# Quantum versus classical domains for teleportation with continuous variables

@article{Braunstein2001QuantumVC, title={Quantum versus classical domains for teleportation with continuous variables}, author={Samuel L. Braunstein and Christopher A. Fuchs and Harry J. Kimble and Peter van Loock}, journal={Physical Review A}, year={2001}, volume={64}, pages={022321} }

By considering the utilization of a classical channel without quantum entanglement, fidelity Fclassical=1/2 has been established as setting the boundary between classical and quantum domains in the teleportation of coherent states of the electromagnetic field [S. L. Braunstein, C. A. Fuchs, and H. J. Kimble, J. Mod. Opt. 47, 267 (2000)]. We further examine the quantum-classical boundary by investigating questions of entanglement and Bell-inequality violations for the Einstein-Podolsky-Rosen…

## 84 Citations

High-fidelity continuous-variable quantum teleportation toward multistep quantum operations

- Physics
- 2008

The progress in quantum operations of continuous-variable (CV) schemes can be reduced to that in CV quantum teleportation. The fidelity of quantum teleportation of an optical setup is limited by the…

Experimental Realization of Continuous Variable Teleportation

- Physics
- 2002

In quantum teleportation, Alice and Bob neatly circumvent constraints that would otherwise be imposed on Alice's state measurement and Bob's state generation, and are thereby able to reconstruct the original state at Bob’s place.

Quantifying Quantum Correlation of Quasi‐Werner State and Probing Its Suitability for Quantum Teleportation

- PhysicsAnnalen der Physik
- 2021

The significance of photon addition in engineering the single‐ and two‐mode (bipartite correlations) nonclassical properties of a quantum state is investigated. Specifically, the behavior of the…

Deterministic quantum teleportation through fiber channels

- PhysicsScience Advances
- 2018

The deterministic teleportation of optical modes over a 6.0-km fiber channel is realized with continuous variable entanglement and a fidelity of 0.03 for the retrieved quantum state, which breaks through the classical limit of 1/2.

Demonstration of a quantum teleportation network for continuous variables

- PhysicsNature
- 2004

This work reports the experimental realization of a tripartite quantum teleportation network for quantum states of continuous variables (electromagnetic field modes) and demonstrates teleportation of a coherent state between three different pairs in the network, unambiguously demonstrating its tri partite character.

Improving teleportation of continuous variables by local operations

- Physics
- 2005

We study a continuous-variable (CV) teleportation protocol based on a shared entangled state produced by the quantum-nondemolition (QND) interaction of two vacuum states. The scheme utilizes the QND…

Generating continuous variable entangled states for quantum teleportation using a superposition of number-conserving operations

- Physics
- 2015

We investigate the states generated in continuous variable (CV) optical fields by operating them with a number-conserving operator of the type s a ˆ a ˆ † + t a ˆ † a ˆ ?> , formed by the generalized…

Quantum teleportation of light beams

- Physics
- 2003

We experimentally demonstrate quantum teleportation for continuous variables using squeezed-state entanglement. The teleportation fidelity for a real experimental system is calculated explicitly,…

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