Information plays a central role both in understanding quantum mechanics and as a
field of possible applications. With reference to concrete experiments I will review
the fundamental phenomena in quantum physics from an information perspective:
quantum superposition, quantum entanglement and objective randomness. And I
will show how these fundamental concepts are applied in various quantum
information protocols like quantum communication, quantum teleportation and
quantum computation. I will then discuss recent fundamental experiments made
possible by the technological development in quantum information science, which
shed new light again on the foundations of quantum physics. In the talk, I will also
try to venture into musings about possibilities for application in biological systems.