Controlling Quasibound States in 1D Continuum Through Electromagnetic Induced Transparency Mechanism

Details Controlling Quasibound States in 1D Continuum Through Electromagnetic Induced Transparency Mechanism Controlling Quasibound States in 1D Continuum Through Electromagnetic Induced Transparency Mechanism

2008-05-20

arxiv.org/abs/0805.3042v4

Phys. Rev. A. 78, 053806 (2008).

Physics

Quantum Physics

8 pages, 6 figures

Scientific paper

10.1103/PhysRevA.78.053806

We study the coherent scattering process of a single photon confined in an one-dimensional (1D) coupled cavity-array, where a $\Lambda$-type three-level atom is placed inside one of the cavities in the array and behaves as a functional quantum node (FQN). We show that, through the electromagnetic induced transparency (EIT) mechanism, the $\Lambda$-type FQN bears complete control over the reflection and transmission of the incident photon along the cavity-array. We also demonstrate the emergence of a quasibound state of the single photon inside a secondary cavity constructed by two distant FQN's as two end mirrors, from which we are motivated to design an all-optical single photon storage device of quantum coherence.

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