Quantum Computers Explained – Limits of Human Technology


Where are the limits of human technology? And can we somehow avoid them? This is where quantum computers become very interesting. 














For most of our history, human technology consisted of our brains, fire, and sharp sticks. 0:06 While fire and sharp sticks became power plants and nuclear weapons, 0:10 the biggest upgrade has happened to our brains. 0:13 Since the 1960's, the power of our brain machines has kept growing exponentially, 0:17 allowing computers to get smaller and more powerful at the same time. 0:21 But this process is about to meet its physical limits. 0:25 Computer parts are approaching the size of an atom. 0:28 To understand why this is a problem, we have to clear up some basics. 0:33 In a Nutshell - By Kurzgesagt 0:39 A computer is made up of very simple components 0:42 doing very simple things. 0:44 Representing data, the means of processing it, and control mechanisms. 0:49 Computer chips contain modules, which contain logic gates, which contain transistors 0:54 A transistor is the simplest form of a data processor in computers, 0:58 basically a switch that can either block, or open the way for information coming through 1:03 This information is made up of bits 1:06 which can be set to either 0 or 1. 1:08 Combinations of several bits are used to represent more complex information. 1:13 Transistors are combined to create logic gates which still do very simple stuff. 1:18 For example, an AND Gate sends an output of 1 if all of its inputs are 1 and a output of 0 otherwise. 1:25 Combinations of logic gates finally form meaningful modules, say, for adding two numbers. 1:31 Once you can add, you can also multiply, 1:33 and once you can multiply, you can basically do anything. 1:37 Since all basic operations are literally simpler than first grade math, 1:41 you can imagine a computer as a group of 7-year-olds answering really basic math questions. 1:46 A large enough bunch of them could compute anything 1:48 from astrophysics to Zelda. 1:51 However, with parts getting tinier and tinier, 1:53 quantum physics are making things tricky. 1:56 In a nutshell, a transistor is just a electric switch. 1:59 Electricity is electrons moving from one place to another. 2:03 So, a switch is a passage that can block electrons from moving in one direction. 2:08 Today, a typical scale for transistors is 14 nanometers 2:12 Which is about 8 time less than the HIV virus' diameter 2:15 and 500 times smaller than a red blood cell. 2:18 As transistors are shrinking to the size of only a few atoms 2:22 Electrons may just transfer themselves to the other side of a blocked passage 2:25 via a process called Quantum Tunneling 2:28 In the quantum realm, physic works quite differently from the predictable way were used to 2:33 and traditional computers just stop making sense. 2:36 We are approaching a real physical barrier for our technological progress. 2:41 To solve this problem, 2:42 scientists are trying to use these unusual quantum properties to their advantage 2:47 by building quantum computers. 2:49 In normal computers, bits are the smallest unit of information. 2:53 Quantum computers use qubits which can also be set to one of two values. 2:58 A qubit can be any two level quantum system 3:00 such as a spin and a magnetic field or a single photon 3:04 0 and 1 are this system's possible states 3:07 like the photons horizontal or vertical polarization 3:10 In the quantum world, the qubit doesn't have to be just one of those 3:14 It can be in any proportions of both states at once 3:17 This is called superposition. 3:19 But as soon as you test its value, say, by sending the photon through a filter 3:24 It has to decide to be either vertically or horizontally polarized 3:29 So as long as it's unobserved, 3:31 The qubit is in a superposition of probabilities for 0 and 1 and you can't predit which it'll be 3:37 But the instant you measure it 3:39 It collapses into one of the definite states. 3:42 Superposition is a game changer. 3:44 For classical bits can be in one of two to the power of four different configurations at a time. 3:50 That's 16 possible combinations at which you can use just one 3:54 For qubits in superposition, however, can be in all of those 16 combinations at once. 4:00 This number grows exponentially with each extra qubit 4:04 20 of them can already store a million values in parallel. 4:08 A really weird and unintuitive property qubits can have is Entanglement, 4:12 a close connection that makes each of the qubits react to a change in the other state instantaneously, 4:18 no matter how far they are apart 4:20 This means when measuring just one entangled qubit, you can directly to use property of it's partner's 4:26 without having to look 4:27 Qubit Manipulation is a mind bender as well 4:31 A normal logic gate gets a simple set of inputs and produces one definite output 4:36 A quantum gate manipulates an input of superpositions, rotates probabilities, 4:41 and produces another superposition as its output. 4:44 So a quantum computer sets up some qubits, applies quantum gates to entangle them and manipulate probabilities 4:51 then finally measures the outcome, collapsing superpositions to an actual sequence of 0s and 1s 4:57 What this means is you get entire lot of calculations that are possible with your setup all done at the same time 5:04 Ultimately you can only measure one of the results and it'll only probably be the one you want, 5:09 So you might have to double check and try again. 5:12 But by cleverly exploiting superposition and entanglement, 5:15 this can be exponentially more efficient than would ever be possible on a normal computer. 5:20 So, while quantum computers will not probably not replace our home computers, 5:25 in some areas, they are vastly superior. 5:28 One of them is database searching. 5:30 To find something in a database, a normal computer may have to test every single one of its entries. 5:35 Quantum computers algorithms need only the square root of that time 5:39 which for large databases, is a huge difference 5:42 The most famous use of quantum computers is ruining IT security 5:46 right now you are browsing email and banking data is being kept secure by an encryption safety system 5:52 in which you give everyone a public key to encode messages only you can decode 5:56 The problem is that this public key can actually be used to calculate your secret private key 6:02 Luckily, doing the necessary math on any normal computer would literally take years of try and error 6:07 But a quantum computer with exponential speed-up could do it in a breeze 6:12 Another really exciting new use is simulations 6:15 Simulations of the quantum world are very intense on resources 6:19 and even for bigger structures such as molecules they often lack accuracy 6:24 So why not simulate quantum physics with actual quantum physics? 6:28 Quantum simulations could provide new insights on proteins that might revolutionize medicine. 6:34 Right now we don't know if quantum computers will be just a specallized tool 6:38 or a big revolution for humanity. 6:40 We have no idea where the limits of technology are 6:43 and there's only one way to find out. 6:46 This video is supported by the Australian Academy of Science 6:50 which promotes and supports excellence in science








The Financial Armageddon Economic Collapse Blog tracks trends and forecasts , futurists , visionaries , free investigative journalists , researchers , Whistelblowers , truthers and many more

No comments:

Post a Comment

“Control oil and you control nations; control food and you control the people.” Henry Kissinger


once a standing army is established, in any country, the people lose their liberty.”
George Mason

“Military men are dumb, stupid animals to be used as pawns for foreign policy.”
Henry Kissinger

“If you are an ordinary person, then you can prepare yourself for war by moving to the countryside and building a farm, but you must take guns with you, as the hordes of starving will be roaming. Also, even though the elite will have their safe havens and specialist shelters, they must be just as careful during the war as the ordinary civilians, because their shelters can still be compromised.”
Henry Kissinger

"We don't let them have ideas. Why would we let them have guns?" Joseph Stalin

The people who cast the votes decide nothing. The people who count the votes decide everything.
Joseph Stalin

Governments keep a lot of secrets from their people . . .
Why aren't the people in return allowed to keep secrets
from the government?

PHILIP ZIMMERMAN, DER SPIEGEL

“Some call it Communism, I call it Judaism.”

Rabbi Stephen Weiss

“Anti-Communism is Anti-Semitism.”
Jewish Voice, July - August 1941

Taxing People is Punishing Success
UNKNOWN

There's the rich, the poor, and the tax payers...also known as the middle class. Robert Kiyosaki

The Tax you pay is The Bill for Staying Stupid

Stefan Molyneux


“The modern banking system manufactures money out of nothing. The process is, perhaps, the most astounding piece of sleight of hand that was ever invented. Banks can in fact inflate, mint and un-mint the modern ledger-entry currency.” Major L L B Angus

The few who understand the system will either be so interested in its profits or so dependent on its favours that there will be no opposition from that class, while on the other hand, the great body of the people mentally incapable of comprehending the tremendous advantage that capital derives from the system will bear its burdens without complaint and perhaps without even suspecting that the system is inimical to their interests.
The Rothschild Bros

"Debts must be collected, bonds and mortgages must be foreclosed as rapidly as possible. When, through a process of law, the common people lose their homes they will become more docile and more easily governed through the influence of the strong arm of government, applied by a central power of wealth under control of leading financiers.

This truth is well known among our principal men now engaged in forming an imperialism of Capital to govern the world.

By dividing the voters through the political party system, we can get them to expend their energies in fighting over questions of no importance. Thus by discreet action we can secure for ourselves what has been so well planned and so successfully accomplished."

USA Banker's Magazine, August 25 1924


Cutting Tax Rates stimulates Economic Growth creates more Profit , more Jobs and therefore The Treasury ends up with more Tax Money
UNKNOWN

Taxation is legalized Theft
UNKNOWN

"The Objective of the Bank is not the control of a conflict , it's the control of the debt that a conflict produces . The real value of a conflict , the true value is in the debt that it creates . You control the debt , you control everything . this is THE VERY ESSENCE OF THE BANKING INDUSTRY , to make us all , whether we be nations or individuals , SLAVES TO DEBT " An UNKNOWN Banker

Patriotism is the last refuge... to which the scoundrel clings .... Steal a little and they throw you in jail ..steal a lot and they make you king ....

Bob Dylan


"Corporations are stealing billions in tax breaks, while the confused, screwed citizenry turn on each other. International corporations have no national allegiance, they care only for profit." Robert Reich


There is NO political answer to a spiritual problem!
Steve Quayle


Po
litical Correctness is a Political Stand Point that does not allow Political Opposition , This is actually The Definition of Dictatorship
Gilad Atzmon

The modern definition of racist is someone who is winning an argument with a liberal
Peter Brimelow


When People lose everything and have nothing left to lose , They Lose It !

GERALD CELENTE

Your Greatest Teacher is Your Last Mistake
DAVID ICKE

The one who Controls the Education System , Controls Perception
UNKNOWN

"The world will not be destroyed by those who do evil, but by those who watch them without doing anything."

Albert Einstein

In The Left Nothing is Right & in The Right nothing is Left
UNKNOWN


No man escapes when freedom fails; The best men rot in filthy jails. And those that cried 'Appease! Appease!' Are hanged by those they tried to please
UNKNOWN

Freedom is not Free
UNKNOWN

Don't Steal The Government Hates The Competition

Ron Paul

"Buy The Rumor , Sell The Fact " Peter Schiff


You can love your Country and not your Government

Jesse Ventura


" The Government Works for ME , I do not answer to them They Answer to ME "
Glenn Beck

"Tyranny will Come to Your Door in a Uniform "
Alex Jones

"The Government is not The Solution to our Problems , The Government is The Problem "

Ronald Reagan


"The price good men pay for indifference to public affairs is to be ruled by evil men." Plato


The world is a tragedy to those that feel, and a comedy to those that think...Beppe Grillo

"The people should not fear the government for it is the government who should fear the people" UNKNOWN

"If You are looking for solutions to the world's problems , look in the Mirror , You Are The Solution , You have the power as a human being on this planet " UNKNOWN

"They don't control us , We empower them " UNKNOWN

"Serial Killers do on a Small Scale What Governments do on a large one..."

Serial Killer Richard Ramirez

There is a Class War going on in America, & unfortunately, my class is winning." Warren Buffet

"When the people fear their government, there is tyranny; when the government fears the people, there is liberty."

Thomas Jefferson

"College is a waste of Money"
Albert Einstein

Schools manufacture people who think that they're smart but they're not.
Robert Kiyosaki

Education is what you learn after you leave School
Robert Kiyosaki

" ‏Schools were designed to create employees for the big corporations."
Robert Kiyosaki


"If a law is unjust, a man is not only right to disobey, he is obligated to do so" Thomas Jefferson

Dissent is the highest form of patriotism
Thomas Jefferson

“True education makes you feel stupid. It makes you realize you have so much more to learn.” Robert Kiyosaki


"One day your life will flash before your eyes. Make sure it's worth watching." - Gerard Way

"Aspire not to have More but to be More "
UNKNOWN

The losers in life think they have all the answers. They can’t learn because they’re too busy telling everyone what they know.
Robert T. Kiyosaki ‏

"Failure is simply the opportunity to begin again. -This time more intelligently." Henry Ford

What You Own Owns You
UNKNOWN

If you expect the government to solve your problems, you have a problem. Robert Kiyosaki

"Those who give up their liberty for more security neither deserve liberty nor security." Benjamin Franklin

"None are more hopelessly enslaved than those who falsely believe they are free.” -
Johann Wolfgang von Goethe

"Always trust someone who is seeking the truth , never trust someone who found it" Jordan Maxwell

Be The Change you want to see in The World
UNKNOWN

Failure inspires winners but defeats losers
Robert Kiyosaki ‏

“If you are planning for a year, sow rice; if you are planning for a decade, plant trees; if you are planning for a lifetime, educate people” A Chinese Proverb

"First they came for the Socialists, and I did not speak out--
Because I was not a Socialist.

Then they came for the Trade Unionists, and I did not speak out--
Because I was not a Trade Unionist.
Then they came for the Jews, and I did not speak out--
Because I was not a Jew.
Then they came for me--and there was no one left to speak for me." UNKNOWN


Let me tell you why you're here. You're here because you know something. What you know you can't explain, but you feel it. You've felt it your entire life, that there's something wrong with the world. You don't know what it is, but it's there, like a splinter in your mind, driving you mad. It is this feeling that has brought you to me. Do you know what I'm talking about?


Morpheus The Matrix 1999