Continuous variable versus hybrid schemes for quantum teleportation of Gaussian states
arXiv:1402.0185 · doi:10.1103/PhysRevA.89.052324
Abstract
In this paper, we examine and compare two fundamentally different teleportation schemes; the well-known continuous variable scheme by Vaidman, Braunstein and Kimble (VBK), and a recently proposed hybrid scheme by Andersen and Ralph (AR). We analyze the teleportation of ensembles of arbitrary pure single-mode Gaussian states using these schemes and see how they fare against the optimal measure-and-prepare strategies -- the benchmarks. In the VBK case, we allow for non-unit gain tuning and consider a class of possibly non-Gaussian resources in order to optimize performance. The results suggest that the AR scheme may likely be a more suitable candidate for beating the benchmarks in the teleportation of squeezing, capable of achieving this for moderate resources in comparison to the VBK scheme. Moreover, our quantification of resources, whereby different protocols are compared at fixed values of the entanglement entropy or the mean energy of the resource states, brings into question any advantage due to non-Gaussianity for quantum teleportation of Gaussian states.
11 pages, 7 figures. Close to published version
References in corpus (19)
- The Quantum Internet
- Experimental quantum teleportation
- Quantum teleportation between light and matter
- Experimental demonstration of quantum memory for light
- Quantum teleportation using active feed-forward between two Canary Islands
- Quantum Teleportation Between Distant Matter Qubits
- Mapping photonic entanglement into and out of a quantum memory
- Quantum memory for squeezed light
- Deterministic quantum teleportation of photonic quantum bits by a hybrid technique
- Continuous variable quantum teleportation with non-Gaussian resources
- Quantum memory for entangled two-mode squeezed states
- Equivalence between Entanglement and the Optimal Fidelity of Continuous Variable Teleportation
- Continuous-variable teleportation in the characteristic-function description
- Experimental demonstration of quantum teleportation of broadband squeezing
- Squeezing the limit: Quantum benchmarks for the teleportation and storage of squeezed states
- Teleportation of squeezing: Optimization using non-Gaussian resources
- Quantum Benchmark for Teleportation and Storage of Squeezed States
- Phase-Covariant Quantum Benchmarks
- Quantum teleportation benchmarks for independent and identically-distributed spin states and displaced thermal states
Cited by in corpus (8)
- Secure continuous variable quantum teleportation and Einstein-Podolsky-Rosen steering
- Continuous-variable quantum teleportation with non-Gaussian entangled states generated via multiple-photon subtraction and addition
- Optimal fidelity of teleportation with continuous-variable using three-tunable parameters in realistic environment
- Certifying quantumness: Benchmarks for the optimal processing of generalized coherent and squeezed states
- Quantum teleportation of qudits by means of generalized quasi-Bell states of light
- Logical measurement-based quantum computation in circuit-QED
- Optimal input states for quantifying the performance of continuous-variable unidirectional and bidirectional teleportation
- Robust Gaussian Teleportation with Attenuations and Non-unity Gain