Non-Gaussian two mode squeezed thermal states in continuous variable quantum teleportation

• URL: http://arxiv.org/abs/2403.03204v1
• Date: Tue, 5 Mar 2024 18:41:48 GMT
• Title: Non-Gaussian two mode squeezed thermal states in continuous variable quantum teleportation
• Authors: Chandan Kumar
• Abstract summary: Photon catalyzed two-mode squeezed thermal (TMST) state has been considered in context of quantum teleportation. We consider a practical scheme for the implementation of nonGaussian operation. We identify single-photon squeezing and single photon subtraction to be optimal for teleporting input coherent states.
• Score: 2.608787297098185
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: While photon catalyzed two mode squeezed vacuum state has been considered in context of quantum teleportation, similar studies have not been yet conducted for photon catalyzed two-mode squeezed thermal (TMST) state. This can be attributed to challenges involved in the evaluation of teleportation fidelity for photon catalyzed TMST state. In this article, we consider a practical scheme for the implementation of non-Gaussian operation, viz., photon subtraction, photon addition, and photon catalysis, on TMST state. The generated states are employed as resources in continuous-variable quantum teleportation. The results show that the three non-Gaussian operations can enhance the teleportation fidelity. Considering the success probability of the non-Gaussian operations, we identify single-photon catalysis and single photon subtraction to be optimal for teleporting input coherent states, at low and intermediate squeezing levels.

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