Controlling qubit–photon entanglement, entanglement swapping and entropic uncertainty via frequency modulation

We conduct a study into the impact of frequency modulation on the dynamic behavior of qubit–photon entanglement inside a leaky cavity and subsequently on the entanglement swapping between such two qubits. Furthermore, we investigate how frequency modulation can affect the entropic uncertainty and it...

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Bibliographic Details
Published in:European physical journal plus 2021-07, Vol.136 (7), p.778, Article 778
Main Authors: Forozesh, Mohadese, Mortezapour, Ali, Nourmandipour, Alireza
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Atomic
Complex Systems
Condensed Matter Physics
Entanglement
Entropy
Frequency modulation
Lower bounds
Mathematical and Computational Physics
Molecular
Optical and Plasma Physics
Parameter uncertainty
Photons
Physics
Physics and Astronomy
Quantum physics
Regular Article
Theoretical
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Summary:We conduct a study into the impact of frequency modulation on the dynamic behavior of qubit–photon entanglement inside a leaky cavity and subsequently on the entanglement swapping between such two qubits. Furthermore, we investigate how frequency modulation can affect the entropic uncertainty and its lower bound. It is revealed that there are optimal modulation parameters for which the system experiences a long-lasting qubit–photon entanglement as well as a robust swapped entanglement. Moreover, the obtained result indicates that for the optimal modulation parameters, the entropic uncertainty can be maintained small for a long time.
ISSN:2190-5444
2190-5444
DOI:10.1140/epjp/s13360-021-01769-2