# Practical distributed quantum information processing with LOCCNet

@article{Zhao2021PracticalDQ, title={Practical distributed quantum information processing with LOCCNet}, author={Xuanqiang Zhao and Benchi Zhao and Zihe Wang and Zhixin Song and Xin Wang}, journal={npj Quantum Information}, year={2021}, volume={7}, pages={1-7} }

Distributed quantum information processing is essential for building quantum networks and enabling more extensive quantum computations. In this regime, several spatially separated parties share a multipartite quantum system, and the most natural set of operations is Local Operations and Classical Communication (LOCC). As a pivotal part in quantum information theory and practice, LOCC has led to many vital protocols such as quantum teleportation. However, designing practical LOCC protocols is…

## 6 Citations

Learning Quantum Entanglement Distillation with Noisy Classical Communications

- Computer ScienceArXiv
- 2022

Noise Aware- LOCCNet (NA-LOCCNet), a proposed approach to implement local processing through parameterized quantum circuits (PQCs) that are optimized to maximize the average quantum state, while account- ing for communication errors, is introduced.

Learning Distributed Quantum State Discrimination with Noisy Classical Communications

- Computer Science, PhysicsArXiv
- 2022

Noise Aware- LOCCNet (NA-LOCCNet) is presented for distributed quantum state discrimination in the presence of noisy classical communication and a noise-aware training design criterion is described.

Detecting and quantifying entanglement on near-term quantum devices

- Physicsnpj Quantum Information
- 2022

Quantum entanglement is a key resource in quantum technology, and its quantification is a vital task in the current noisy intermediate-scale quantum (NISQ) era. This paper combines hybrid…

Entangling remote microwave quantum computers with hybrid entanglement swap and variational distillation

- Physics, Computer Science
- 2022

This work proposes a continuous-variable entanglement-swap approach based on optical-microwaveEntanglement generation, which can boost the ultimate rate by two orders of magnitude at state-of-the-art parameter region, compared with traditional approaches.

A Distributed Architecture for Secure Delegated Quantum Computation

- Computer ScienceEntropy
- 2022

In this paper, we propose a distributed secure delegated quantum computation protocol, by which an almost classical client can delegate a (dk)-qubit quantum circuit to d quantum servers, where each…

Enumerating all bilocal Clifford distillation protocols through symmetry reduction

- Computer Science, MathematicsQuantum
- 2022

This work studies the class of near-term implementable distillation protocols that use bilocal Clifford operations followed by a single round of communication, and introduces tools to enumerate and optimise over all protocols for up to n=5 Bell-diagonal states using a commodity desktop computer.

## References

SHOWING 1-10 OF 97 REFERENCES

Entanglement manipulation beyond local operations and classical communication

- Physics
- 2020

This paper demonstrates that every NPT entangled state can be converted into an LOCC-distillable state using channels that are both dually non-entangling and having a PPT Choi representation and shows that any two states can be interconverted by any polytope approximation to the set of separable channels.

Cost of quantum entanglement simplified

- PhysicsPhysical review letters
- 2020

This Letter introduces an entanglement measure that has a precise information-theoretic meaning as the exact cost required to prepare an entangled state when two distant parties are allowed to perform quantum operations that completely preserve the positivity of the partial transpose.

Hybrid Quantum-Classical Algorithms and Quantum Error Mitigation

- Physics, Computer Science
- 2020

The basic results for hybrid quantum-classical algorithms and quantum error mitigation techniques are reviewed and it is expected that this review to be a useful basis for future studies.

Adaptive recurrence quantum entanglement distillation for two-Kraus-operator channels

- PhysicsPhysical Review A
- 2018

Quantum entanglement serves as a valuable resource for many important quantum operations. A pair of entangled qubits can be shared between two agents by first preparing a maximally entangled qubit…

Quantum state discrimination and its applications

- Computer Science
- 2015

This review serves to strengthen the link between results in quantum state discrimination and quantum information applications, by showing the ways in which the fundamental results are exploited in applications and vice versa.

Entanglement distillation between solid-state quantum network nodes

- PhysicsScience
- 2017

The heralded generation of two copies of a remote entangled state is demonstrated through single-photon–mediated entangling of the electrons and robust storage in the nuclear spins and single-shot measurements herald the distillation of an entangled state with increased fidelity that is available for further use.

General Benchmarks for Quantum Repeaters

- Physics, Computer Science
- 2015

Using a technique based on quantum teleportation, we simplify the most general adaptive protocols for key distribution, entanglement distillation and quantum communication over a wide class of…

Experimental entanglement purification of arbitrary unknown states

- PhysicsNature
- 2003

In these experiments, decoherence is overcome to the extent that the technique would achieve tolerable error rates for quantum repeaters in long-distance quantum communication and the requirement of high-accuracy logic operations in fault-tolerant quantum computation can be considerably relaxed.

Variational Quantum Algorithms

- Physics, Computer ScienceNature Reviews Physics
- 2021

An overview of the field of Variational Quantum Algorithms is presented and strategies to overcome their challenges as well as the exciting prospects for using them as a means to obtain quantum advantage are discussed.

Entanglement cost of quantum channels

- Computer Science2012 IEEE International Symposium on Information Theory Proceedings
- 2012

Here, it is shown that any coding scheme that sends quantum information through a quantum channel at a rate larger than the entanglement cost of the channel has an exponentially small fidelity.