Two particles cannot be entangled in respect to position and momentum, I've read. But can particles be entangled by all other properties, including either position or momentum? For example by energy, momentum, spin and polarization (+some other(s)?) between two photons. I've read in some other threads that more than one property can be entangled, so I guess almost all properties can be entangled. In any case, how can those correlations be experimentally shown, does not measuring one property break the entanglement. Or do other properties stay entangled even then?