Speaker
Description
I will discuss new ideas for direct detection of axion dark matter by employing quantum sensing techniques with nitrogen-vacancy (NV) centers in diamond. NV centers provide a well-motivated and mature quantum-sensing platform, consisting of fully controllable and measurable electron and nuclear spins. I will present our recent efforts to develop and validate quantum-sensing protocols, which we call hybrid-spin decoupling, that exploit the characteristic features of this system to realize co-magnetometry with broadband sensitivity to exotic spin interactions. Throughout the talk, I will emphasize that NV centers, as quantum-sensing devices, offer multiple avenues for quantum advantage, enabling searches over a wide mass range and improving sensitivity.