Bidirectional quantum teleportation of even and odd coherent states
through the multipartite Glauber coherent state: Theory and implementation
- URL: http://arxiv.org/abs/2306.00505v2
- Date: Thu, 14 Sep 2023 09:39:24 GMT
- Title: Bidirectional quantum teleportation of even and odd coherent states
through the multipartite Glauber coherent state: Theory and implementation
- Authors: Nada Ikken, Abdallah Slaoui, Rachid Ahl Laamara and Lalla Btissam
Drissi
- Abstract summary: We present a quantum teleportation protocol that enables even and odd coherent states to be transmitted and reconstructed over arbitrary distances.
We use the multipartite Glauber coherent state as a quantum resource linking distant partners Alice and Bob.
We show that the choice of the pre-shared quantum channel has a critical role in achieving high BQT efficiency.
- Score: 0.0
- License: http://creativecommons.org/publicdomain/zero/1.0/
- Abstract: Quantum teleportation has become a fundamental building block of quantum
technologies, playing a vital role in the development of quantum communication
networks. Here, we present a bidirectional quantum teleportation (BQT) protocol
that enables even and odd coherent states to be transmitted and reconstructed
over arbitrary distances in two directions. To this end, we employ the
multipartite Glauber coherent state, comprising the
Greenberger-Horne-Zeilinger, ground and Werner states, as a quantum resource
linking distant partners Alice and Bob. The pairwise entanglement existing in
symmetric and antisymmetric multipartite coherent states is explored, and by
controlling the overlap and number of probes constructing various types of
quantum channels, the teleportation efficiency of teleported states in both
directions may be maximized. Besides, Alice's and Bob's trigger phases are
estimated to explore their roles in our protocol using two kinds of quantum
statistical speed referred to as quantum Fisher information (QFI) and
Hilbert-Schmidt speed (HSS). Specifically, we show that the lower bound of the
statistical estimation error, quantified by QFI and HSS, corresponds to the
highest fidelity from Alice to Bob and conversely from Bob to Alice, and that
the choice of the pre-shared quantum channel has a critical role in achieving
high BQT efficiency. Finally, we show how to implement the suggested scheme on
current experimental tools, where Alice can transfer her even coherent state to
Bob, and at the same time, Bob can transfer his odd coherent state to Alice.
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