What is Quantum Supremacy? - Google Said they have achieved it!
Well, what for us?
By Techno Trace - March 04, 2021 - In Blog, Computers
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It kept evolving and nowadays we are carrying more computing power on our hands than was available in those early versions.
Okay, I got diverted. My point was the standard computers use so-called bits or you can call them binary digits which can be either 1(on) or 0(off) at a time.
computers work on a series of 0’s and 1’s; like A is termed as 01000001 by your computer.
What's so different?
A Quantum Computer works on qubits (quantum bits).
Quantum bits have a different phenomenon called the superposition of the quantum realm.
That sounds scary, right? But it literally means that a quantum bit can be both 0 and 1 at the same time which is impossible for our general or even the supercomputers out there.
Qubits are also associated with the entanglement property of the quantum realm, which means two can qubits share information even not being present at the same place. They can share information by even being present are two far corners of the galaxy.
That’s what makes them fast when working together. A classical computer can run one calculation at a time but a computer that utilizes quantum effects could run through several calculations simultaneously.
It’s said that –
At 300 qubits you can encode more information than all of the atoms in the universe
Researchers at Google claim their quantum computer has solved a problem that would take even the very best conventional machine thousands of years to crack.
The milestone, known as quantum supremacy, tells us about the unimaginable things we can achieve with these devices that exploit the strange properties of quantum physics to speed up certain calculations.
A paper titled Quantum Supremacy using a Programmable Superconducting Processor from Google was posted on NASA’s website in September and taken down immediately but the copies spread across and discussions were made since then.
Basically, the Quantum Computer named “Sycamore” demonstrates that a quantum processor consisting of 54 superconducting quantum bits, or qubits, was able to perform a random sampling calculation in 200 seconds, and from measurements, an experiment, it was determined that it would take the world’s fastest supercomputer 10,000 years to produce similar output.
Hell, it blew up my mind the first time I heard it. Wholly 10,000 years for the Supercomputer.
Although one of the qubits wasn’t working and had to be turned off.
The Sycamore uses only 53 physical qubits, which was developed after the 72 physical qubit computers turned out too difficult to control. Scaling quantum computers is not that easy, adding more qubits makes the system more unstable.
A quote from the published paper reads as -
To our knowledge, this experiment marks the first computation that can only be performed on a quantum processor.
Google’s not the only player in quantum computing. IBM has also proposed its 20-bit quantum computer and other advanced countries like china, japan has already started looking into vast applications of this quantum computing.
We are looking at the most advanced evolutions of our time. The exponential growth in technologies may bring an unbelievable future or worse an unliveable one.
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