Europhys. Lett.
Volume 71, Number 5, September 2005
Page(s) 744 - 750
Section Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics
Published online 03 August 2005
Europhys. Lett., 71 (5), pp. 744-750 (2005)
DOI: 10.1209/epl/i2005-10154-7

Wave packet dynamics of photon-added coherent states

C. Sudheesh, S. Lakshmibala and V. Balakrishnan

Department of Physics, Indian Institute of Technology Madras Chennai 600 036, India

received 3 June 2005; accepted in final form 4 July 2005
published online 3 August 2005

We show in the framework of a tractable model that revivals and fractional revivals of wave packets afford clear signatures of the extent of departure from coherence and from Poisson statistics of an initial state of the radiation field propagating in a nonlinear medium. We establish this by considering a generic Hamiltonian which models wave packet propagation in a Kerr-like medium, and comparing the non-classical effects displayed by an initial photon-added coherent state with that of an inital ideal coherent state.

42.50.Dv - Nonclassical states of the electromagnetic field, including entangled photon states; quantum state engineering and measurements.
42.50.-p - Quantum optics.
42.50.Md - Optical transient phenomena: quantum beats, photon echo, free-induction decay, dephasings and revivals, optical nutation, and self-induced transparency.

© EDP Sciences 2005