Coherence times of Ce3+ spin states in CaWO4 crystal

摘要

We study the coherence times and perform manipulations on the lowest-energy states of trivalent cerium ion in calcium tungstate crystal. We find the phase memory time reaching 14.2 μs and the time of coherent manipulations reaching 0.3 μs in the low-temperature limit, the latter can potentially be elongated by using the rotation angle and off-resonance error correction schemes.