If 50 = 50, does it matter which 50 is which? (In logic, we call this a tautology.) That means that if we want to truly study space and time as different things, we have to add a second “set” of two dimensions: space and time 1, together, represent space while time 2 and time 3, together, represent time. In a 1+1 scenario, that means the two dimensions are the same, making it redundant. “So their corresponding signs have to interchange.” In other words, the regular, non-light-speed observer’s space and time turn into the time and space, relatively, of the faster-than-light observer. “The time of the superluminal observer becomes space of the subluminal one, and their space becomes time,” Dragan says. That’s because time and space must flip in the math. The Standard Model of Particle Physics, Explainedīut when the observer is going faster than the speed of light, the difference in signs also changes. Why Einstein’s General Relativity Theory Is Flawed.With one flipped sign, the middle term in the polynomial falls away. That’s a small difference in complicated math, but think of the algebra example of the difference of two squares: x² - 16, for example, is the result of (x - 4)(x + 4). “espite our common perception, time and space are strikingly similar according to relativity, and mathematically the only difference between them is the minus sign somewhere in the equations,” Dragan explains. Why do we need three time dimensions? To understand, we have to talk about some math. In the new paper, the researchers upped the ante to include one space dimension and three time dimensions, or 1+3. In earlier work, published in the New Journal of Physics in March 2020, Dragan and his coauthor studied “just” one space dimension and one time dimension, known as 1+1. Perhaps more interestingly, the way general relativity becomes quantum phenomena at speeds greater than light doesn’t seem to introduce any causal paradoxes. In other words, how messy does spacetime get if we take our shuttle up to warp speed? Is everything suddenly in multiple places at once?ĭragan’s new work indicates that it’s at least a possibility. The research team-led by theoretical physicist Andrzej Dragan of the University of Warsaw and the National University of Singapore-has theorized that many parts of quantum physics, like indeterminism and superposition, can be explained if you take general relativity and apply its principles to the superluminal observer. Play icon The triangle icon that indicates to play It’s you in your Star Trek warp-speed shuttle. The superluminal observer is a hypothetical thing that is looking at the universe while traveling faster than light. The key idea at play here is that of a “superluminal observer.” “Superluminal” means faster than light, from super- meaning “more” or “most,” and - luminal like, well, Lumière from Beauty and the Beast, and the lumens that power your home movie projector. And there’s one math trick at superspeeds that may just “flip” your lid. The math is deep and complicated, but the ideas may be within our grasp after all. Specifically, the solution may lie in three dimensions of time, with just one representing space. The secret to faster-than-light physics could be to double down on the number of dimensions, according to new research published last month in the journal Classical and Quantum Gravity. Symmetry is a physics concept that goes all the way back to Galileo’s time.In new research, the lead scientist explains why just one space and one time aren’t enough for this scenario.A faster-than-light “observer” would take general relativity to new quantum places.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |