Coupled field induced conversion between destructive and constructive quantum interference

Journal Article · Thu Dec 15 00:00:00 EST 2016 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2016.10.002· OSTI ID:22617436

Jiang, Xiangqian; Sun, Xiudong

We study the control of quantum interference in a four-level atom driven by three coherent fields forming a closed loop. The spontaneous emission spectrum shows two sets of peaks which are dramatically influenced by the fields. Due to destructive quantum interference, a dark line can be observed in the emission spectrum, and the condition of the dark line is given. We found that the conversion between destructive and constructive quantum interference can be achieved through controlling the Rabi frequency of the external fields.

• OSTI ID: 22617436
• Journal Information: Annals of Physics, Vol. 375; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
EMISSION SPECTRA
INTERFERENCE
PEAKS
QUANTUM SYSTEMS