Continuous-variable entangled states of light carrying orbital angular momentum

  title={Continuous-variable entangled states of light carrying orbital angular momentum},
  author={Adriana Pecoraro and Filippo Cardano and Lorenzo Marrucci and Alberto Porzio},
  journal={Physical Review A},
The orbital angular momentum of light, unlike spin, is an infinite-dimensional discrete variable and may hence offer enhanced performances for encoding, transmitting, and processing information in the quantum regime. Hitherto, this degree of freedom of light has been studied mainly in the context of quantum states with definite number of photons. On the other hand, field-quadrature continuous-variable quantum states of light allow implementing many important quantum protocols not accessible… 

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