TY - JOUR AU - Wineland, David AU - Bollinger, John AU - Itano, Wayne AU - Moore, F AU - Heinzen, D C2 - Physical Review Letters DA - 1992-01-01 LA - en M1 - 46 PB - Physical Review Letters PY - 1992 TI - Spin Squeezing and Reduced Quantum Noise in Spectroscopy, ER -