21 citations · 44 across the 5 of their papers we have counts for
5 papers
Strong coherent ion-electron coupling using a wire data bus
Baiyi Yu, Ralf Betzholz, Jianming Cai
Ion-ion coupling over long distances represents a highly useful resource for quantum technologies, for example, to sympathetically cool or interconnect qubits in ion-based quantum-…
Accelerated quantum control in a three-level system by jumping along the geodesics
Musang Gong, Min Yu, Ralf Betzholz +4
In a solid-state spin system, we experimentally demonstrate a protocol for quantum-state population transfer with an improved efficiency compared to traditional stimulated Raman ad…
Real-time adaptive sensing of nuclear spins by a single-spin quantum sensor
Jingcheng Wang, Dongxiao Li, Ralf Betzholz +1
Quantum sensing is considered to be one of the most promising subfields of quantum information to deliver practical quantum advantages in real-world applications. However, its impr…
Laser and cavity cooling of a mechanical resonator with a Nitrogen-Vacancy center in diamond
Luigi Giannelli, Ralf Betzholz, Laura Kreiner +2
We theoretically analyse the cooling dynamics of a high-Q mode of a mechanical resonator, when the structure is also an optical cavity and is coupled with a NV center. The NV cente…
Quantum optical master equation for solid-state quantum emitters
Ralf Betzholz, Juan Mauricio Torres, Marc Bienert
We provide an elementary description of the dynamics of defect centers in crystals in terms of a quantum optical master equation which includes spontaneous decay and a simplified v…