Quantum Spintronics
Prof. Jörg Wrachtrup (3. Physikalisches Institut, Universität Stuttgart)

Diamond Quantum Spintronics

Spins will play a key role in future quantum technology. They interact with charge carries and photons and hence are accessible by quantum measurements. Most importantly, spins can show long coherence times with record values of up to 6h even in solids. As a result, they find use as quantum memories or quantum bits in small scale quantum processors. Quite unexpectedly, certain spin defects even prove to be outstanding sensors with quantum limited measurement precision. The talk will describe recent advantages in designing spin-photon interfaces and attempts to scale up quantum registers of interacting spin systems to large scale spin quantum states. While the physics of engineering optimum quantum states in various quantum information applications is subject to intense research in laboratories around the world, diamond quantum sensors start to venture into applications. The talk will also summarize first proof of principle work demonstrating their use in material science, biology, medical imaging, and even industry.