Electrical Control of Coherent Spin Rotation of a Single-Spin Qubit
- URL: http://arxiv.org/abs/2007.07543v1
- Date: Wed, 15 Jul 2020 08:39:37 GMT
- Title: Electrical Control of Coherent Spin Rotation of a Single-Spin Qubit
- Authors: Xiaoche Wang, Yuxuan Xiao, Chuanpu Liu, Eric Lee-Wong, Nathan J.
McLaughlin, Hanfeng Wang, Mingzhong Wu, Hailong Wang, Eric E. Fullerton,
Chunhui Rita Du
- Abstract summary: Nitrogen vacancy (NV) centers, optically-active atomic defects in diamond, have attracted tremendous interest for quantum sensing, network, and computing applications.
Here, we report electrical control of the coherent spin rotation rate of a single-spin qubit in NV-magnet based hybrid quantum systems.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Nitrogen vacancy (NV) centers, optically-active atomic defects in diamond,
have attracted tremendous interest for quantum sensing, network, and computing
applications due to their excellent quantum coherence and remarkable
versatility in a real, ambient environment. One of the critical challenges to
develop NV-based quantum operation platforms results from the difficulty to
locally address the quantum spin states of individual NV spins in a scalable,
energy-efficient manner. Here, we report electrical control of the coherent
spin rotation rate of a single-spin qubit in NV-magnet based hybrid quantum
systems. By utilizing electrically generated spin currents, we are able to
achieve efficient tuning of magnetic damping and the amplitude of the dipole
fields generated by a micrometer-sized resonant magnet, enabling electrical
control of the Rabi oscillation frequency of NV spins. Our results highlight
the potential of NV centers in designing functional hybrid solid-state systems
for next-generation quantum-information technologies. The demonstrated coupling
between the NV centers and the propagating spin waves harbored by a magnetic
insulator further points to the possibility to establish macroscale
entanglement between distant spin qubits.
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