In this article authors theorize that classical (not quantum!) non-separable, non-local states are possible. Basically, a variety of classical (not quantum) entanglement:

«Classical analogy of quantum teleportation based onnon-local classicalcorrelation.»Non-local classicaloptical correlation...Here we use the notation jh)i(jv)i) to express a classical state29,31. That is to say, if ^h polarization is measured in one beam, the information of ^v polarization can be ‘‘determined’’ in another beam due to the firstorder field correlation, and vice versa. This means that a classical correlation state has been constructed. Because the correlation between two beams is independent on the separation between them,such a correlation is non-local and can be regarded as a classical analogyof EPR entangled state in quantum mechanics. The problem is whether or not some unique phenomena such as quantum teleportation can be realized by applying such a classical EPR correlation state, which is similar to the case in quantum information process.Non-local classical optical correlation and implementing analogy of quantum teleportation (readcube.com)Classical analogy of quantum teleportation based on non-local classical correlation.

Some articles claim that classical non-separability of the states could be achieved even in acoustic systems:

The sound of Bell states | Communications Physics (nature.com)Here, we experimentally demonstrate the preparation and tunability of acoustic nonseparable states, i.e. Bell states, supported by coupled elastic waveguides.

If all this is true, what applications may classical non-separable, non-local states have for wireless remote information or energy transfer between a sender and receiver? Is classical entanglement less fragile than a quantum one?