| | |
| | |
Stat |
Members: 3643 Articles: 2'487'895 Articles rated: 2609
28 March 2024 |
|
| | | |
|
Article overview
| |
|
Generating multi-photon W-like states for perfect quantum teleportation and superdense coding | Ke Li
; Fan-Zhen Kong
; Ming Yang
; Fatih Ozaydin
; Qing Yang
; Zhuo-Liang Cao
; | Date: |
Mon, 15 Feb 2016 09:25:57 GMT (1813kb) | Abstract: | An interesting aspect of multipartite entanglement is that for perfect
teleportation and superdense coding, not the maximally entangled W states but a
special class of non-maximally entangled W-like states are required. Therefore,
efficient preparation of such W-like states is of great importance in quantum
communications, which has not been studied as much as the preparation of W
states. In this letter, we propose a simple optical scheme for efficient
preparation of large-scale polarization based entangled W-like states by fusing
two W-like states or expanding a W-like state with an ancilla photon. Our
scheme can also generate large-scale W states by fusing or expanding W or even
W-like states. The cost analysis show that in generating large scale W states,
the fusion mechanism achieves a higher efficiency with non-maximally entangled
W-like states than maximally entangled W states. Our scheme can also start
fusion or expansion with Bell states, and it is composed of a polarization
dependent beam splitter, two polarizing beam splitters and photon detectors.
Requiring no ancilla photons or controlled gates to operate, our scheme can be
realized with the current photonics technology and we believe it enables
advances in quantum teleportation and superdense coding in multipartite
settings. | Source: | arXiv, 1602.5074 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |