Recent content by grassyourhorse

What if you have an empty bunch davies vacuum. I suppose if you have an interacting field theory it would be harder but you have people like sean carroll arguing the conventional wisdom of things appearing in a bunch davies vacuum is wrong since nothing ever gets measured again.

Wdym both particles are destined to be measured? Furthermore the reason i asked about the stretching beyond causal contact is because isnt that what inflation looks at. Modes are stretched beyond hubble radius and thus act as a classical fluctuation rather than a quantum one? Is there more to...

What would you consider as a measurement though? Does the loss of info and perhaps coherence when one of the entangled pair is produced and pulled away by faster than light expansion count as a measurement?

Dyson kleban susskind showed that if their idea of horizon complementarity is correct then boltzmann brains should vastly outnumber normal observers like us. However, there is some caveats, namely hilbert space needs to be finite dimensional. We currently assume that Hilbert space is infinite...