Monday 29th May, 14:00-15:00
LR3, Engineering Science Thom Building, Oxford
Multi-photon entangled graph states are a fundamental resource in quantum communication networks, distributed quantum computing, and sensing. These states can in principle be created deterministically from quantum emitters such as optically active quantum dots or defects, atomic systems, or superconducting qubits. However, finding efficient schemes to produce such states has been a long-standing challenge. I will present an algorithm that, given a desired multi-photon graph state, determines the minimum number of quantum emitters and precise operation sequences that can produce it. Nitrogen-vacancy (NV) centers in diamond and other color centers in solids coupled to nuclear spin registers are a promising platform for producing photonic graph states. I will present a general formalism to quantify and control the generation of entanglement in such systems as needed for graph state generation.
