In 2007, Scientists from the Massachusetts Institute of Technology (MIT)demonstrated 40% wireless power transfer efficiency over 2 meters of separation, which received great publicity Unlike past inductive methods whose decays rapidly with distance, this new scheme uses strongly coupled magnetic resonance(SCMR)Researchers further developed this scheme using the adiabatic passage technique and the transition less quantum driving (TQD) algorithm which are well known technique in quantum optics and nuclear magnetic resonance
Chathuranga M. Wijerathna Basnayaka This is in essence, the same process that Nicola Tesla described in the early 20th century, but disguised in modern parlance, presumably to make new patents possible.
In essence you build two identical resonant transformers and set them running in synchronous, identical frequency.
The carefully controlled resonance amplifies the mutual inductance massively and transfers power over distances.
I vaguely recall Tesla claimed >200 miles at around 30% efficiency.