Traveling at the speed of light: When science fiction challenges scientists

“Now, if we add a charge, which would create an electric force along with gravitational energy, it would be possible to prevent and repel this problem. [de l’autre côté du trou de ver]. Like a giant magnet, we will be attracted to the North Pole and then driven by the South Pole. Once you’ve done it, you can’t go the other way. Given the details of providing a return trip, this initial shortcut will certainly make it possible to move quickly, but will force us to go around the universe to get back to the starting point. “It’s like you took a shortcut to church, but you had to walk around the village to get home,” says Marie-Christine Angonin.

Being able to travel back and forth through wormholes, such as inside Interstellar, We will need a force whose density will be weaker than a vacuum, a mass that can push us towards the white hole as we approach it. “For that, we need to have a negative mass somewhere,” noted Mary-Christine Angonin. “It would be anti-gravity, a place we would reject rather than be attracted to. Anti-gravity is very much present in science fiction, but it has never been highlighted in everyday life, even in the power of emptiness.”

Concepts are hard to explain by neophytes, they can be fans of any science fiction. This is why the hyperspace description was justified. Ships powered by fictional characters pass through the two ends of the wormhole at speeds faster than the speed of light, thus justifying a speed that does not delay the plot. Note that stage hyperspace in science fiction only borrows certain terms from science, but it is not consistent with any scientific theory.

Metrics of distortion and alkaloids

In 1994, the Mexican physicist Miguel Alcoubier developed a theoretical method of superluminal motion that would not violate the physical principle that light cannot travel faster than the speed of light in space. The Alcubierre metric, theoretically consistent with the special theory of relativity, imagines the possibility of space-time curvature. The spacecraft itself does not move faster than light, but is caught in a “bubble” that allows light to travel from point A to point B faster than light. Sed bubbles are formed as a result of the expansion of the space at the back of the ship on the one hand and the contraction of the space at the front of the ship on the other.

Only here, if this theory is respected Descending The laws of physics, therefore, require energy to bend space-time in order to travel faster than light, the density of which is less than that of a vacuum. However, the principle of negative mass envisioned by Einstein is still only an unproven assumption and difficult to verify.

“The problem is that a particle that travels faster than light will always be faster than light, because it would require infinite energy to reduce it,” said Mary-Christine Angonin. “Conversely, a large object would require an infinite amount of energy to move at the speed of light. And this is not a theoretical infinity, it has been demonstrated by experience. It already requires a lot of energy to happen.

There are space-time bubbles that travel at the speed of light, or faster than light, which is theoretically possible. But the main problem will be a ship in these bubbles. “We have to stop the bubble, make it slower than the speed of light, and that is not possible. Technically, there is no physical way to overcome this obstacle to the speed of light,” said Marie-Christine Angonin.

But then, if we consider that the “distortion engine” – the long theoretical by the screenwriters Star Trek – Negative energy can not be developed due to the very need, will they ever be fiction? Not necessarily. An international group of scientists’ research on other classes of “warp engines” was published in the journal 2021. Classical and quantum gravity.

Scientists in this group, called Applied Physics, have seen a theoretical “distortion engine” that does not require a negative mass. For this to be physically possible, they say, the ship must look like a shield, with the front and back flat. Their display, though incomplete, has the advantage of showing that, from a mathematical point of view, a warp engine could be built.

Albuquerque’s metric was an unrealistic concept and for multiple reasons it was completely impossible to apply in everyday physics. […] What these scientists have shown is that the Alcubierre metric is, among many others, a solution that is easy to implement, so to speak. That’s the decent thing to do, and it should end there. ” “If we consider the fluctuations in vacuum, such experiments would only exist in a theory of quantum space-time with very small energy, and therefore with very small particles. A spacecraft at the speed of light is now completely unreal.”

Despite the interest of scientists in these questions for many years, superluminal travel should therefore be the prerogative of science fiction writers for so long.

Leave a Comment