Entanglement signature in the mode structure of a single photon
C. Di Fidio, W. Vogel
TL;DR
This paper demonstrates that a single photon's mode structure encodes entanglement information of two coupled cavities, enabling the monitoring and transfer of entanglement dynamics.
Contribution
It reveals that entanglement can be imprinted in the mode structure of a single photon emitted from coupled cavities, providing a new way to analyze and transfer quantum correlations.
Findings
Single photon mode structure reflects intracavity entanglement.
Photon carries information on the concurrence of cavity fields.
Potential for recording and transferring entanglement dynamics.
Abstract
It is shown that entanglement, which is a quantum correlation property of at least two subsystems, is imprinted in the mode structure of a single photon. The photon, which is emitted by two coupled cavities, carries the information on the concurrence of the two intracavity fields. This can be useful for recording the entanglement dynamics of two cavity fields and for entanglement transfer.
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