Teleportation of squeezing: Optimization using non-Gaussian resources
arXiv:1009.6155 · doi:10.1103/PhysRevA.82.062329
Abstract
We study the continuous-variable quantum teleportation of states, statistical moments of observables, and scale parameters such as squeezing. We investigate the problem both in ideal and imperfect Vaidman-Braunstein-Kimble protocol setups. We show how the teleportation fidelity is maximized and the difference between output and input variances is minimized by using suitably optimized entangled resources. Specifically, we consider the teleportation of coherent squeezed states, exploiting squeezed Bell states as entangled resources. This class of non-Gaussian states includes photon-added and photon-subtracted squeezed states as special cases. At variance with the case of entangled Gaussian resources, the use of entangled non-Gaussian squeezed Bell resources allows for different optimization procedures that lead to inequivalent results. Performing two independent optimization procedures one can either maximize the state teleportation fidelity, or minimize the difference between input and output quadrature variances. The two different procedures are compared depending on the degrees of displacement and squeezing of the input states and on the working conditions in ideal and non-ideal setups.
10 pages, 3 figures, 1 table
References in corpus (41)
- Quantum information with continuous variables
- Quantum teleportation between light and matter
- Teleportation of Quantum States
- Universal Quantum Computation with Continuous-Variable Cluster States
- Entanglement by a beam splitter: nonclassicality as a prerequisite for entanglement
- Observation of squeezed light with 10dB quantum noise reduction
- Schroedinger cat-like states by conditional measurements on a beam-splitter
- Non-gaussian statistics from individual pulses of squeezed light
- Continuous-variable teleportation improvement by photon subtraction via conditional measurement
- Increasing entanglement between Gaussian states by coherent photon subtraction
- Experimental investigation of continuous variable quantum teleportation
- Extremality of Gaussian quantum states
- Multiphoton Quantum Optics and Quantum State Engineering
- Quantum teleportation of light beams
- Teleportation improvement by inconclusive photon subtraction
- High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables
- Entanglement evaluation of non-Gaussian states generated by photon subtraction from squeezed states
- Continuous variable quantum teleportation with non-Gaussian resources
- Quantifying non-Gaussianity for quantum information
- Criteria for Continuous-Variable Quantum Teleportation
- Quantum benchmark for storage and transmission of coherent states
- Optimal estimation of losses at the ultimate quantum limit with non-Gaussian states
- Quantum memory for entangled two-mode squeezed states
- Experimental entanglement distillation of mesoscopic quantum states
- The optimal cloning of quantum coherent states is non-Gaussian
- Nonclassicality of a photon-subtracted Gaussian field
- Quantifying decoherence in continuous variable systems
- Synthesis and tomographic characterization of the displaced Fock state of light
- Experimental demonstration of quantum teleportation of a squeezed state
- Continuous-variable teleportation in the characteristic-function description
- 7 dB quadrature squeezing at 860 nm with periodically-poled KTiOPO4
- Preparation of distilled and purified continuous variable entangled states
- Experimental demonstration of quantum teleportation of broadband squeezing
- Realistic continuous-variable quantum teleportation with non-Gaussian resources
- Experimental demonstration of continuous variable purification of squeezed states
- Experimental distillation of squeezing from non-Gaussian quantum states
- Squeezing the limit: Quantum benchmarks for the teleportation and storage of squeezed states
- Quantum Benchmark for Teleportation and Storage of Squeezed States
- Highly non-Gaussian states created via cross-Kerr nonlinearity
- Squeezed state purification with linear optics and feed forward
- Continuous variable quantum teleportation with sculptured and noisy non-Gaussian resources
Cited by in corpus (19)
- Continuous-variable quantum teleportation with non-Gaussian entangled states generated via multiple-photon subtraction and addition
- Robustness of non-Gaussian entanglement against noisy amplifier and attenuator environments
- Nonclassical correlations in continuous-variable non-Gaussian Werner states
- Continuous-variable entanglement distillation and non-commutative central limit theorems
- Time-evolution of nonlinear optomechanical systems: Interplay of mechanical squeezing and non-Gaussianity
- Enhanced continuous generation of non-Gaussianity through optomechanical modulation
- Continuous variable versus hybrid schemes for quantum teleportation of Gaussian states
- Non-Gaussian entanglement swapping
- Gaussian Continuous-Variable Isotropic State
- Enabling entanglement distillation via optomechanics
- The role of the non-Gaussianity plays in the enhancement of the fidelity in continuous variable quantum teleportation
- Quantum Teleportation with a Class of Non-Gaussian Entangled Resources
- Significance of Fidelity Deviation in Continuous Variable Teleportation
- Quantifying quantum correlation of quasi-Werner state and probing its suitability for quantum teleportation
- Nonclassical resource for continuous variable telecloning with non-Gaussian advantage
- Some aspects of the interplay between bipartite correlations and quantum channels
- Deterministic preparation of non-classical states of light in cavity-optomechanics
- Enhancing Continuous Variable Quantum Teleportation using Non-Gaussian Resources
- Two- and three-mode squeezing in a three-qubit entangled system