Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Near-complete teleportation with coherent state qubits

Yong Wook Cheong, Hai-Woong Lee

Published Jan 11, 2005• 0 citations
Publisher

Abstract

We show that it is in principle possible to teleport a superposed coherent state with the success probability and fidelity of nearly 100% using only linear optical means and an atom-filed interaction. A successful completion of the teleportation requires, however, photocounters that can distinguish between odd and even numbers of photons.

DOI
10.1117/12.580712

Related papers

Near-complete teleportation of a superposed coherent state

Yong Wook Cheong, Hyunjae Kim, Hai-Woong Lee

The four Bell-type entangled coherent states, $\ensuremath{\mid}\ensuremath{\alpha}⟩\ensuremath{\mid}\ensuremath{-}\ensuremath{\alpha}⟩\ifmmode\pm\else\textpm\fi{}\ensuremath{\mid}\ensuremath{-}\ensuremath{\alpha}⟩\ensuremath{\mid}\ensuremath{\alpha}⟩$ and $\ensuremath{\mid}\ensuremath{\alpha}⟩\ensuremath{\mid}\ensuremath{\alpha}⟩\ifmmode\pm\else\textpm\fi{}\ensuremath{\mid}\ensuremath{-}\ensuremath{\alpha}⟩\ensuremath{\mid}\ensuremath{-}\ensuremath{\alpha}⟩$, can be discriminated with a high probability using only linear optical means, as long as $\ensuremath{\mid}\ensuremath{\alpha}\ensuremath{\mid}$ is not too small. Based on this observation, we propose a simple scheme to almost completely teleport a superposed coherent state. The nonunitary transformation that is required to complete the teleportation can be achieved by embedding the receiver's field state in a larger Hilbert space consisting of the field and a single atom and performing a unitary transformation on this Hilbert space.

arXiv:quant-ph/0404173•Physical Review A•Sep 28, 2004•36 citations

Quantum teleportation of a tripartite entangled coherent state

Shivani A. Kumar

The present work proposes a scheme to teleport a tripartite coherent state using an unparalleled four-component state as a quantum channel. The scheme involves linear optical devices like beam splitters and phase shifters. It is shown that, even by taking an uncompromising quantum model, almost a complete teleportation can be achieved with an impressive number of photons. It is also shown that the teleportation fails only if zero photons are found in all the three output modes or zero in two output modes and a nonzero even/odd photon in one mode. However, the probability of getting these output modes is almost negligible.

Modern Physics Letters A•Oct 9, 2021•10 citations

Quantum Teleportation

Hari Prakash

Quantum Teleportation of N qubits with perfect fidelity using maximally entangled states is explained. It is shown that non-maximally entangled states are used the minimum assured fidelity decreases. It is explained how the success 1/2 of teleportation of a superposition of even and odd coherent states suggested by Van Enk and Hirota was modified by Prakash, Chandra, Prakash and Shivani. It is also shown that the decrease in entanglement may sometimes even result in increase in fidelity. so as to make the success nearly 1. It is also explained how decoherence can be taken into account and how such schemes can be applied to similar phenomena of entanglement diversion and entanglement swapping.

Indian Journal of Physics•Dec 1, 2009•23 citations

QUANTUM TELEPORTATION FROM LIGHT TO ATOMIC BOSE–EINSTEIN CONDENSATE

Yu Guo, RONG-SHENG QU

An optical scheme of the quantum teleportation of superposed coherent states from light pulse to the atoms in Bose–Einstein condensate in terms of optical elements is presented. Beam splitters, photodetectors, cross-Kerr medium, and coherent state sources are needed in this scheme. The probability of successful teleportation is also obtained.

Modern Physics Letters B•Apr 20, 2010•1 citation

Quantum teleportation of entangled coherent states

Xiaoguang Wang

We propose a simple scheme for the quantum teleportation of both bipartite and multipartite entangled coherent states with the success probability 1/2. The scheme is based only on linear optical devices such as beam splitters and phase shifters, and two-mode photon number measurements. The quantum channels described by the multipartite maximally entangled coherent states, are readily made by the beam splitters and phase shifters.

arXiv:quant-ph/0102048•Physical Review A•Jul 3, 2001•236 citations

A new optical scheme for teleportation of entangled coherent state

Jie‐Qiao Liao, Kuang Le-Man

We propose a nearly perfect optical scheme for the quantum teleportation of entangled coherent states using optical devices such as nonlinear Kerr media, beam splitters, phase shifters, and photon detectors. Different from those previous schemes, our scheme needs only ``yes'' or `no' measurements of the photon number of the related modes, i.e. nonzero- and zero-photon measurements, while in previous schemes one has to exactly identify the even or odd parity character of the photon numbers detected by detectors.

Chinese Physics•Sep 21, 2006•19 citations
We show that it is in principle possible to teleport a superposed coherent state with the success probability and fidelity of nearly 100% using only linear optical means and an atom-filed interaction. A successful completion of the teleportation requires, however, photocounters that can distinguish between odd and even numbers of photons.
The four Bell-type entangled coherent states, $\ensuremath{\mid}\ensuremath{\alpha}⟩\ensuremath{\mid}\ensuremath{-}\ensuremath{\alpha}⟩\ifmmode\pm\else\textpm\fi{}\ensuremath{\mid}\ensuremath{-}\ensuremath{\alpha}⟩\ensuremath{\mid}\ensuremath{\alpha}⟩$ and $\ensuremath{\mid}\ensuremath{\alpha}⟩\ensuremath{\mid}\ensuremath{\alpha}⟩\ifmmode\pm\else\textpm\fi{}\ensuremath{\mid}\ensuremath{-}\ensuremath{\alpha}⟩\ensuremath{\mid}\ensuremath{-}\ensuremath{\alpha}⟩$, can be discriminated with a high probability using only linear optical means, as long as $\ensuremath{\mid}\ensuremath{\alpha}\ensuremath{\mid}$ is not too small. Based on this observation, we propose a simple scheme to almost completely teleport a superposed coherent state. The nonunitary transformation that is required to complete the teleportation can be achieved by embedding the receiver's field state in a larger Hilbert space consisting of the field and a single atom and performing a unitary transformation on this Hilbert space.
The present work proposes a scheme to teleport a tripartite coherent state using an unparalleled four-component state as a quantum channel. The scheme involves linear optical devices like beam splitters and phase shifters. It is shown that, even by taking an uncompromising quantum model, almost a complete teleportation can be achieved with an impressive number of photons. It is also shown that the teleportation fails only if zero photons are found in all the three output modes or zero in two output modes and a nonzero even/odd photon in one mode. However, the probability of getting these output modes is almost negligible.
Quantum Teleportation of N qubits with perfect fidelity using maximally entangled states is explained. It is shown that non-maximally entangled states are used the minimum assured fidelity decreases. It is explained how the success 1/2 of teleportation of a superposition of even and odd coherent states suggested by Van Enk and Hirota was modified by Prakash, Chandra, Prakash and Shivani. It is also shown that the decrease in entanglement may sometimes even result in increase in fidelity. so as to make the success nearly 1. It is also explained how decoherence can be taken into account and how such schemes can be applied to similar phenomena of entanglement diversion and entanglement swapping.
We propose a nearly perfect optical scheme for the quantum teleportation of entangled coherent states using optical devices such as nonlinear Kerr media, beam splitters, phase shifters, and photon detectors. Different from those previous schemes, our scheme needs only ``yes'' or `no' measurements of the photon number of the related modes, i.e. nonzero- and zero-photon measurements, while in previous schemes one has to exactly identify the even or odd parity character of the photon numbers detected by detectors.