Einstein said everything falls at the same rate. Is that also true for a quantum top?
To the Test
The popular press has been abuzz about a new proposal to use the solar system to test string theory. Turns out that is a bit over-hyped. The actual paper, published in Classical and Quantum Gravity outlines an idea to use the motion of planets and moons to test what is known as the equivalence principle. The reason string theory gets mentioned …
Equivalent Principles
The equivalence principle states that everything falls at the same rate in a gravitational field. But what about antimatter? We think it would fall just like regular matter, but we haven’t yet been able to put that assumption to the test.