Sorry, I would have typed more but I was being moaned at. I was just pointing out that a few of us here do have physics backgrounds. I wanted to avoid ontological discussions rooted in physics because this is a Buddhism forum, not a physics one (I think the OP mentioned they wanted Canonical sources too... but I might be mistaken). Interestingly, the question of the existence of matter is answered just as inconclusively and cryptically in physics as it appears to be to me in the Dhamma. So, to save many pages of non-Buddhist discussion about physics (which will ultimately lead to the same conclusion - or inconclusion - as the Buddhadhamma) can I suggest we put physics discussions aside?
I'm reminded of the ignoble search, of which this discussion reminds me.
Edit: Repeated myself in my last sentence because I'm still being moaned at. I have to go. I'll leave the repetitive sentence because, upon reading it back, it made me chuckle. I'll check back later. Can someone give a reference and/or quote from the ignoble search? Also, I'm reminded of what the Buddha taught are not fitting topics of discussion for Bhikkhus: this being one of them.