Quantum Switch for the Quantum Internet: Noiseless Communications through Noisy Channels
arXiv:1907.07432 · doi:10.1109/JSAC.2020.2969035
Abstract
Counter-intuitively, quantum mechanics enables quantum particles to propagate simultaneously among multiple space-time trajectories. Hence, a quantum information carrier can travel through different communication channels in a quantum superposition of different orders, so that the relative time-order of the communication channels becomes indefinite. This is realized by utilizing a quantum device known as quantum switch. In this paper, we investigate, from a communication-engineering perspective, the use of the quantum switch within the quantum teleportation process, one of the key functionalities of the Quantum Internet. Specifically, a theoretical analysis is conducted to quantify the performance gain that can be achieved by employing a quantum switch for the entanglement distribution process within the quantum teleportation with respect to the case of absence of quantum switch. This analysis reveals that, by utilizing the quantum switch, the quantum teleportation is heralded as a noiseless communication process with a probability that, remarkably and counter-intuitively, increases with the noise levels affecting the communication channels considered in the indefinite-order time combination.
14 pages, double column
References in corpus (20)
- Purification of Noisy Entanglement and Faithful Teleportation via Noisy Channels
- A quantum network of clocks
- Quantum correlations with no causal order
- Quantum computations without definite causal structure
- Quantum information transfer using photons
- Quantum Clock Synchronization Based on Shared Prior Entanglement
- Experimental Superposition of Orders of Quantum Gates
- Computational advantage from quantum-controlled ordering of gates
- Experimental Verification of an Indefinite Causal Order
- Enhanced communication with the assistance of indefinite causal order
- Perfect discrimination of no-signalling channels via quantum superposition of causal structures
- Indefinite Causal Order in a Quantum Switch
- Exponential Communication Complexity Advantage from Quantum Superposition of the Direction of Communication
- Quantum Internet: from Communication to Distributed Computing!
- Experimental Quantum Switching for Exponentially Superior Quantum Communication Complexity
- Quantum superposition of the order of parties as a communication resource
- Quantum Shannon theory with superpositions of trajectories
- Quantum computation with programmable connections between gates
- Communication through quantum-controlled noise
- Complexity of causal order structure in distributed quantum information processing and its trade-off with entanglement
Cited by in corpus (40)
- Towards a Distributed Quantum Computing Ecosystem
- Quantum Internet Protocol Stack: a Comprehensive Survey
- Designing a Quantum Network Protocol
- Experimental Quantum Communication Enhancement by Superposing Trajectories
- Quantum circuits with classical versus quantum control of causal order
- Work extraction from coherently activated maps via quantum switch
- Experiments on quantum causality
- Experimental Aspects of Indefinite Causal Order in Quantum Mechanics
- Classical Communications with Indefinite Causal Order for completely depolarizing channels
- Beyond Shannon Limits: Quantum Communications through Quantum Paths
- Thermodynamics of quantum switch information capacity activation
- Random-Receiver Quantum Communication
- Influence of noise in entanglement-based quantum networks
- Higher-order Process Matrix Tomography of a passively-stable Quantum SWITCH
- Entanglement Distribution in the Quantum Internet: Knowing when to Stop!
- Deterministic Generation of Multipartite Entanglement via Causal Activation in the Quantum Internet
- Superposed Quantum Error Mitigation
- Enhancing Quantum Computation via Superposition of Quantum Gates
- Satellite-Terrestrial Quantum Networks and the Global Quantum Internet
- Quantum communication through devices with indefinite input-output direction
- Experimental Validation of Enhanced Information Capacity by Quantum Switch in Accordance with Thermodynamic Laws
- Improvement in quantum communication using quantum switch
- Classical communication through quantum causal structures
- Quantum networks boosted by entanglement with a control system
- Memory in quantum processes with indefinite time direction and causal order
- The SWITCH test for discriminating quantum evolutions
- Activation of thermal states by coherently controlled thermalization processes
- Using Quantum Switches to Mitigate Noise in Grover's Search Algorithm
- Significance of Fidelity Deviation in Continuous Variable Teleportation
- How Deep the Theory of Quantum Communications Goes: Superadditivity, Superactivation and Causal Activation
- Coherent control of the causal order of entanglement distillation
- Path superposition activating perfect quantum teleportation ability for separable states
- Quantum switch as a thermodynamic resource in the context of passive states
- Expressibility, entangling power and quantum average causal effect for causally indefinite circuits
- Multifold behavior of the information transmission by the quantum 3-switch
- Sequential device-independent certification of indefinite causal order
- Quantum Paths: a Quantum Walk approach
- Entropic uncertainty under indefinite causal order and input-output direction
- Correlations in a quantum switch-based heat engine with measurements: A proof-of-principle demonstration
- No quantum advantage for violating fixed-order inequalities?