Generation of entangled photons in graphene in a strong magnetic field
Mikhail Tokman, Xianghan Yao, Alexey Belyanin
TL;DR
This paper proposes a novel method to generate polarization-entangled photons using nonlinear optical interactions in magnetized graphene, leveraging its unique electronic properties for quantum information applications.
Contribution
It introduces a new mechanism for entangled photon generation based on four-wave mixing in graphene under a magnetic field, highlighting its high efficiency and potential in infrared quantum optics.
Findings
High rate of photon production in mid/far-infrared range
Giant optical nonlinearity in magnetized graphene
Potential for quantum information applications
Abstract
Entangled photon states attract tremendous interest as the most vivid manifestation of nonlocality of quantum mechanics and also for emerging applications in quantum information. Here we propose a mechanism of generation of polarization-entangled photons, which is based on the nonlinear optical interaction (four-wave mixing) in graphene placed in a magnetic field. Unique properties of quantized electron states in a magnetized graphene and optical selection rules near the Dirac point give rise to a giant optical nonlinearity and a high rate of photon production in the mid/far-infrared range.
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