Teleportation of a qubit using entangled non-orthogonal states: a comparative study

Sisodia, Mitali; Verma, Vikram; Thapliyal, Kishore; Pathak, Anirban

doi:10.1007/s11128-017-1526-x

Cited by 26 publications

(13 citation statements)

References 43 publications

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“…It is already mentioned that entangled states, which are nonclassical states, are essential for the realization of dense-coding [12] and quantum teleportation 18 of an unknown quantum state [11] and that of a known quantum state, which is referred to as remote state preparation [179]. Further, entanglement is essential for implementation of various variants of teleportation and remote state preparation, such as probabilistic teleportation [180], teleportation using non-orthogonal states [181], quantum information splitting [182], joint remote state preparation [183], hierarchical joint remote state preparation [184], bidirectional controlled state teleportation [185,186], bidirectional controlled remote state preparation [187,186], bidirectional controlled joint remote state preparation [187,186]. It can be used to implement schemes for secure quantum communication, like-Ekert's protocol for QKD [188], Ping-pong protocol for QSDC [170], protocols for two-way secure direct quantum communication known as quantum dialogue 19 [191,192,193], and its variant asymmetric quantum dialogue [194], quantum key agreement [195,196] where two parties contribute equally to construct a key and no that the scheme proposed in [165] was actually a scheme for quantum secure direct communication.…”

Section: Entangled State and Its Applicationsmentioning

confidence: 99%

Classical light vs. nonclassical light: characterizations and interesting applications

Pathak

Ghatak

2017

Journal of Electromagnetic Waves and Applications

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We briefly review the ideas that have shaped modern optics and have led to various applications of light ranging from spectroscopy to astrophysics, and street lights to quantum communication. The review is primarily focused on the modern applications of classical light and nonclassical light. Specific attention has been given to the applications of squeezed, antibunched, and entangled states of radiation field. Applications of Fock states (especially single photon states) in the field of quantum communication are also discussed. *

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Section: Entangled State and Its Applicationsmentioning

confidence: 99%

Classical light vs. nonclassical light: characterizations and interesting applications

Pathak

Ghatak

2017

Journal of Electromagnetic Waves and Applications

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“…Measurement probability for all possible states for a 3 qubit measurement have been experimentally put to use in quantum communications [75][76][77] and designing quantum network 78 prototypes. There are four Bell states which can be written as…”

Section: Quantum Entanglement and Bell Statesmentioning

confidence: 99%

Quantum computing: A measurement and analysis review

Gupta

Nene

2021

Concurrency and Computation

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Computing methodologies with rapid proliferation and need for greater concurrency have evolved over the years from parallel and distributed computing to latest technologies like cloud computing. A paradigm shift in computing methodologies has been witnessed in the form of exponential speed up, optimization of problem solutions, and solvability of few classically unsolvable problems with emergence of quantum computing. The study in this article presents observations on executing basic quantum operations that play a vital role in quantum computing. The results and analysis demonstrate how parameters of time, deviation, and shots have a significant effect on outcomes of quantum circuits executed which can be a reference point for the community in general engaged in designing of quantum circuits, protocols, algorithms, and quantum hardware to leverage quantum characteristics and properties. The study by means of experimental use cases provides a rigorous review of qubit behavior, standard, and entangled qubit measurement with practical results over a simulator and real quantum hardware for variable qubit configurations using a selected platform of IBM Q Experience. With the paradigm shift from classical to quantum computing, this article provides basic but very vital observations which can be brought to use by anyone intending to build quantum applications. K E Y W O R D Sabsolute deviation analysis, bell state measurement, noise model, open-source quantum software projects, quantum measurement, transpiling time INTRODUCTIONAbacus was the first step toward building a computing hardware. Calculators such as the arithmometer remained a fascination after 1820s and its potential was utilized for commercial use. The need for performing complex calculations and constructing mathematical tables like logarithmic tables further lead to the making of difference engine by Charles Babbage which later gave way to a more advanced computing machine-the analytical engine, a general-purpose, fully program-controlled automatic mechanical digital computer. [1][2][3] It is important to realize that the advancements in computational hardware were driven by commercial or military requirements. First generation classical computers had vacuum tubes at the heart of their construction which were replaced with transistors, integrated circuits, very large scale integrated (VLSI) circuits for the purpose of enhancing computing power of a system and reducing hardware size to enable larger information/data processing with lesser time and space available. [4][5][6][7][8] Standalone computation systems were further integrated into networks to provide computational concurrency enabling handling of large data volumes and performing complex computations with evolving computing methodologies from serial computing to distributed computing 9 and parallel computing. 10 Over the recent decades with increase in data volumes, concepts like data mining, big data analytics, and artificial intelligence (AI) emerged, demand for extremely fast processing speeds an...

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“…Further, a comparative study of QD and entanglement in quasi‐Werner states based on bipartite entangled coherent states

(| α, α ⟩ \pm | - α, - α ⟩)

and

(| α, - α ⟩ \pm | - α, α ⟩)

is also reported. [ 54 ] Such states are found useful in the teleporation of coherent states (see [ 55 ] for a review). Siyouri et al.…”

Section: Introductionmentioning

confidence: 99%

Quantifying Quantum Correlation of Quasi‐Werner State and Probing Its Suitability for Quantum Teleportation

2021

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The significance of photon addition in engineering the single‐ and two‐mode (bipartite correlations) nonclassical properties of a quantum state is investigated. Specifically, the behavior of the Wigner function of two quasi‐Werner states constructed by superposing two normalized bipartite m‐photon added coherent states are analyzed. This allows the authors' to quantify the nonclassicality present in the quantum states using Wigner logarithmic negativity (WLN), while quantum correlations are measured using concurrence, entanglement of formation, and quantum discord. The WLN for a two‐mode state corresponds to the sum of the single‐mode nonclassicality and quantum correlations, and both of these are observed to enhance with photon addition manifesting the efficacy of photon addition in the entanglement distillation. Usefulness of photon addition is further established by showing that the performance of the quasi‐Werner states as quantum channel for the teleportation of single‐mode coherent and squeezed states, as quantified via teleportation fidelity, improves with the photon addition. The non‐Gaussian operation is shown effective in stalling the detrimental effects of transmission through noisy channel and/or inefficient detection under realistic scenario. Further, in contrast to a set of existing results, it is established that the negative values of two‐mode Wigner function is not a witness of quantum correlation.

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Teleportation of a qubit using entangled non-orthogonal states: a comparative study

Cited by 26 publications

References 43 publications

Classical light vs. nonclassical light: characterizations and interesting applications

Classical light vs. nonclassical light: characterizations and interesting applications

Quantum computing: A measurement and analysis review

Quantifying Quantum Correlation of Quasi‐Werner State and Probing Its Suitability for Quantum Teleportation

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