Quantum Physics Essay

7340 words - 29 pages

Quantum mechanics is a fundamental branch of physics which deals with physical phenomena at nanoscopic scales where the action is on the order of the Planck constant. It departs from classical mechanics primarily at the quantum realm of atomic and subatomic length scales. Quantum mechanics provides a mathematical description of much of the dual particle-like and wave-like behavior and interactions of energy and matter. Quantum mechanics provides a substantially useful framework for many features of the modern periodic table of elements including the behavior of atoms during chemical bonding and has played a significant role in the development of many modern technologies. In advanced topics of quantum mechanics, some of these behaviors are macroscopic and emerge at only extreme energies or temperatures . In the context of quantum mechanics, the wave-particle duality of energy and matter and the uncertainty principle provide a unified view of the behavior of photons, electrons, and other atomic-scale objects. The mathematical formulations of quantum mechanics are abstract. A mathematical function, the wavefunction, provides information about the probability amplitude of position, momentum, and other physical properties of a particle. Mathematical manipulations of the wavefunction usually involve bra-ket notation which requires an understanding of complex numbers and linear functionals. The wavefunction formulation treats the particle as a quantum harmonic oscillator, and the mathematics is akin to that describing acoustic resonance. Many of the results of quantum mechanics are not easily visualized in terms of classical mechanics. For instance, in a quantum mechanical model the lowest energy state of a system, the ground state, is non-zero as opposed to a more "traditional" ground state with zero kinetic energy . Instead of a traditional static, unchanging zero energy state, quantum mechanics allows for far more dynamic, chaotic possibilities, according to John Wheeler. The earliest versions of quantum mechanics were formulated in the first decade of the 20th century. About this time, the atomic theory and the corpuscular theory of light first came to be widely accepted as scientific fact; these latter theories can be viewed as quantum theories of matter and electromagnetic radiation, respectively. Early quantum theory was significantly reformulated in the mid-1920s by Werner Heisenberg, Max Born and Pascual Jordan, ; Louis de Broglie and Erwin Schrödinger ; and Wolfgang Pauli and Satyendra Nath Bose . Moreover, the Copenhagen interpretation of Niels Bohr became widely accepted. By 1930, quantum mechanics had been further unified and formalized by the work of David Hilbert, Paul Dirac and John von Neumann with a greater emphasis placed on measurement in quantum mechanics, the statistical nature of our knowledge of reality, and philosophical speculation about the role of the observer. Quantum mechanics has since permeated throughout many...

Find Another Essay On Quantum Physics

The Quantum Computer and the Impact If Made Profitable

1440 words - 6 pages will bring the quantum computer to the populace. While there are several critics, could we theoretically create a quantum computer for $30,000? ( CITATION). This paper examines the current cost of a quantum computer and how it correlates to our world. This paper will also review the physics behind the quantum computer and the history. The quantum computer will be compared to the traditional computer as well as it's advantages and disadvantages that

Quantum Mechanics and its Principals Essay

867 words - 3 pages What is quantum mechanics? Quantum mechanics is the science of things so small that quantum reality has an effect. Quantum means ‘discrete amount or portion’. Max Planck discovered in 1900 that you couldn’t get any smaller than a certain amount of anything. This minimum amount is now called a Planck unit. Niels Bohr, the father of the orthodox ‘Copenhagen Interpretation’ of quantum physics once said, “Anyone who is not shocked by quantum

Quantum Mechanics and Reality

995 words - 4 pages Quantum mechanics is the branch of science that addresses the aspects of reality inconceivable to the human eye. Despite being incorporated daily into our lives, quantum mechanics lacks the prominence of classical physics, biology and chemistry since its presence is not often acknowledged by ordinary people. This belittled branch of science belongs to quantum physics which describes the foundation of all things we know of and essentially

Quantum Computing

2231 words - 9 pages Fury of the Quantum Fist Quantum mechanics will be our most powerful tool in the world of tomorrow. For those of you that did not know this, quantum mechanics is a physics system or theory using the assumption that energy exists in discrete units. It is probably no exaggeration to say that quantum mechanics is the most successful scientific theory in history. This has been a great success, but in spite of the fact the origins of the

Quantum computer

939 words - 4 pages idea of encoding system is lost. • Calculation experiments for new physics theory. Quantum computer can help in solving problems of modern physics. Such as, a vacuum state, a string theory and others. Of course, these are great abilities. Creation of quantum computer must be a major problem in the world of science. Moreover, some types of quantum computer are building. Actually, the small Canadian company D-Wave System demonstrated the first

Key Management for Multicast Groups using Broadcast Encryption and Group Key Agreement

583 words - 3 pages Quantum network is the one of trusted model where confidential data is transferred in a transparent manner based on the principle of Quantum Key Distribution (QKD) which provides a mechanism to exchange secret keys based on a security method that is rooted in the laws of physics [5]. Until now, quantum network is very well known and widely used for today communication due to the advantage of such quantum network rely on QKD for link key

Quantum Computing

1089 words - 5 pages , Quantum computing is based on the ideas and practices of physics, quantum mechanics, computer science, and mathematics. A quantum bit commonly referred to as a qubit can not only be in the classical states of 0 or 1, but can also observe what is known in quantum physics and mechanics is known as superposition; the state of being both 0 and 1 at the exact same time (Deutsch, David, and Ekert). A qubit’s super positioned state is usually set by

Quantum Theory

929 words - 4 pages The Quantum TheoryThe Quantum Theory, also quantum mechanics, is a theory in physics based on using the concept of the quantum unit to describe the dynamic properties of subatomic particles and the interactions of matter and radiation. The foundation was laid by the German physicist Max Planck, who hypothesized in 1900 that energy can be given off or absorbed by matter only in small, discrete units called quanta. Also important to the

What is Quantum Mechanics?

1492 words - 6 pages Quantum mechanics is a form of physics that is used to study very tiny objects like atoms. Many people have heard of quantum mechanics before whether it was from a book or a television show. Automatically people think “nerd” or “geek” which is pretty much correct, but those people themselves have no idea how quantum mechanics improved their lives or even how it works. It may sound difficult, but it is really not that hard to understand. So now

Double-Slit Experiment

1157 words - 5 pages , travelling through the vacuum of space at an astounding rate of 290,980,000 miles per second! Though photons are technically titled as a particle, they do not always behave within the laws and restrictions of a particle; often acting as a wave. This phenomenon is known as particle-wave duality and is quite interesting. One way we can see this behavior is often found in experiments of quantum physics. Quantum physics, and branch of quantum machanics

Einstein on Quantum Mechanics

1194 words - 5 pages energy quantization and wave-particle duality (Rheingold and Levine). The book goes on to explain how this realm of science is basically an extension of physics attempting to derive a mathematical specification of how the entirety of the universe operates and behaves at the subatomic level. Conversely, it also describes how quantum theory also diverges from classical physics in that it stipulates that the only distinction between waves and

Similar Essays

Classical Physics Vs. Quantum Physics Essay

1431 words - 6 pages No other half-century in history has witnessed so revolutionary a transformation in man's view of the nature of the physical universe as the one through which we have just passed. We have seen not only a vast accumulation of new facts but a profound revision of basic ideas and principles.In its simplest form, quantum physics is the study of matter and radiation at an atomic level, where things work very differently from "our" world. A good

Paul Adrien Maurice Dirac, Erwin Schrodinger And Quantum Physics

614 words - 2 pages Both Erwin Schrodinger and Paul Adrien Maurice Dirac were physicists. They separately worked to develop equations that related to a field of physics called quantum mechanics. Together, Schrodinger and Dirac shared the 1933 Nobel Prize for physics. Erwin Schrodinger was born in 1887 in Vienna. He served as a professor of theoretical physics in several German and Swill universities. He also was associated with the Dublin Institute for

Physics Task On Nuclear Quantum Mechanics University Physics Task

3116 words - 13 pages STAGE 2 AGRICULTURAL AND HORTICULTURAL SCIENCE ASSESSMENT TYPE 2: Skills and Applications Tasks Fermentation RATE OF FERMENTATION Abstract The aim of this experiment was to investigate the effect of yeast concentration on rate of fermentation. This was done by adding different level of yeast in suspensions into 20mL of glucose solution that was in a test tube sitting in warm water. The CO? would be collected in the test tube and

Quantum Theory Essay

657 words - 3 pages . Let's have a look into the amazing quantum world. At the moment that Max Plank discovered the light-quanta in 1900, the modern quantum physics had been started. Several years later, Niels Bohr discovered the quantum-leap and it brought out the quantum theory. The quantum theory, creates the totally mystery world, redefining our understanding of the reality. It seems to be a disaster that the classical physics may be totally wrong. No one can