Quantum-to-Classical Transition with Single-Photon-Added Coherent States of Light

Author:

Zavatta Alessandro1,Viciani Silvia1,Bellini Marco1

Affiliation:

1. Istituto Nazionale di Ottica Applicata, Largo Enrico Fermi, 6, I-50125, Florence, Italy; European Laboratory for Nonlinear Spectroscopy (LENS) and Department of Physics, University of Florence, I-50019 Sesto Fiorentino, Florence, Italy.

Abstract

Single-photon–added coherent states are the result of the most elementary amplification process of classical light fields by a single quantum of excitation. Being intermediate between a single-photon Fock state (fully quantum-mechanical) and a coherent (classical) one, these states offer the opportunity to closely follow the smooth transition between the particle-like and the wavelike behavior of light. We report the experimental generation of single-photon–added coherent states and their complete characterization by quantum tomography. Besides visualizing the evolution of the quantum-to-classical transition, these states allow one to witness the gradual change from the spontaneous to the stimulated regimes of light emission.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference22 articles.

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2. A. I. Lvovsky, S. A. Babichev, Phys. Rev. A66, 011801 (2002).

3. Quantum State Reconstruction of the Single-Photon Fock State

4. A. Zavatta S. Viciani M. Bellini Phys. Rev. A in press (e-print available at http://arxiv.org/abs/quant-ph/0406090).

5. Optical Coherence and Quantum Optics 1995

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