Sentences with phrase «flat spacetime»

Their calculations show that there is indeed a critical temperature at which an empty, flat spacetime turns into an expanding universe with mass.

What causes this mismatch of the two flat spacetime regions is the large spacetime curvature in the bubble wall that separates the regions.

However, it has been suspected for a while, that there may be a similar version of the «holographic principle» for flat spacetimes.

Not exact matches

In the absence of mass, spacetime is flat and objects traveling through it move in a straight line.

Outside the bubble, spacetime is also flat and no particle can travel faster than light — relative to observers outside the bubble.

In curved spacetimes, when we compare two observers at large separation, we can no longer use the «locally flat» approximation.

When spacetime is curved, the theory applies only «locally» — that is, over regions of spacetime small enough to be considered flat.

But special relativity applies when spacetime is flat.

In fact, we now know that spacetime is flat and that galaxies and radiation are evenly distributed throughout.