I am trying to "perform" a thought experiment suggested in http://arxiv.org/ftp/quant-ph/papers/0206/0206190.pdf (Not that I personally have anything against non-locality Some of my best friends are non-local.) A source generates a single, narrow gated pulse of light containing one photon pair. One photon (say the left hand side) is directed at a very high-Q cavity, while the other heads away towards the right. Since the bandwidth of the cavity is much narrower than the frequency spread of the light pulse, can one expect that most runs of the experiment would show the left photon just bouncing off or passing through the cavity, to be absorbed in the lab walls? And once in many many experiments, the left photon would linger in the cavity, bouncing back and forth hundreds ot times, while the right photon travelled on its way ? No? What are the possible ways this could pan out from this point onward? Would there be something like a "half life" for the excited state of the cavity, after which it would be more and more likely to spit out the bouncing photon? Does it matter whether the right detector is near or far? Are the photons still entangled? Is it possible that both photons would end up in the right-hand side detector, being that they are bosons, and the cavity is (presumably) symmetrical in terms of reflectivity? What if we sent in more photons before the first one was likely to leave the cavity?