Keynote Speaker
 Eugene S. Polzik Niels Bohr Institute, Copenhagen University |
Title Quantum communication between quantum memories Abstract One of the challenges in quantum information and communication is a faithful transfer of a quantum state of a pulse of light – an information carrier - onto a state of atomic memory where it can be stored and processed. In particular, storage of entangled states of light is of major importance since entangled states form the basis for many quantum information protocols. A classical method of transferring and transmitting information involves a measurement performed on light followed by writing the classical results of this measurement onto the memory. Since an unknown quantum state cannot be identified by measurements on a single copy of the state, such classical transfer can never be perfect for quantum communication. Moreover, a classical transfer cannot preserve entanglement. The talk will review recent achievements in quantum information transfer between photons and matter, concentrating of multi-atom memories. Generation of entanglement between quantum memories, storage and retrieval of photonic states and teleportation between light and memory will be discussed. |
