Talk:Quantum cloning

Untitled

This page needs a lot of work. It contains some misconceptions and outdated stuff. I might contribute a little later. 130.232.37.17 (talk) 13:18, 13 February 2013 (UTC)

Please contribute! The page should at least mention universal and state-dependent quantum cloning, as well as mention that if a particular quantum cloning machine achieves the best possible fidelity allowed by quantum mechanics (which just so happens to prevent the use of an universal quantum cloning machine to achieve superluminal communication as described by Nick Herbert in his 1982 publication entitled "FLASH"), then it is said to be optimal. 130.232.37.165 (talk) 16:54, 11 September 2013 (UTC)

Wiki Education Foundation-supported course assignment

This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Student editor(s): Ghartfie, Megsbush, Donaldfee. Peer reviewers: LBuras, Burgers a54, Sguilford.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 07:35, 17 January 2022 (UTC)

A certain blurring of fantasy and reality

Researchers[who?] are seeking ways to build quantum cloning machines, which work at the so-called quantum limit. The first cloning machine relied on stimulated emission to copy quantum information encoded into single photons. Teleportation, nuclear magnetic resonance, quantum amplification and superior phase conjugation have been some other methods utilized to realize a quantum cloning machine.[2] Ion trapping techniques have been applied to cloning quantum states of ions.[3]

Quantum computing is great math, but if you read this article, you would think it was reporting on lab results.

• "Researchers[who?] are seeking ways to build quantum cloning machines, which work at the so-called quantum limit. " Meaning they are assembling and testing just categories and matrices, right?

• "The first cloning machine relied on stimulated emission to copy quantum information encoded into single photons." Is there a reference with a device, or is it mental stimulation that is being induced?

• "Teleportation" You forgot to say quantum teleportation! You dwell in a hall of mirrors, maybe?

• "Nuclear magnetic resonance" Do you mean as a model?

• "methods utilized to realize a quantum cloning machine" IRL or in the world of concatenation and tensor products?

Wait — stop — reference [2] is a real experiment for stimulated emission. And the Cummins reference in "additional references" is a real experiment with MRI.

Amazing!

Still: let's keep a clear distinction — in choice of language, formatting, and designation of evidence — between cool algebraic gadgets and actual lab experiments. It'll help concentrate our minds. 129.132.210.222 (talk) 22:48, 3 May 2015 (UTC)

Quantum Class Editting

The duplicated sources are good for reference even though they are repetitive. Sguilford (talk) 19:28, 7 December 2018 (UTC)