Bidirectional quantum teleportation of even and odd coherent states through the multipartite Glauber coherent state: theory and implementation

Ikken, Nada; Slaoui, Abdallah; Ahl Laamara, Rachid; Drissi, Lalla Btissam

doi:10.1007/s11128-023-04132-9

Cited by 13 publications

(6 citation statements)

References 93 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, because QFI characterizes the sensitivity of a quantum state to variations, still encompassing unitary operations, it inherently lacks invariance to general changes, which is easily expected from its non-linear construction (1) and (2). Despite this, there is evidence that entangled states can attain the Heisenberg limit [24] by reaching increased QFI values.…”

Section: Quantum Fisher Information Remarks and Limitationsmentioning

confidence: 99%

“…thus providing an expression for ⃗ n T out which can be inserted in (2). Unfortunately, tracing will imply in the practice repeating the measurement of both controls several times on the bases…”

Section: Output State For the Tracing Out Or The Measuring Of The Con...mentioning

confidence: 99%

“…The knowledge of these parameters can be obtained from intermediate measurements that capture features inherited from these interactions. Parameters could characterize several applied systems as cute sensors [1], featured physical interactions or processes [2], as well as communication channels [3]. For the classical transmission of information, the Fisher information [4] measures the amount of information provided by a random variable associated with an unknown parameter of a statistical distribution, while the quantum analog, the Quantum Fisher Information (QFI) [5], is an extension of this concept used to estimate parameters associated with quantum processes through observable measurements.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Architecture Superposing Indefinite Causal Order and Path Superposition Improving Pauli Channels’ Parameter Estimation

Cardoso-Isidoro,

Delgado

2024

Symmetry

View full text Add to dashboard Cite

Quantum Parameter Estimation (QPE) is commonly led using quantum probe states for the characterization of quantum systems. For these purposes, Quantum Fisher Information (QFI) plays a crucial role by imposing a lower bound for the parametric estimation of quantum channels. Several schemes for obtaining QFI lower bounds have been proposed, particularly for Pauli channels regarding qubits. Those schemes commonly employ either the individual channel, multiple copies of it, or arrangements including communication architectures. The present work aims to propose an architecture involving path superposition and causal indefinite order in superposition. Thus, by controlling the symmetry balance of this superposition, it reaches notable improvements in quantum parameter estimation. The proposed architecture has been tested to find the best possible QPE bounds for a representative and emblematic set of Pauli channels. Further, for the most reluctant channels, it was revisited testing the architecture again under a primary path superposition (using double teleportation) and also using entangled probe states to recombine their outputs with the original undisturbed state. Notable outcomes practically near zero were found for the QPE bounds, stating a hierarchy between the approaches, but anyway reaching a perfect theoretical QPE, particularly for the last path superposition including the proposed architecture.

show abstract

Section: Quantum Fisher Information Remarks and Limitationsmentioning

confidence: 99%

Section: Output State For the Tracing Out Or The Measuring Of The Con...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Architecture Superposing Indefinite Causal Order and Path Superposition Improving Pauli Channels’ Parameter Estimation

Cardoso-Isidoro,

Delgado

2024

Symmetry

View full text Add to dashboard Cite

show abstract

“…It has been experimentally demonstrated in various systems [10,11] and studied theoretically from diverse perspectives [12][13][14]. Additionally, various application protocols have been proposed to enhance performance or meet specific purposes, such as bidirectional quantum teleportation [15], controlled quantum teleportation [16,17], continuous variable teleportation [18], and their combinations [19,20].…”

Section: Introductionmentioning

confidence: 99%

Port-based entanglement teleportation via noisy resource states

Kim,

Jeong

2024

Phys. Scr.

View full text Add to dashboard Cite

Port-based teleportation (PBT) represents a variation of the standard quantum teleportation and is currently being employed and explored within the field of quantum information processing owing to its various applications. In this study, we focus on PBT protocol when the resource state is disrupted by local Pauli noises. Here, we fully characterise the channel of the noisy PBT protocol using Krauss representation. Especially, by exploiting the application of PBT for entanglement distribution necessary in realizing quantum networks, we investigate entanglement transmission through this protocol for each qubit considering noisy resource states, denoted as port-based entanglement teleportation (PBET). Finally, we derive upper and lower bounds for the teleported entanglement as a function of the initial entanglement and the noises. Our study demonstrates that quantum entanglement can be efficiently distributed by protocols utilizing large-sized resource states in the presence of noise and is expected to serve as a reliable guide for developing optimized PBET protocols.To obtain these results, we address that the order of entanglement of two qubit states is preserved through the local Pauli channel, and identify the boundaries of entanglement loss through this teleportation channel.

show abstract

“…Simultaneously, the domain of experimental quantum teleportation has experienced rapid evolution, achieving realizations across a spectrum of physical systems. Noteworthy implementations span photonic systems [22][23][24], trapped atomic configurations [25][26][27], optical systems [28][29][30], semiconductor quantum dots [31][32][33], atomic systems [34][35][36], solid-state systems [37][38][39], and beyond [40]. This dynamic interplay between theoretical proposals and experimental actualizations underscores the versatility and adaptability of quantum teleportation across a myriad of platforms and domains.…”

Section: Introductionmentioning

confidence: 99%

Large teleportation of two-qubit state between non-neighboring nodes based on the utilization of multiple cluster states within quantum networks

El Hadfi,

El Kirdi,

Drissi

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

The transmission of quantum states over extended distances is constrained by photon losses, rulingout direct amplification akin to classical telecommunications due to the non-cloning theorem. Overcomingthis challenge involves implementing quantum repeater protocols that leverage entanglement swapping tocreate long-distance entanglement from shorter distances. A novel multi-hop quantum teleportation scheme,blending concepts from quantum repeaters and teleportation, is under exploration. It aims to transferarbitrary two-qubit states between two distant parties, even in the absence of a direct quantum channel.Intermediate nodes, connected via a four-qubit entangled cluster state as quantum channels, are introducedbased on a more general routing protocol. Bell measurements are independently conducted by the sourcenode (Alice) and all intermediate nodes, with simultaneous transmission of measurement results, significantlyreducing time consumption. Determining the quantum state from Bell measurement results requires onlythe destination node (Bob) for a simple unitary transformation. Moreover, this protocol holds promise forimplementation on the IBM Quantum Experience platform once the requisite quantum circuits are designed.This overview encompasses both the theoretical and experimental status of the proposed scheme, withexperimental findings incorporated into quantum state tomography to verify the accuracy of the transmitted quantum state.

show abstract

Bidirectional quantum teleportation of even and odd coherent states through the multipartite Glauber coherent state: theory and implementation

Cited by 13 publications

References 93 publications

An Architecture Superposing Indefinite Causal Order and Path Superposition Improving Pauli Channels’ Parameter Estimation

An Architecture Superposing Indefinite Causal Order and Path Superposition Improving Pauli Channels’ Parameter Estimation

Port-based entanglement teleportation via noisy resource states

Large teleportation of two-qubit state between non-neighboring nodes based on the utilization of multiple cluster states within quantum networks

Contact Info

Product

Resources

About