How efficient is transport of quantum cargo through multiple highways?
arXiv:1802.10398 · doi:10.1016/j.aop.2020.168281
Abstract
Quantum states can be efficiently transferred over a long distance if the entire quantum channel can be divided into several small blocks. We consider a scenario in which each block consists of two copies of a multiparty state -- one is used for distributing an arbitrary quantum state to multiple parties while the other channel is required to concentrate it back to a single party. Both in noiseless and local noisy scenarios, we find one-shot quantum capacities of these channels in terms of fidelity, when the initial shared states in each block are the generalized Greenberger-Horne-Zeilinger and the generalized W states. We also consider a situation where optimal local measurements transform multipartite states to bipartite ones which can then be used as single-path channels for quantum state transmission in each segment. We show that in some parameter ranges, the former protocol provides strictly better fidelities than that of the latter, thereby establishing the importance of distributing and concentrating arbitrary quantum states via multipartite entangled states in long distance quantum communication, over the local measurement based protocol. Moreover, we show that in presence of bit flip or bit-phase flip noise, shared generalized Greenberger-Horne-Zeilinger states possess an inherent noise detection and correction mechanism, leading to the same fidelity as in the noiseless case. We consider further noise models also, which do not enjoy the same mechanism. In addition to the fidelity based advantages, the multipath scheme is shown to be useful when one considers a situation in which the completion of the teleportation needs to be delayed. We also find the efficiencies of a quantum channel when a quantum state is transferred over long distances and the entire channel is divided into several small blocks.
arXiv comment22 pages, 7 figures
References in corpus (69)
- Quantum entanglement
- Quantum Cryptography
- The Quantum Internet
- Experimental quantum teleportation
- Advances in Quantum Metrology
- The Security of Practical Quantum Key Distribution
- Purification of Noisy Entanglement and Faithful Teleportation via Noisy Channels
- Good Quantum Error-Correcting Codes Exist
- Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
- Quantum Teleportation is a Universal Computational Primitive
- Experimental Realization of Teleporting an Unknown Pure Quantum State via Dual Classical and Einstein-Podolski-Rosen Channels
- Multi-photon entanglement and interferometry
- NMR Techniques for Quantum Control and Computation
- Quantum computing with trapped ions
- Measurement-based quantum computation
- Ground-to-satellite quantum teleportation
- Quantum teleportation between light and matter
- Advances in Quantum Teleportation
- Quantum Error Correction and Orthogonal Geometry
- Feasible Entanglement Purification for Quantum Communication
- Quantum teleportation using active feed-forward between two Canary Islands
- Quantum Teleportation with a Complete Bell State Measurement
- Entanglement-Assisted Classical Capacity of Noisy Quantum Channels
- Quantum telecloning and multiparticle entanglement
- Quantum Teleportation Between Distant Matter Qubits
- Quantum teleportation and entanglement distribution over 100-kilometre free-space channels
- Complete quantum teleportation using nuclear magnetic resonance
- Simple Quantum Error Correcting Codes
- Efficient long distance quantum communication
- General Scheme for Super Dense Coding between Multi-Parties
- Entanglement versus Correlations in Spin Systems
- Bound entanglement can be activated
- Purification via entanglement swapping and conserved entanglement
- Qudit Quantum State Tomography
- Experimental investigation of continuous variable quantum teleportation
- Satellite-to-ground quantum communication using a 50-kg-class micro-satellite
- Realization of Deterministic Quantum Teleportation with Solid State Qubits
- Quantum teleportation of light beams
- Entanglement Percolation in Quantum Networks
- Localizable Entanglement
- Multi-Particle Entanglement Purification Protocols
- High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables
- Teleportation of Nonclassical Wave Packets of light
- Reliable Quantum State Tomography
- Distributed quantum dense coding
- Unconditional teleportation of continuous-variable entanglement
- Quantum complex networks
- Optimal dense coding with mixed state entanglement
- Channel Capacities versus Entanglement Measures in Multiparty Quantum States
- Colloquium: Trapped ions as quantum bits -- essential numerical tools
- Quantum Computing: Pro and Con
- Remote information concentration using a bound entangled state
- Experimental demonstration of quantum teleportation of a squeezed state
- Entanglement Distribution in Pure-State Quantum Networks
- Experimental realization of optimal asymmetric cloning and telecloning via partial teleportation
- Demonstration of quantum telecloning of optical coherent states
- Experimental demonstration of quantum teleportation of broadband squeezing
- Classical information capacity of superdense coding
- Quantum Repeaters Using Continuous Variable Teleportation
- Distribution of entanglement in large-scale quantum networks
- High-fidelity continuous-variable quantum teleportation toward multi-step quantum operations
- Multipartite Entanglement Accumulation in Quantum States: Localizable Generalized Geometric Measure
- Multipartite entanglement percolation
- Enhancement of Entanglement Percolation in Quantum Networks via Lattice Transformations
- Experimental high fidelity six-photon entangled state for telecloning protocols
- High teleportation rates using cold-atom ensemble based quantum repeaters with Rydberg blockade
- Output state in multiple entanglement swapping
- Monogamy relation in multipartite continuous-variable quantum teleportation
- Remote extraction and destruction of spread qubit information
Cited by in corpus (5)
- Performance of Dense Coding and Teleportation for Random States --Augmentation via Pre-processing
- Significance of Fidelity Deviation in Continuous Variable Teleportation
- Quantum Corralling
- High-fidelity state transfer via quantum walks from delocalized states
- Quantum entanglement percolation under a realistic restriction