|
|
|
|
 | |  |
| Since plane waves and Fourier transforms are at the heart of relativistic quantum field theory, this effect can be illustrated using a classical plane wave, without even appealing to quantum operators | |
 | |  |
|
 |
|
|
|
|
|
|
| | |
| The spacetime being modeled by this equation can be neatly separated into time and space, so we can talk of this spacetime as representing the evolution of space in time. | |
| | |
|
|
|
|
|
