The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2001
Filed:
May. 20, 1998
Akio Motoyoshi, Kumamoto-shi, Kumamoto-ken 860-0082, JP;
Masahiro Matsuoka, Kumamoto-shi, Kumamoto-ken 860-0862, JP;
Koichi Yamaguchi, Kumamoto-shi, Kumamoto-ken 860-0868, JP;
Tetsuya Ogura, Kumamoto-shi, Kumamoto-ken 860-0862, JP;
Tetsuya Yoneda, Kumamoto-shi, Kumamoto-ken 860-0866, JP;
Other;
Abstract
A quantum state or qubit is transmitted from a sender to receiver using a quantum teleportation. For this purpose, first, second and third photons are successively produced from a laser source. The first photon is modified in polarization according to encoded information to be sent. The second and third photons are mutually quantum-mechanically correlated and shared by the sender and receiver, respectively. The sender measures the polarized states of the coincidentally appearing first and second photons and transmits measurement outcomes to the receiver via classical communication. The receiver recovers information of the first photon from the third photon based on his measurement and the measurement outcomes transmitted by the sender.