# Continuous-variable entangled states of light carrying orbital angular momentum

@article{Pecoraro2019ContinuousvariableES, 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}, year={2019} }

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…

## 7 Citations

### Continuous Variable Entanglement in Non-Zero Orbital Angular Momentum States

- PhysicsProceedings
- 2019

Orbital angular momentum is a discrete degree of freedom that can access an infinite dimensional Hilbert space, thus enhancing the information capacity of a single optical beam. Continuous variables…

### Remote preparation of single photon vortex thermal states

- Physics
- 2020

Photon pairs produced in spontaneous parametric down-conversion are naturally entangled in their transverse spatial degrees of freedom including the orbital angular momentum. Pumping a non-linear…

### Experimental Demonstration of Remotely Creating Wigner Negativity via Quantum Steering.

- PhysicsPhysical review letters
- 2022

Non-Gaussian states with Wigner negativity are of particular interest in quantum technology due to their potential applications in quantum computing and quantum metrology. However, how to create such…

### Controllable probe absorption spectrum via vortex beams excitation in a cascaded atomic system

- Physics
- 2021

Dynamic control of probe absorption spectrum via vortex beams in multilevel systems has attracted much attention because it provides an avenue to observe unique transport properties. In this paper,…

### Spatiotemporal effects on squeezing measurements

- Physics
- 2020

The role of the spatiotemporal degrees of freedom in the preparation and observation of squeezed photonic states, produced by parametric down-conversion, is investigated. The analysis is done with…

### Generalized orbital angular momentum symmetry in parametric amplification

- PhysicsPhysical Review A
- 2022

We investigate interesting symmetry properties verified by the down-converted beams produced in optical parametric amplification with structured light. We show the Poincaré sphere symmetry observed…

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