TY - JOUR AU - Carreño Sánchez, Fernando AU - Gómez Calderón, Óscar AU - Antón Revilla, Miguel Ángel AU - Gonzalo Fonrodona, Isabel PY - 2005 DO - 10.1103/PhysRevA.71.063805 SN - 1050-2947 UR - https://hdl.handle.net/20.500.14352/51352 T2 - Physical review A AB - We study the dispersion and absorption spectra of a weak probe in a Delta-type three-level atomic system with closely ground sublevels driven by a strong field and damped by a broadband squeezed vacuum. We analyze the interplay between the spontaneous... LA - eng M2 - 063805/1 PB - American Physical Society KW - Level atom KW - Anomalous-dispersion KW - Propagation KW - System KW - Inversion KW - Field KW - Gain KW - Transparency KW - Transitions KW - Refraction TI - Superluminal and slow light in Lambda-type three-level atoms via squeezed vacuum and spontaneously generated coherence TY - journal article VL - 71 ER -