Timeline for Can a system entirely of photons be a Bose-Einsten condensate?
Current License: CC BY-SA 3.0
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| Jan 17, 2012 at 2:46 | comment | added | Ron Maimon | @Metzgeer: A laser is not, and cannot, be in thermal equilibrium. It is a "BEC of photons" because a BEC of matter is just like a matter laser, but the laser can't be in thermal equilibrium without making the laser go away. There is no thermal equilibrium BEC of photons, because their number is not conserved. Why does the bunny of love make people flip out? I like it very much. It is a post-apocalyptic Mad-Max style song, I don't hear that now that the cold war is over. | |
| Jan 6, 2012 at 2:17 | comment | added | metzgeer | Wait, isn't a group of coherent photons in thermal equilibrium just another way of saying laser. So if we imagine a pulse of coherent light not interacting with matter moving along a vector then we can ignore any gravitational component and still have a BEC. Wait this is Ron I'm talking to, oh why can't I get Bunny of Love out of my head, it burns! it Burns! This is right isn't it? A laser pulse is a BEC? | |
| Jan 5, 2012 at 17:25 | history | answered | Ron Maimon | CC BY-SA 3.0 |