Essay PreviewMore ↓
The beginning of quantum computers came at the turn of the twentieth century when there was a scientific revolution and quantum mechanics was born. Quantum computers are based off of the mathematical framework of quantum mechanics and have a multitude of uses that are applicable in today’s world and the futures. Quantum computers have the possibility of processing numerous complicated efficient algorithms at one time by harnessing the power of the atom. Current quantum computers have the ability to be used in today’s world, however, their true power has not yet been harnessed because several complications with the use of atoms.
The modern theory of quantum mechanics was born in the 1920’s. Quantum mechanics is a mathematical framework or set of rules for the construction of physical theories and is the foundation of the quantum computer. It is an indispensable part of science and has been applied to the structure of the atom, nuclear fusion in stars, superconductors, the structure of DNA, and the elementary particles of nature (Nielsen 2).
Since the 1970’s developments in techniques for controlling single quantum systems have occurred. For example there have been methods developed for trapping a single atom in an ‘atom trap’, which isolates the atom from the rest of the world and allows scientists to probe many different aspects of its behavior with incredible precision. These methods help explore untouched regimes of nature in the hope of discovering new and unexpected phenomena. The ability to control single quantum systems is essential to harnessing the power of quantum mechanics for applications to quantum computation and quantum information (Nielsen 3).
In 1982 Richard Feynmen considered simulation of quantum mechanical objects by other quantum systems. In 1985 David Deutsch wrote a crucial theoretical paper in which he described a universal quantum computer which uncovered the unusual power of quantum computation. In 1994 Peter Shore devised the first quantum algorithm that could perform efficient factorization which underpins the security of all encrypted information (QUBIT).
The discovery of quantum mechanics was revolutionary because it is counter-intuitive to classical physics. For example, if person A is standing on a train going twenty miles per hour with a flashlight pointed straight ahead and person B is stationary on the ground with a flashlight pointing the same direction as person A, one would think that the light coming out of the flashlight of person A is twenty miles per hour faster than the light coming out of the flashlight being held by person B.
How to Cite this Page
"Quantum Computers." 123HelpMe.com. 01 Apr 2020
Need Writing Help?
Get feedback on grammar, clarity, concision and logic instantly.Check your paper »
- Sophistication has advanced as people learnt new ways of developing various physical resources such as materials, forces and energies. The history of computer technology has involved an order of changes of physical understanding, from gears and relays to valves to transistors and integrated circuits and so on. Today's advanced lithographic methods can squeeze portion of micron wide logic gates and buses onto the surface of silicon chips. Soon they will carry even smaller parts and eventually get to a point where logic gates are so minute that they are built out of a handful of atoms.... [tags: Technology ]
1413 words (4 pages)
- introduction A quantum computer is one which exploits quantum-mechanical interactions in order to function; this behavior, found in nature, possesses incredible potential to manipulate data in ways unattainable by machines today. The harnessing and organization of this power, however, poses no small difficulty to those who quest after it. Subsequently, the concept of quantum computing, birthed in the early 80's by physicist Richard Feynman, has existed largely in the realm of theory. Miraculous algorithms which potentially would take a billionth of the time required for classical computers to perform certain mathematical feats, and are implementable only on quantum computers, as such ha... [tags: quantum physics computer]
1351 words (3.9 pages)
- Missing figures With today's technology we are able to squeeze millions of micron wide logic gates and wires onto the surface of silicon chips. It is only a matter of time until we come to a point at which the gates themselves will be made up of a mere handful of atoms. At this scale, matter obeys the rules of quantum mechanics. If computers are to become smaller and more powerful in the future, quantum technology must replace or reinforce what we have today. Quantum computers aren't limited by the binary nature of the classical physical world.... [tags: quantum physics computer]
924 words (2.6 pages)
- Quantum Computers The beginning of quantum computers came at the turn of the twentieth century when there was a scientific revolution and quantum mechanics was born. Quantum computers are based off of the mathematical framework of quantum mechanics and have a multitude of uses that are applicable in today’s world and the futures. Quantum computers have the possibility of processing numerous complicated efficient algorithms at one time by harnessing the power of the atom. Current quantum computers have the ability to be used in today’s world, however, their true power has not yet been harnessed because several complications with the use of atoms.... [tags: Mathematics Technology Essays]
1041 words (3 pages)
- Innovation is the breakthrough to the future. There is a enormous amount of information us humans do not know. How can we solve these unknown answers. The biggest solution is, quantum computing. This is how quantum computers work, how they are made, how a person can program a quantum computer, and how it will change our future as we know it. How a Quantum Computer Works: Old School vs. New School The first conventional computers that were introduced were these big towers of switches, transistors, and buttons.... [tags: Innovation, Technology, Computers]
1272 words (3.6 pages)
- In the world of subatomic particles, the rules that normally apply to objects that are visible by the human eye are totally disregarded. Subatomic particles behavior can be attempted to be explained by a term called quantum mechanics. Quantum mechanics gives the probability of where a particle will be located at, such as point A or point B. It describes atoms or particles, really anything at that level or smaller in a similar way in which relativity describes the laws of how much larger objects behave.... [tags: Quantum mechanics, Electron, Photon, Atom]
1150 words (3.3 pages)
- Fundamental Differences of Quantum Computers In the standard architecture of computer storage, values are arranged as a series of bits, each of which is either true or false(0 or 1). This fundamental restriction of two states is the most basic difference when working with quantum states. Rather than allowing just the two singles states, a superposition of the two states is also possible, forming a state that is neither 0 nor 1, but something in between with a probability of either state. Further, in the standard organization, it is possible to attach various bits together to force correlations between their values.... [tags: Physics Computers Science]
1123 words (3.2 pages)
- The Quantum Computer and the Impact If Made Profitable The first all around computer was the ENIAC that was created 1940's. This computer was basically calculator, capable of addition, subtraction, multiplying, division, sign differentiation, and square root extraction. Computers since then have continually been getting more compact while improving in memory, RAM, speed and user friendliness. The modern computer now has transistors the size of eleven atoms. Because of such minuscule scales that computers now use, computers have now reached a theoretical speed bump in proficiency.... [tags: modern computer, eniac, bits, software]
1196 words (3.4 pages)
- Quantum Teleportation is one of the newest areas of study in the field of quantum physics. It is the stuff of science fiction, which is fast becoming reality, where solid objects can be moved vast distances instantly. It has been the subject of books and movies for years but it wasn’t until recently that physicists at IBM’s laboratories made it a reality. The ideas that formed the basis of these experiments came about from previous research by scientists such as Albert Einstein and Heisenberg. This essay will explore the research done on this subject, the theories behind it, and the possible applications.... [tags: quantum physics teleport]
782 words (2.2 pages)
- Quantum Cumputers By the strange laws of quantum mechanics, Folger, a senior editor at Discover, notes, an electron, proton, or other subatomic particle is "in more than one place at a time," because individual particles behave like waves, these different places are different states that an atom can exist in simultaneously. Ten years ago, Folger writes, David Deutsch, a physicist at Oxford University, argued that it may be possible to build an extremely powerful computer based on this peculiar reality.... [tags: Essays Papers]
1412 words (4 pages)
Coherent superposition is an area of quantum mechanics which is the foundation for quantum computers. Normal computers today function with of binary code held in bits. Each bit can only hold zero or one. However with coherent superposition a qubit can hold both zero and one at the same time (QUBIT). This allows for an incredible speed difference between the two and extraordinary difference in the processing of complicated algorithms.
An 8-bit digital computer can exist in only one of 256 states at a time while an eight bit quantum computer can exist in all 256 states at a time. Theoretically it can also work on 256 calculations at once (quantum parallelism). Each of the 256 numbers in an 8-bit quantum computer has an equal probability of being measured so that a quantum processor functions as a random number generator. A classical digital computer would have to operate on each number from 0 to 255 while quantum computers require only one pass through the "processor", which radically reduces calculation time (QUBIT).
Two problems make the construction of new quantum algorithms a challenging problem for the future. The first problem is that our human intuition is rooted in the classical world. If this intuition is used to create algorithms, these algorithmic ideas will be classical ideas. The second is that people may create classical algorithms because some of these algorithms have comparable performance characteristic, however, algorithms that make use of truly quantum aspects of quantum mechanics need to be found because then a quantum computer would be functioning to its full ability (Nielsen 7).
Another problem with quantum computers is that called decoherence. A quantum computer cannot be more than a few bits in size otherwise useful information will dissipate into the environment. There are no systems that can prevent decoherence yet, consequently quantum computers are currently limited to a few bits of information. Some physicists believe that quantum computers will never get very large because they believe that decoherence will never be reduced to the point where more than a few quantum computational steps can be performed. However, recently a five bit quantum computer has been made. (QUBIT).
One of the major applications of quantum computers in the future will be to perform simulations of quantum mechanical systems too difficult to simulate on a classical computer (Nielsen 7). The advantage of quantum computers is that they can advance of beyond the point where silicon chips cannot advance anymore. Another application of quantum computers deals with cryptology. Modern cryptology is mostly based off of factorization, and the idea that factoring large numbers is near impossible without another number to factor it with. Quantum computers can factor large numbers in a short amount of time, whereas modern computers would take years to do the same (Erkert). Therefore quantum computers are extremely effective with code breaking and code making.
Quantum computers could revolutionize our world. They apply to almost all sciences and businesses. Cryptography could be revolutionized as well. However this is a double-edged sword because with an increase in factorization efficiency, it would be easier to crack these codes, thus threatening our economy and national security. The creation of a fully functional and optimized quantum computer could create problems equivalent to that of human cloning.
Erkert, Artur The Physics of Quantum Information. Germany: BertelsmannSpringer 2000
Nielsen, Michael A. & Isaac L. Chuang Quantum Computation and Quantum Information. Cambridge: University Press 2000
QUBIT. A Short Introduction to Quantum Computation. www.qubit.org/intros/comp/comp.html 1996