Please use this identifier to cite or link to this item:
|Title:||Efficient excitation of a two-level atom by a single photon in a propagating mode||Authors:||Wang, Y.
|Issue Date:||28-Jun-2011||Citation:||Wang, Y., Minář, J., Sheridan, L., Scarani, V. (2011-06-28). Efficient excitation of a two-level atom by a single photon in a propagating mode. Physical Review A - Atomic, Molecular, and Optical Physics 83 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.83.063842||Abstract:||State mapping between atoms and photons, and photon-photon interactions play an important role in scalable quantum information processing. We consider the interaction of a two-level atom with a quantized propagating pulse in free space and study the probability Pe(t) of finding the atom in the excited state at any time t. This probability is expected to depend on (i) the quantum state of the pulse field and (ii) the overlap between the pulse and the dipole pattern of the atomic spontaneous emission. We show that the second effect is captured by a single parameter Λ[0,8π3], obtained by weighting the dipole pattern with the numerical aperture. Then, Pe(t) can be obtained by solving time-dependent Heisenberg-Langevin equations. We provide detailed solutions for both single-photon Fock state and coherent states and for various temporal shapes of the pulses. © 2011 American Physical Society.||Source Title:||Physical Review A - Atomic, Molecular, and Optical Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/116316||ISSN:||10502947||DOI:||10.1103/PhysRevA.83.063842|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.