Genuine Network Multipartite Entanglement
- URL: http://arxiv.org/abs/2002.02773v3
- Date: Fri, 18 Dec 2020 11:22:41 GMT
- Title: Genuine Network Multipartite Entanglement
- Authors: Miguel Navascues, Elie Wolfe, Denis Rosset, Alejandro Pozas-Kerstjens
- Abstract summary: We argue that a source capable of distributing bipartite entanglement can, by itself, generate genuine $k$-partite entangled states for any $k$.
We provide analytic and numerical witnesses of genuine network entanglement, and we reinterpret many past quantum experiments as demonstrations of this feature.
- Score: 62.997667081978825
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The standard definition of genuine multipartite entanglement stems from the
need to assess the quantum control over an ever-growing number of quantum
systems. We argue that this notion is easy to hack: in fact, a source capable
of distributing bipartite entanglement can, by itself, generate genuine
$k$-partite entangled states for any $k$. We propose an alternative definition
for genuine multipartite entanglement, whereby a quantum state is genuinely
network $k$-entangled if it cannot be produced by applying local
trace-preserving maps over several $k$-partite states distributed among the
parties, even with the aid of global shared randomness. We provide analytic and
numerical witnesses of genuine network entanglement, and we reinterpret many
past quantum experiments as demonstrations of this feature.
Related papers
- Generation of Scalable Genuine Multipartite Gaussian Entanglement with a Parametric Amplifier Network [0.0]
We propose a scheme to generate scalable genuine multipartite continuous-variable entangled states of light using a parametric amplifier network.
We verify the presence of genuine quadripartite, hexapartite, and octapartite entanglement through a violation of the positive partial transpose (PPT) criteria.
arXiv Detail & Related papers (2024-09-04T03:42:48Z) - Deterministic multipartite entanglement via fractional state transfer across quantum networks [0.0]
We propose a fractional quantum state transfer, in which the excitation of an emitter is partially transmitted through the quantum communication channel.
We show that genuine multipartite entangled states can be faithfully prepared within current experimental platforms.
arXiv Detail & Related papers (2024-08-02T10:59:16Z) - Guarantees on the structure of experimental quantum networks [105.13377158844727]
Quantum networks connect and supply a large number of nodes with multi-party quantum resources for secure communication, networked quantum computing and distributed sensing.
As these networks grow in size, certification tools will be required to answer questions regarding their properties.
We demonstrate a general method to guarantee that certain correlations cannot be generated in a given quantum network.
arXiv Detail & Related papers (2024-03-04T19:00:00Z) - Scalable multiparty steering based on a single pair of entangled qubits [0.6553834611557042]
We show that multiparty loophole-free quantum steering is achievable by constructing a quantum network from a set of qubits of which only one pair is entangled.
This work introduces a scalable approach to rigorously verify quantum nonlocality across multiple parties, thus providing a practical tool towards developing the future quantum internet.
arXiv Detail & Related papers (2023-08-04T13:01:51Z) - Multipartite entanglement theory with entanglement-nonincreasing
operations [91.3755431537592]
We extend the resource theory of entanglement for multipartite systems beyond the standard framework of local operations and classical communication.
We demonstrate that in this adjusted framework, the transformation rates between multipartite states are fundamentally dictated by the bipartite entanglement entropies of the respective quantum states.
arXiv Detail & Related papers (2023-05-30T12:53:56Z) - Efficient Bipartite Entanglement Detection Scheme with a Quantum
Adversarial Solver [89.80359585967642]
Proposal reformulates the bipartite entanglement detection as a two-player zero-sum game completed by parameterized quantum circuits.
We experimentally implement our protocol on a linear optical network and exhibit its effectiveness to accomplish the bipartite entanglement detection for 5-qubit quantum pure states and 2-qubit quantum mixed states.
arXiv Detail & Related papers (2022-03-15T09:46:45Z) - Quantum cryptographic resource distillation and entanglement [3.649582705724549]
We look into multipartite quantum states on which quantum cryptographic protocols including quantum key distribution and quantum secret sharing can be perfectly performed.
We define the cryptographic cryptographic resource distillable rate as the rate at which such multipartite state can be distilled from a given multipartite state.
arXiv Detail & Related papers (2021-10-26T13:53:28Z) - Heterogeneous Multipartite Entanglement Purification for
Size-Constrained Quantum Devices [68.8204255655161]
Purifying entanglement resources after their imperfect generation is an indispensable step towards using them in quantum architectures.
Here we depart from the typical purification paradigm for multipartite states explored in the last twenty years.
We find that smaller sacrificial' states, like Bell pairs, can be more useful in the purification of multipartite states than additional copies of these same states.
arXiv Detail & Related papers (2020-11-23T19:00:00Z) - Genuine multipartite nonlocality is intrinsic to quantum networks [0.5156484100374058]
We derive sufficient conditions for entanglement to give rise to genuine multipartite nonlocality in networks.
Our results pave the way towards feasible manners of generating genuine multipartite nonlocality using any connected network.
arXiv Detail & Related papers (2020-04-03T18:00:14Z) - Entanglement Classification via Neural Network Quantum States [58.720142291102135]
In this paper we combine machine-learning tools and the theory of quantum entanglement to perform entanglement classification for multipartite qubit systems in pure states.
We use a parameterisation of quantum systems using artificial neural networks in a restricted Boltzmann machine (RBM) architecture, known as Neural Network Quantum States (NNS)
arXiv Detail & Related papers (2019-12-31T07:40:23Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.