We study the possibilities and the limits of quantum information processing in different scenarios and for different tasks.
E.g.: channel discrimination with entanglement and local measurements coordinated by classical communication  (relevant for quantum metrology )
 Einstein–Podolsky-Rosen steering provides the advantage in entanglement-assisted subchannel […], M. Piani and J. Watrous, arXiv:1406.0530 (2014) and references therein
 Advances in Quantum Metrology, V. Giovannetti, Seth Lloyd and Lorenzo Maccone, Nature Photonics 5, 222 (2011)