- #1
ben_jamin
- 7
- 0
I remember that someone (maybe Hawking) said the total energy of cosmology is zero: the matter hold the positive energy and gravational field possesses the negative energy. But I can't understand it, why the gravational field's energy is negative? As far as I understood, from the view of gauge field, all the fields should possesses the positive energy with the "positive" particle. If we consider the gravational field as the gauge field or it can be quantized, how to understand the negative?