Catalytic Quantum Teleportation

We address fundamental limitations of quantum teleportation -- the process transferring information using classical communication and preshared entanglement. develop a new protocol based upon idea ancillary entanglement catalytically, i.e. without depleting it. This is then used to show that catalytic allows for noiseless channel be simulated with quality could never achieved only from shared state, even catalysts small dimension. On one hand, this more faithful transmission generic states fixed amount consumed other shows, first time, catalysis provides genuine advantage in quantum-information processing task. Finally, we similar ideas can directly applied study general problems mechanics. As an application, activate so-called passive states, concept finds widespread application e.g. thermodynamics.