Field Induced Quantum Interference

Xiangqian Jiang, Xiudong Sun

Zhang Xian-zhou

Quantum interference induced by two mode fields has been calculated in potassium atom with a time-dependent multilevel method in present paper. The reasons of destructive interference and instructive interference have been studied.

Robert B. Griffiths

G. S. Agarwal

Various three-level schemes for electromagnetic-field-induced control of absorption are analyzed to isolate the precise nature of the quantum interference. Such interference manifests through the dispersive contributions to the absorption line shapes. Depending on the excitation scheme, the dispersive terms can be either constructive or destructive. The collisional dephasing in some cases can change the nature of interference.

David S. Simon

Dimitrios Charalambidis, Natalia E. Karapanagioti, D. Xenakis +7 more

We present selected examples of recent experimental results in coherent quantum control of processes and products of laser atom interactions. These include control of ionization and autoionization rates, of light induced atomic structure, ionization branching ratios and frequency up-conversion. Quantum interference of atomic transitions, induced by a bichromatic electromagnetic field, is underlying all the results of this work. Since the quantum interference is induced by the field, its parameters govern control of products and processes. Thus control is demonstrated through the wavelength, intensity and phase of the field.