Single calcium-40 ion as quantum memory for photon polarization: a case study

Abstract

We present several schemes for heralded storage of polarization states of single photons in single ions, using the calcium-40 ion and photons at 854 nm wavelength as specific example. We compare the efficiencies of the schemes and the requirements for their implementation with respect to the preparation of the initial state of the ion, the absorption process and its analysis. These schemes may be used to create and herald entanglement of two distant ions through entanglement swapping; they are easily adapted to other atomic systems and wavelengths.

reviewed and published version

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Cited by in corpus (5)

• Experimental protocol for high-fidelity heralded photon-to-atom quantum state transfer
• Quantum interference in the absorption and emission of single photons by a single ion
• Doubly-heralded single-photon absorption by a single atom
• Full Bell-basis measurement of an atom-photon 2-qubit state and its application for quantum networks
• Deterministic quantum state transfer between remote atoms with photon-number superposition states