Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
Drones Communicate With Each Other Using Quantum Encryption
And you thought drones couldn't get more enigmatic; not only can they communicate with each other, they can do it in a way that can't be overheard by humans.
(Quantum network and physical realization
with mobile drone-based nodes.
(a) A practical quantum network consists of multinode
structure and should provide access for users at any time.
(b) If link distance is over the Rayleigh length limit,
the beam aperture will be divergent and become larger
than the receiver telescope, which inevitably brings
loss to the system.)
Entanglement distribution has been accomplished using a flying drone, and this mobile platform can be generalized for multiple mobile nodes with optical relay among them. Here we develop the first optical relay to reshape the wavefront of photons for their low diffraction loss in free-space transmission.Using two drones, where one distributes the entangled photons and the other serves as relay node, we achieve entanglement distribution with Clauser-Horne-Shimony-Holt at 1 km distance. Key components for entangled source, tracking, and relay are developed with high performance and are lightweight, constructing a scalable airborne system for multinode connection and toward mobile quantum networks.
(Via Optical-Relayed Entanglement Distribution Using Drones as Mobile Nodes)
(Target acquisition: Beams from one drone visible over testing area)
This reminds me of the talk between robots (TBR) feature discussed by Frederik Pohl in his 1954 short story The Midas Plague. In the story, Henry is a companion robot; these robots cooperate with each other, sharing information to better server their masters:
"Fine! Well, get started on the other things, then.""Yes, sir," said Henry, and assumed the curious absent look of a robot talking on the TBR circuits - the Talk Between Robots radio - as it arranged the appointments for its master.
Scroll down for more stories in the same category. (Story submitted 1/29/2021)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 0 )
Related News Stories - (" Communication ")
Birds Learn To Sing Pictures ala Frank Herbert's Distrans
'We will fight in the time of fighting.' - Frank Herbert, 1965.
Polish Turns Your Nail Into A Stylus
'He wrote on it, using the pointed fingernail of his right forefinger...' - Cordwainer Smith, 1950.
Huawei Pura X Folding Phattie Phone
Why can't we get more innovative phone configurations?
Positioned Cybertrucks With Free Starlinks WiFi In LA
'Several thousand of them formed the positioning grid on the rubble pile.' Vernor Vinge, 1999.
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
'If Anyone Is Watching Earth...'
'Our study of your race has convinced us that you are not fitted to leave your planet in the present state of your civilization.'
Epirus High-Power Microwave Defeats Drones
'...the spreading beam of the deranging ray struck them, and Then one toppled and fell. Then another.'
Cloud Of Space Rubbish From China's Long March Rocket
'Within seconds the material was spread out over fifty yards, in a matter of hours it might occupy several cubic miles of space...'
Biomimetic Tendons From Rochu Robotics
'... the curious parallelism to animal motions.'
Living Human Neuron Biological Compute Rack
'The men are dead, but their acquired wisdom lives on and I am the beneficiary.'
Martha Stewart Approves Ojai 'Living Room On Wheels'
'Young people found the driverless car admirable for petting.'
ESA's Draco To Study Heat Of Reentry
'...a synthetic which air-friction would erode.'
Buy A Galaxy? Maybe Start Smaller
'The sky is the limit' just got higher.
The United States Space Academy Is Official
'Is our orbit to Space Academy clear?'
Is There A Global Problem With Who Is Having Children?
'After twenty generations of shillyshallying...'
You Will Eat The Cookies Made From Plastic...
'Our planes are going to start bringing in bales of discarded plastics...'
It's A Giant Robot! You Reporters Have Been Warned!
'... completely forgetting the ship at sight of the awesome figure and great head of the giant Gaut...'
Birds Learn To Sing Pictures ala Frank Herbert's Distrans
'We will fight in the time of fighting.'
ElectionSim: China's 'Ender's Game' Battle Sim, Or Lem's 'Kingdom In A Box'?
'So, Ender, we will now begin your education.'
Tactile Skin Supplier Map
'What strange sensitivity! What an amazing development of science was manifested in every move and act and word of this Robot!'
Flock Stymied By 'Adversarial Fashion'
'Forget the head atop it, the legs below, feet, arms, hands. It compels erasure.'
