Dressed-State Polarization Transfer between Bright & Dark Spins in Diamond

Autor:	Belthangady, Chinmay, Bar-Gill, N., Pham, L. M., Arai, K., Sage, D. Le, Cappellaro, P., Walsworth, R. L.
Rok vydání:	2012
Předmět:	Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics Physics - Atomic Physics
Druh dokumentu:	Working Paper
Popis:	Under ambient conditions, spin impurities in solid-state systems are found in thermally-mixed states and are optically "dark", i.e., the spin states cannot be optically controlled. Nitrogen-vacancy (NV) centers in diamond are an exception in that the electronic spin states are "bright", i.e., they can be polarized by optical pumping, coherently manipulated with spin-resonance techniques, and read out optically, all at room temperature. Here we demonstrate a dressed-state, double-resonance scheme to transfer polarization from bright NV electronic spins to dark substitutional-Nitrogen (P1) electronic spins in diamond. This polarization-transfer mechanism could be used to cool a mesoscopic bath of dark spins to near-zero temperature, thus providing a resource for quantum information and sensing, and aiding studies of quantum effects in many-body spin systems. Comment: 5 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1211.2749 Zobrazit plný text záznamu View this record from Arxiv