TY - JOUR AU - John Kitching AU - Leo Hollberg C2 - Physical Review A (Atomic, Molecular and Optical Physics) DA - 1999-01-01 LA - en M1 - 59 PB - Physical Review A (Atomic, Molecular and Optical Physics) PY - 1999 TI - Interference-induced Optical Gain Without Population Inversion in Cold, Trapped Ions UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=104980 ER -