Skip to main content

Physicists Achieve Quantum Teleportation of Photon Over 25 Kilometers

Physicists Achieve Quantum Teleportation of Photon Over 25 Kilometers

September 22, 2014 | by Lisa Winter
Photo credit: University of Geneva
For the first time, a team of physicists have successfully teleported a quantum state of a photon to a crystal over 25 kilometers away through a fiber optic cable. This effectively showed that the photon’s quantum state, not its composition, is important to the teleportation process. The team was led by Nicolas Gisin of the University of Geneva and the results were published in the journal Nature Photonics. With this new paper, Gisin’s team has successfully squashed the previous record they set a decade ago by teleporting a quantum state of a proton 6 kilometers.
The quantum state of the photon is able to preserve information under extreme conditions, including the difference between traveling as light or becoming stored in the crystal like matter. The photon’s state acts as information that can be teleported along great distances using the optical fiber, and can be stored within the crystal. This was achieved due to a phenomenon in quantum mechanics known as entanglement, where two particles have a correlation, despite the fact that they aren’t touching and transmitting information to one another.
To test this and ensure what they were observing was actually happening, one photon was stored in a crystal while the other was sent along optical fiber, over a distance of 25 kilometers. The photon that was sent along the optical fiber collides with a third photon, which was assumed to destroy them both. However, the information from the first photon was transferred to the third photon in the collision, like the transfer of energy when one billiard ball hits another. The information from the third photon came back to the crystal where it could be measured to ensure the information was preserved between the first and the second.
The photon did not physically “teleport” as we are used to hearing about in science fiction, where someone’s body can moved from place to place in a matter of seconds. Instead, the information contained on the now-distant photon can be inferred based on what is seen with the information in the photon in the crystal. By knowing one, you already know the other. However, what the information actually is can't be known until it is examined.
Félix Bussières of Gisin’s team explained in a press release that it appears "that the quantum state of the two elements of light, these two entangled photons which are like two Siamese twins, is a channel that empowers the teleportation from light into matter.” Regardless if the information was in crystal or light, there wasn’t a change to the information itself. This could very well mean that the quantum state, not physical state, rules in quantum physics.
Quantum entanglement is the basis for theoretical quantum computing and quantum communication, though it will be a very long time before these results will have real-world implications. The achievements of Gisin's lab could also improve how quantum entanglement interactions are measured.

Comments

Popular posts from this blog

sxhkd volume andbrightness config for dwm on void

xbps-install  sxhkd ------------ mkdir .config/sxhkd cd .config/sxhkd nano/vim sxhkdrc -------------------------------- XF86AudioRaiseVolume         amixer -c 1 -- sset Master 2db+ XF86AudioLowerVolume         amixer -c 1 -- sset Master 2db- XF86AudioMute         amixer -c 1 -- sset Master toggle alt + shift + Escape         pkill -USR1 -x sxhkd XF86MonBrightnessUp          xbacklight -inc 20 XF86MonBrightnessDown          xbacklight -dec 20 ------------------------------------------------------------- amixer -c card_no -- sset Interface volume run alsamixer to find card no and interface names xbps-install -S git git clone https://git.suckless.org/dwm xbps-install -S base-devel libX11-devel libXft-devel libXinerama-devel  vim config.mk # FREETYPEINC = ${X11INC}/freetype2 #comment for non-bsd make clean install   cp config.def.h config.h vim config.h xbps-install -S font-symbola #for emoji on statusbar support     void audio config xbps-i

Hidden Wiki

Welcome to The Hidden Wiki New hidden wiki url 2015 http://zqktlwi4fecvo6ri.onion Add it to bookmarks and spread it!!! Editor's picks Bored? Pick a random page from the article index and replace one of these slots with it. The Matrix - Very nice to read. How to Exit the Matrix - Learn how to Protect yourself and your rights, online and off. Verifying PGP signatures - A short and simple how-to guide. In Praise Of Hawala - Anonymous informal value transfer system. Volunteer Here are five different things that you can help us out with. Plunder other hidden service lists for links and place them here! File the SnapBBSIndex links wherever they go. Set external links to HTTPS where available, good certificate, and same content. Care to start recording onionland's history? Check out Onionland's Museum Perform Dead Services Duties. Introduction Points Ahmia.fi - Clearnet search engine for Tor Hidden Services (allows you

download office 2021 and activate

get office from here  https://tb.rg-adguard.net/public.php open powershell as admin (win+x and a ) type cmd  goto insall dir 1.         cd /d %ProgramFiles(x86)%\Microsoft Office\Office16 2.           cd /d %ProgramFiles%\Microsoft Office\Office16 try 1 or 2 depending on installation  install volume license  for /f %x in ('dir /b ..\root\Licenses16\ProPlus2021VL_KMS*.xrm-ms') do cscript ospp.vbs /inslic:"..\root\Licenses16\%x" activate using kms cscript ospp.vbs /setprt:1688 cscript ospp.vbs /unpkey:6F7TH >nul cscript ospp.vbs /inpkey:FXYTK-NJJ8C-GB6DW-3DYQT-6F7TH cscript ospp.vbs /sethst:s8.uk.to cscript ospp.vbs /act Automatic script (windefender may block it) ------------------------------------------------------------------------------------------------------------------- @echo off title Activate Microsoft Office 2021 (ALL versions) for FREE - MSGuides.com&cls&echo =====================================================================================&