Possibility of Coherent Phenomena like Bloch Oscillations with Single Photons via W-States

Details Possibility of Coherent Phenomena like Bloch Oscillations with Single Photons via W-States Possibility of Coherent Phenomena like Bloch Oscillations with Single Photons via W-States

2009-02-09

arxiv.org/abs/0902.1462v2

PHYSICAL REVIEW A 79, 053849 (2009)

Physics

Quantum Physics

5 pages, 7 figures

Scientific paper

We examine the behavior of single photons at multiport devices and inquire if coherent effects are possible. In particular we study how single photons need to be manipulated in order to study coherent phenomena. We show that single photons need to be produced in W states which lead to vanishing mean amplitude but nonzero correlations between the inputs at different ports. Such correlations restore coherent effects with single photons. As a specific example we demonstrate Bloch oscillations with single photons and thus provide strict analog of Bloch oscillation of electrons.

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