman's 1988 paper is an argument in the style of that time (which structurally is quite similar to much of the older #renormalon literature): Heuristic manipulations of formal objects such as the wave function of the universe, or divergent sums over all spacetime geometries. The outcome of this argument is that if #wormholes exist (caused by quantum effects at a scale that is much smaller than observations, but larger than the Planck scale), they can drive the cosmological constant to zero in an Euclidean path integral formulation of general relativity. As always with Coleman, the language is quite funny and frank about the paper's limitations: He writes "Although I find this theory in many ways very attractive, I must honestly stress its speculative character. It rests on wormhole dynamics and the Euclidean formulation of quantum gravity. This is doubly a house built on sand. [...] the Euclideon formulation of gravity is not a subject with firm foundations and clear rules of procedure; indeed, it is more like a trackless swamp". Observations like these have by now, 30 years later, led to a style of theoretical physics that is much more systematic and mathematical than in the 1980s, but also sometimes less intuitive. #dailyPaperChallenge doi.org/10.1016%2F0550-3213(88

  3. Types of "Holes" in the Cosmos

    Not all cosmic "holes" are the same — and they’re not just empty space.

    #blackholes #whiteholes #wormholes #universe #cosmos #astronomy #spacefacts #physics

  4.  
    #TimeTravel (#retrograde) is transporting anything into the #past: a #person, a #quantum #signal, a #thought.

    Resulting from some combination of:
    #QuantumEntanglement
    #Wormholes
    #DarkEnergy & #DarkMatter
    #ManyWorlds & #Multiverse
    #Tachyons & faster-than-light (superluminal) #particles
    #Consciousness may involve quantum processes in the #brain
    • Rotating cylinders or gyroscopes (after #HGWells)
    • Higher #dimensional #geometries, folding or looping #SpaceTime
    • & c …

    #Kronodon

  5.  
    #TimeTravel (#retrograde) is transporting anything into the #past: a #person, a #quantum #signal, a #thought.

    Resulting from some combination of:
    #QuantumEntanglement
    #Wormholes
    #DarkEnergy & #DarkMatter
    #ManyWorlds & #Multiverse
    #Tachyons & faster-than-light (superluminal) #particles
    #Consciousness may involve quantum processes in the #brain
    • Rotating cylinders or gyroscopes (after #HGWells)
    • Higher #dimensional #geometries, folding or looping #SpaceTime
    • & c …

    #Kronodon

  6. At KronoMoon.org we see #TimeTravel as the movement of #sentient #beings through #time/other #dimensions OR of #communications #signals from them, which would be much more feasible. It's possible that the #Earth has been receiving #messages from the beyond (the #future?) for billions of years. If these are ever to happen, then they are likely to involve either #WormHoles or #QuantumEntanglement, or both.

  7. At KronoMoon.org we see #TimeTravel as the movement of #sentient #beings through #time/other #dimensions OR of #communications #signals from them, which would be much more feasible. It's possible that the #Earth has been receiving #messages from the beyond (the #future?) for billions of years. If these are ever to happen, then they are likely to involve either #WormHoles or #QuantumEntanglement, or both.

  8. @nemo
    Actually, #thankyou. At @KronoMoon we want folks to consider the possibilities of #TimeTravel without making false promises or relying on spurious #research. The #truth is, many reputable #astrophysicists #think about #interdimensional #exploration and #wormholes all the time. They often conclude that it's too expensive or will take too many years. The probability is #nonzero.

  9. @nemo
    Actually, #thankyou. At @KronoMoon we want folks to consider the possibilities of #TimeTravel without making false promises or relying on spurious #research. The #truth is, many reputable #astrophysicists #think about #interdimensional #exploration and #wormholes all the time. They often conclude that it's too expensive or will take too many years. The probability is #nonzero.

  10. Method for Generating Ultra High Frequency #GravitationalWaves, #Warpdrives & #Wormholes:

    👉doi.org/10.48550/arXiv.2306.06

    Azimuthal acceleration beyond Unruh threshold of multi-pass RHED plasma & charged particle rings to generate Leidenfrost-like vortex tunnels of spacetime phase transition.

    #WarpReactor #WarpCore #FusionEnergy #WarpDrive #Wormhole #Physics #Engineering #PulsedPower #QuantumGravity #Relativity #Accelerator #SpaceTime #Gravity #PlasmaPhysics

  11. What is the shape of spacetime? Neil deGrasse Tyson and comedian Chuck Nice discover the structure of the universe, spacetime geometry, and relativity with theoretical physicist at Princeton Gravity Initiative, Delilah Gates.
    Cosmic Queries – The Shape of the Universe with Neil deGrasse Tyson & Delilah Gates