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arXiv · 1901.01783

Entanglement transfer in a noisy cavity network with parity-deformed radiation fields

Alireza Dehghani·Bashir Mojaveri·Rasoul Jafarzadeh Bahrbeig·Farzam Nosrati·Rosario Lo Franco
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Abstract

We investigate the effects of parity-deformed radiation fields on the dynamics of entanglement transfer to distant noninteracting atom qubits. These qubits are embedded in two separated lossy cavities connected by a leaky fiber, which acts as a cavity buffer with delocalized modes. The process is studied within a single-excitation subspace, the parity-deformed cavity photons allowing the introduction of static local classical fields which function as a control. The mechanism of state transfer is analyzed in comparison to the uncontrolled case. We find that the transfer evolution exhibits an asymmetry with respect to atom-field detuning, being sensitive to the sign of the detuning. Under a linear interaction controlled by the local classical fields, we show that the entanglement distribution can be both amplified and preserved against the noise. These results motivate developments towards the implementation or simulation of the purely theoretical model employing parity-deformed fields.

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Alireza Dehghani, Bashir Mojaveri, Rasoul Jafarzadeh Bahrbeig, Farzam Nosrati, Rosario Lo Franco. 2019-01-07. Entanglement transfer in a noisy cavity network with parity-deformed radiation fields. https://doi.org/10.1364/josab.36.001858

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