Continuous-variable quantum teleportation of entanglement

Abstract

Entangled coherent states can be used to determine the entanglement fidelity for a device that is designed to teleport coherent states. This entanglement fidelity is universal, in that the calculation is independent of the use of entangled coherent states and applies generally to the teleportation of entanglement using coherent states. The average fidelity is shown to be a poor indicator of the capability of teleporting entanglement; i.e., very high average fidelity for the quantum teleportation apparatus can still result in low entanglement fidelity for one mode of the two-mode entangled coherent state.

5 pages, 1 figure, published version

References in corpus (8)

• Quantum Teleportation is a Universal Computational Primitive
• Entangled coherent states: teleportation and decoherence
• Efficient Classical Simulation of Continuous Variable Quantum Information Processes
• Optimal local implementation of non-local quantum gates
• Quantum information processing for a coherent superposition state via a mixed entangled coherent channel
• Quantum teleportation of entangled coherent states
• No-cloning theorem and teleportation criteria for quantum continuous variables
• Discrete formulation of teleportation of continuous variables

Cited by in corpus (16)

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• Optimal Controlled Teleportation
• Quantum Teleportation of Optical Quantum Gates
• Optimal Controlled teleportation via several kinds of three-qubit states
• Continuous-variable teleportation of a negative Wigner function
• Teleportation of two-mode squeezed states
• Cavity state preparation using adiabatic transfer
• Spacetime replication of continuous variable quantum information
• Optimal tests for continuous-variable quantum teleportation and photodetectors
• Arbitrary Control of Entanglement between two nitrogen-vacancy center ensembles coupling to superconducting circuit qubit
• Generation of macroscopic entangled cat states in a molecular cavity-QED system
• Single-step transfer or exchange of multipartite quantum entanglement with minimum resources
• Entangled coherent states and violations of Bell-CHSH inequalities
• Significance of Fidelity Deviation in Continuous Variable Teleportation
• Parametrized protocol achieving the Heisenberg limit in the optical domain via dispersive atom-light interactions
• Optimal input states for quantifying the performance of continuous-variable unidirectional and bidirectional teleportation