Two-mode light states before and after delocalized single-photon addition

Lan, Bo; Yuan, Hao; Xu, Xue-Xiang

doi:10.1103/physreva.106.033703

Cited by 4 publications

(2 citation statements)

References 82 publications

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“…2 |r⟩, which is just the case considered in our recent work [38].Therefore, the resulted state |ψ ⟩ is named as an mode-selective photon-addition TMSVS. Obviously, by tuning the parameters of θ and ϕ, the resulted state may be modulated with a wide range of entanglement phenomena, as described below.…”

Section: Mode-selective Photon-added Tmsvsmentioning

confidence: 95%

“…1 + e iϕ a † 2 ), where ϕ denotes the superposition phase. Based on the above work, our group studied the effect of single-photon addition on two input modes, and the resulted states are entangled with more parameters and complex structures, characterizing more Wigner negativity or even discorrelation [38]. Indeed, this kind nonlocal operation has the effect of delocalization, which can entangle the input independent states or change the entanglement of the input entangled states.…”

Section: Introductionmentioning

confidence: 99%

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Mode-selective photon-added two-mode squeezed vacuum state and its entanglement properties

Li,

Wang,

Cai

et al. 2024

Laser Phys. Lett.

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A class of non-Gaussian entangled states is introduced by applying the nonlocal single-photon addition to two-mode squeezed vacuum state and the properties of entanglement are numerically investigated according to linear entropy and Einstein–Podolsky–Rosen (EPR) steering. After the nonlocal single-photon addition operation, Wigner function of the generated state appears some negative region and loses its Gaussian property in phase space. In essence, non-Gaussian entangled states are generated after applying nonlocal single-photon addition. Additionally, by studying the linear entropy and EPR steering, we find that single-photon addition can enhance their entanglement degree and non-Gaussian steering can be witnessed in a large range of squeezing parameter for the second-order quadratures, which may provide a well application in the fields of quantum information processing.

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Section: Mode-selective Photon-added Tmsvsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Mode-selective photon-added two-mode squeezed vacuum state and its entanglement properties

Li,

Wang,

Cai

et al. 2024

Laser Phys. Lett.

Self Cite

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show abstract

Magnon statistical properties in multiphoton-catalyzed optomagnonics

Peng,

Fu,

2023

Physica A: Statistical Mechanics and its Applications

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Teleportation of hybrid entangled states with continuous-variable entanglement

Malaney

2022

Sci Rep

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Hybrid entanglement between discrete-variable (DV) and continuous-variable (CV) quantum systems is an essential resource for heterogeneous quantum networks. Our previous work showed that in lossy channels the teleportation of DV qubits, via CV-entangled states, can be significantly improved by a new protocol defined by a modified Bell state measurement at the sender. This work explores whether a new, similarly modified, CV-based teleportation protocol can lead to improvement in the transfer of hybrid entangled states. To set the scene, we first determine the performance of such a modified protocol in teleporting CV-only qubits, showing that significant improvement over traditional CV-based teleportation is obtained. We then explore similar modifications in the teleportation of a specific hybrid entangled state showing that significant improvement over traditional CV-based teleportation is again found. For a given channel loss, we find teleporting the DV qubit of the hybrid entangled state can always achieve higher fidelity than teleporting the CV qubit. We then explore the use of various non-Gaussian operations in our modified teleportation protocol, finding that, at a cost of lower success probability, quantum scissors provides the most improvement in the loss tolerance. Our new results emphasize that in lossy conditions, the quantum measurements undertaken at the sender can have a surprising and dramatic impact on CV-based teleportation.

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Two-mode light states before and after delocalized single-photon addition

Cited by 4 publications

References 82 publications

Mode-selective photon-added two-mode squeezed vacuum state and its entanglement properties

Mode-selective photon-added two-mode squeezed vacuum state and its entanglement properties

Magnon statistical properties in multiphoton-catalyzed optomagnonics

Teleportation of hybrid entangled states with continuous-variable entanglement

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