Entanglement, Nonlocality, Quantum Teleportation of Two-mode Non-Gaussian States with Multiphoton Quantum Catalysis

Đạt, Trần Quang

doi:10.1007/s10773-023-05287-y

Cited by 4 publications

(2 citation statements)

References 57 publications

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“…Closer to experimental realization, a recent introduction involves implementing multiphoton catalysis on the PCSs, called the multiphoton catalytic pair coherent states (MCPCSs), using BSs, PNRDs, and Fock states, which has been reported in a recent publication [35]. However, a significant challenge of this scheme lies in the preparation of pure Fock states.…”

Section: Introductionmentioning

confidence: 99%

Enhancing quantum features and teleportation fidelity of two-mode non-Gaussian states using conditional measurements

Truong,

Tran

2024

Laser Phys. Lett.

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The family of two-mode non-Gaussian entangled states, including the pair coherent states (PCSs) and their genealogies, has been extensively investigated regarding their quantum properties and their practical applications in quantum information. Specifically, certain states, such as the multiphoton catalytic pair coherent states (MCPCSs), have been newly introduced under specific experimental conditions. For a more feasible approach, in this paper, we introduce novel nonclassical states obtained by subtracting photons through conditional measurements using beam splitters applied to the two modes of the PCSs. These states are called pair coherent states with conditional measurements (PCSCMs). Our purpose is to demonstrate that the quantum features, such as entanglement, Einstein–Podolsky–Rosen (EPR) correlation, EPR steering, and the average fidelity in teleportation can be enhanced in comparison with both the original PCSs and the MCPCSs. In specific cases, several characteristics are observed in PCSCMs but not inspected in both PCSs and MCPCSs. In our findings, we prove that the quantum characteristics within the PCSCMs are influenced not just by the number of detected photons, denoted by variables k and l, but also by the discrepancy in photon numbers, especially by the difference of k − l.

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Section: Introductionmentioning

confidence: 99%

Enhancing quantum features and teleportation fidelity of two-mode non-Gaussian states using conditional measurements

Truong,

Tran

2024

Laser Phys. Lett.

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“…First, new definitions of quantum states are introduced, such as the two-mode squeezed vacuum state (TMSVS) [6], the pair coherent state [7], the symmetric superposition coherent state [8]. Second, based on the existing states, transformations are used on these states by actions such as photon addition, photon subtraction, superposition of photons addition and subtraction [9], photon catalysis [10] as well as exploiting the nonlinear effect [11]. With the above two methods, the second method is often studied more widely for a deeper purpose, which is to improve the quantum properties of the original states.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of teleportation average fidelity via photon addition operation

Minh Duc,

Quang Dat

2024

J. Phys.: Conf. Ser.

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In this paper, using the linear entropy criterion to quantify the degree of entanglement, we demonstrate that the addition of photons can enhance the entanglement degree of the photon-added two-mode squeezed vacuum states (PATMSVSs). Besides, the entanglement degree can approach ideal in case of squeezing parameter or number of added photons is high. When using PATMSVSs as entanglement resources to teleport a coherent state via a canonical protocol, the results show that the average fidelity of the quantum teleportation process is enhanced by the photon addition operation. The average fidelity increases as the number of photons added to the two-mode increases. In addition, we show that an enhancement in average fidelity can also be achieved by increasing the squeezing parameter of the TMSVS.

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Enhanced entanglement and quantum teleportation of two-mode squeezed vacuum state via multistage non-Gaussian operations

Đức

Đạt

2023

Optik

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Entanglement, Nonlocality, Quantum Teleportation of Two-mode Non-Gaussian States with Multiphoton Quantum Catalysis

Cited by 4 publications

References 57 publications

Enhancing quantum features and teleportation fidelity of two-mode non-Gaussian states using conditional measurements

Enhancing quantum features and teleportation fidelity of two-mode non-Gaussian states using conditional measurements

Enhancement of teleportation average fidelity via photon addition operation

Enhanced entanglement and quantum teleportation of two-mode squeezed vacuum state via multistage non-Gaussian operations

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