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Creating a switchable optical cavity with controllable quantum-state mapping between two modes
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DOI：10.1038/s41598-018-32989-9.png)
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Abstract
En 中文
We describe how an ensemble of four-level atoms in the diamond-type configuration can be applied to create a fully controllable effective coupling between two cavity modes. The diamond-type configuration allows one to use a bimodal cavity that supports modes of different frequencies or different circular polarisations, because each mode is coupled only to its own transition. This system can be used for mapping a quantum state of one cavity mode onto the other mode on demand. Additionally, it can serve as a fast opening high-Q cavity system that can be easily and coherently controlled with laser fields.
Keywords:
ENTANGLED STATES
SINGLE-ATOM
NOON STATES
FIELD
GENERATION
DYNAMICS
PHOTON
CONCURRENCE
COHERENCE
SCHEME
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