Abstract
Solid-state spins such as nitrogen-vacancy (NV) center are promising platforms for large-scale quantum networks. Despite the optical interface of NV center system, however, the significant attenuation of its zero-phonon-line photon in optical fiber prevents the network extended to long distances. Therefore a telecom-wavelength photon interface would be essential to reduce the photon loss in transporting quantum information. Here we propose an efficient scheme for coupling telecom photon to NV center ensembles mediated by rare-earth doped crystal. Specifically, we proposed protocols for high fidelity quantum state transfer and entanglement generation with parameters within reach of current technologies. Such an interface would bring new insights into future implementations of long-range quantum network with NV centers in diamond acting as quantum nodes.
Highlights
Quantum network based on solid-state quantum memories are a promising platform for long range quantum communication and remote sensing [1,2,3]
The schematic of our proposed hybrid system is depicted in figure 1: A rare-earth doped crystals (REDC) is embedded in optical cavity and microwave resonator simultaneously, and a nitrogen vacancy (NV) center spin ensemble is in the same resonator
We propose a hybrid system to interface an ensemble of NV centers to photons at telecom wavelength
Summary
Original content from this Abstract work may be used under Solid-state spins such as nitrogen-vacancy (NV) center are promising platforms for large-scale quantum the terms of the Creative Commons Attribution 3.0 networks. Zero-phonon-line photon in optical fiber prevents the network extended to long distances. We propose an efficient scheme for coupling telecom photon to NV center the work, journal citation ensembles mediated by rare-earth doped crystal. Quantum state transfer and entanglement generation with parameters within reach of current technologies. Such an interface would bring new insights into future implementations of long-range quantum network with NV centers in diamond acting as quantum nodes
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