Reduction of Noise Effects in Imperfect Graph States

Explore the reduction of noise effects in imperfect graph states in this 41-minute seminar presented by Dr. Konrad Szymański from Universität Siegen. Delve into the importance of graph states as a testing ground for various quantum information schemes, including cryptography, measurement-based quantum computation, error correction, and metrology. Examine the challenges posed by noise in physical implementations such as ion traps, photonic qubits, and superconducting qubits. Discover how different noise processes often result in a mixture of stabilizer states and learn about an approach to detect and reduce noise effects without the need for full error-correcting codes. Follow along as Dr. Szymański demonstrates this method using the example of extracting a Bell pair across distant parts of a graph. Gain insights into maintaining entanglement quality in the presence of noise, even for large distances in certain graph geometries, and understand its implications for future quantum information processing.