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MISCELLANEOUS TOPICS > Is quantum computation a threat for us?

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message 1: by [deleted user] (new)

~ what is a quantum computer?
It is a device which uses laws of quantum mechanics such as superposition and entanglement to calculate and do any other operation like that much faster than classical computers

~why it is a threat?
Our encryption system basically works on RSA algorithm which works on the principle that there are too many combinations for a given key of code that no ordinary computer will be able to compute that....but quantum computers will be able to do that in seconds thus threatening cyber security

~ a programmable quantum computer has been created already

Note: RSA algorithm https://simple.wikipedia.org/wiki/RSA...

message 2: by Jon (new)

Jon Roland | 22 comments If you mean by "us" humanity as we know it, then yes. However, some essence of us may survive in our successors.

message 3: by Ray (new)

Ray Gardener | 11 comments It might be useful to ask a more generalized question: is it dangerous if computing difficult problems becomes fast? If the answer is no, then quantum computing isn't a threat. If yes, then it's a threat insofar as to what kinds of difficult problems quantum computing can solve.

For example, if a quantum computer makes it easy to create AI, then we could accelerate mass unemployment or even the Singularity.

Or if it showed how to create a working mass teleporter, terrorists could easily place bombs anywhere or "beam away" critical parts of infrastructure or people's tissues. Ditto for synthesizing chemicals, pathogens, etc.

message 4: by Lance, Group Founder (new)

Lance Morcan | 2529 comments quantum computer

a computer which makes use of the quantum states of subatomic particles to store information.

message 5: by WILLIAMw (new)

WILLIAMw | 21 comments Quantum computation may not be; But AI definitely is.

message 6: by James, Group Founder (new)

James Morcan | 10475 comments IBM launches commercial quantum computing – we’re not ready for what comes next https://theconversation.com/ibm-launc...

message 7: by Jim (new)

Jim (jimliedeka) | 593 comments Quantum computing is barely a proof of concept. From what I understand, solving real world problems instantaneously will take more qubits than there are atoms in the universe. I'm going to delay panicking.

message 8: by James, Group Founder (new)

James Morcan | 10475 comments Scientists use quantum computer to predict the future https://www.brisbanetimes.com.au/nati...

Accurately predicting the weather and even the stock market could be on the cards as scientists use quantum computing to predict the future.

Researchers from Queensland’s Griffith University and Singapore's Nanyang Technological University have collaborated to develop a quantum device which can accurately measure possible futures for a set system.

In this case that means tracking the movement of photons - single particles of light - through the system and measuring the outcomes.

Griffith researcher Nora Tischler said while that did not sound impressive in itself, it was a major development in quantum computing with profound implications.

message 9: by James, Group Founder (new)

James Morcan | 10475 comments Information teleported between two computer chips for the first time
Scientists at the University of Bristol and the Technical University of Denmark have achieved quantum teleportation between two computer chips for the first time. The team managed to send information from one chip to another instantly without them being physically or electronically connected, in a feat that opens the door for quantum computers and quantum internet.

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