Quantum Benchmark for Teleportation and Storage of Squeezed States
arXiv:0711.3608 · doi:10.1103/PhysRevLett.100.170503
Abstract
We provide a quantum benchmark for teleportation and storage of single-mode squeezed states with zero displacement and a completely unknown degree of squeezing along a given direction. For pure squeezed input states, a fidelity higher than 81.5% has to be attained in order to outperform any classical strategy based on an estimation of the unknown squeezing and repreparation of squeezed states. For squeezed thermal input states, we derive an upper and a lower bound on the classical average fidelity which tighten for moderate degree of mixedness. These results enable a critical discussion of recent experiments with squeezed light.
arXiv comment4 pages, 1 figure; final published version
References in corpus (16)
- Quantum information with continuous variables
- Quantum state transfer and entanglement distribution among distant nodes in a quantum network
- Quantum Teleportation is a Universal Computational Primitive
- Quantum teleportation between light and matter
- Experimental demonstration of quantum memory for light
- Entanglement in continuous variable systems: Recent advances and current perspectives
- Quantum memory for squeezed light
- Experimental investigation of continuous variable quantum teleportation
- Storage and Retrieval of a Squeezed Vacuum
- High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables
- Criteria for Continuous-Variable Quantum Teleportation
- Quantum benchmark for storage and transmission of coherent states
- Fidelity for displaced squeezed states and the oscillator semigroup
- Experimental demonstration of quantum teleportation of a squeezed state
- Experimental demonstration of quantum teleportation of broadband squeezing
- Optimal estimation of squeezing
Cited by in corpus (37)
- Quantum interface between light and atomic ensembles
- Advances in Quantum Teleportation
- Quantum memory for entangled two-mode squeezed states
- Measurement of damping and temperature: Precision bounds in Gaussian dissipative channels
- Entanglement of multiparty stabilizer, symmetric, and antisymmetric states
- The power of symmetric extensions for entanglement detection
- Squeezing the limit: Quantum benchmarks for the teleportation and storage of squeezed states
- Teleportation of squeezing: Optimization using non-Gaussian resources
- Optimal fidelity of teleportation of coherent states and entanglement
- Optimal design and quantum benchmarks for coherent state amplifiers
- Dynamical Quantum Memories
- Quantum benchmarks for pure single-mode Gaussian states
- Phase-Covariant Quantum Benchmarks
- Testing the quantum nature of gravity without entanglement
- Quantum benchmarks for the storage or transmission of quantum light from minimal resources
- Certifying quantumness: Benchmarks for the optimal processing of generalized coherent and squeezed states
- Strong quantitative benchmarking of quantum optical devices
- Efficient verification of continuous-variable quantum states and devices without assuming identical and independent operations
- Quantum amplification and purification of noisy coherent states
- Continuous variable versus hybrid schemes for quantum teleportation of Gaussian states
- Optimal tests for continuous-variable quantum teleportation and photodetectors
- Quantum teleportation benchmarks for independent and identically-distributed spin states and displaced thermal states
- Quantum benchmarking with realistic states of light
- Test one to test many: a unified approach to quantum benchmarks
- Optimal asymptotic cloning machines
- Synchronous Quantum Memories with Time-symmetric Pulses
- Quantum superreplication of states and gates
- Significance of Fidelity Deviation in Continuous Variable Teleportation
- Evolution of squeezed states under the Fock-Darwin Hamiltonian
- Optimal input states for quantifying the performance of continuous-variable unidirectional and bidirectional teleportation
- Estimation of quantum finite mixtures
- Einstein-Podolsky-Rosen-like correlation on a coherent-state basis and inseparability of two-mode Gaussian states
- Averaged fidelity-based steering criteria
- Diagnosing steerability of a bipartite state with the nonsteering threshold
- Necessary and Sufficient Criteria for Gaussian Quantum Teleportation
- Deterministic noiseless amplification of coherent states
- Photon-echo-based quantum memory for optical squeezed states