A phase-space approach for performing continuous-variable quantum teleportation with a non-Gaussian resource
Abstract
We present a detailed phase-space analysis of continuous-variable quantum teleportation using a photon-subtracted two-mode squeezed Fock state (PS-TMSFS) as an entangled resource. We investigate the performance of PS-TMSFS within the Braunstein-Kimble teleportation protocol. The resource-state preparation is described and the success probability related to the photon-subtraction process is derived analytically. The Wigner characteristic function of PS-TMSFS is calculated and then employed to determine the fidelity for input Gaussian and non-Gaussian states. The dependence of the success probability and the teleportation fidelity on the squeezing parameter and the beam-splitter transmissivity is analyzed for both symmetric and asymmetric photon-subtraction scenarios. This results that the symmetric photon subtraction consistently outperforms the corresponding asymmetric configurations with the (2,2) configuration providing the highest teleportation fidelity among the considered PS-TMSFS resources. A significant improvement over the Gaussian two-mode squeezed vacuum (TMSV) resource is observed for teleporting Gaussian input states, particularly in the low-squeezing regime, whereas the relative advantage for non-Gaussian input states depends on the functioning resource parameters and gradually diminishes as squeezing increases.
Versions
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BibTeX
@misc{ankita2026phasespace,
title = {{A phase-space approach for performing continuous-variable quantum teleportation with a non-Gaussian resource}},
author = {Ankita and Arpita Chatterjee},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2606.25471},
eprint = {2606.25471},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2606.25471},
}
RIS
TY - UNPB
TI - A phase-space approach for performing continuous-variable quantum teleportation with a non-Gaussian resource
AU - Ankita
AU - Arpita Chatterjee
PY - 2026
DA - 2026/09/09
PB - arXiv
DO - 10.48550/arxiv.2606.25471
UR - https://arxiv.org/abs/2606.25471
AB - We present a detailed phase-space analysis of continuous-variable quantum teleportation using a photon-subtracted two-mode squeezed Fock state (PS-TMSFS) as an entangled resource. We investigate the performance of PS-TMSFS within the Braunstein-Kimble teleportation protocol. The resource-state preparation is described and the success probability related to the photon-subtraction process is derived analytically. The Wigner characteristic function of PS-TMSFS is calculated and then employed to determine the fidelity for input Gaussian and non-Gaussian states. The dependence of the success probability and the teleportation fidelity on the squeezing parameter and the beam-splitter transmissivity is analyzed for both symmetric and asymmetric photon-subtraction scenarios. This results that the symmetric photon subtraction consistently outperforms the corresponding asymmetric configurations with the (2,2) configuration providing the highest teleportation fidelity among the considered PS-TMSFS resources. A significant improvement over the Gaussian two-mode squeezed vacuum (TMSV) resource is observed for teleporting Gaussian input states, particularly in the low-squeezing regime, whereas the relative advantage for non-Gaussian input states depends on the functioning resource parameters and gradually diminishes as squeezing increases.
ER -