Quantum control of interacting nuclear and electron spins in diamond

Quantum technologies promise to have a profound impact on society. A quantum computer will be able to solve particular computational problems, the quantum internet brings forth a new, fundamentally secure communication paradigm and quantum sensors enable unprecedented sensitivity. While the exact areas of application and societal value are still...

Order from Disorder: Control of Multi-Qubit Spin Registers in Diamond

Electron spin qubits associated with individual solid-state defects can exhibit exceptional coherence and bright optical interfaces. Furthermore, their magnetic interactions with nuclear spins in the host material present a resource for multi-qubit registers. They have thus emerged as powerful systems with which to develop quantum technologies....

Cavity-enhanced quantum network nodes in diamond

With their ability to process and transfer quantum information, large-scale entanglement-based quantum networks could be at the heart of a new age of quantum information, enabling fundamentally new applications such as distributed quantum computation, quantum communication, and quantum enhanced sensing. Due to their long spin coherence,...

On the creation, coherence and entanglement of multi-defect quantum registers in diamond

Due to its long spin coherence and coherent spin-photon interface the nitrogen vacancy (NV) center in diamond has emerged as a promising platform for quantum science and technology, including quantum networks, quantum computing and quantum sensing. In recent years larger quantum systems have been demonstrated by using optical entanglement links...

From atomic-scale imaging to quantum fault-tolerance with spins in diamond

Owing to its exceptional spin properties and bright spin-photon interface, the nitrogenvacancy (NV) center in diamond has emerged as a promising platformfor quantum science and technology, including quantum communication, quantum computation and quantum sensing. In this thesis we develop novel methods for atomic-scale imaging and high-fidelity...

Quantum error correction with spins in diamond

Digital information based on the laws of quantum mechanics promisses powerful new ways of computation and communication. However, quantum information is very fragile; inevitable errors continuously build up and eventually all information is lost. Therefore, realistic large-scale quantum information processing requires the protection of quantum...