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Quantum Mechanics

            
            
            
            
            
            
            
             ?Anyone who is not shocked by the quantum theory has not understood it? - Niels Bohr.
             It has been nearly a century since Max Planck proposed that electromagnetic radiation comes in tidy bundles of energy called quanta. Building on this seemingly fragile supposition, scientists erected what is by far the most successful theory in the history. In addition to yielding theories for all the fundamental forces of nature (except gravity), quantum mechanics has accounted for such disparate phenomena as the shining of stars and the order of the periodic table. From it have sprung technologies ranging from nuclear reactors to lasers.
             Quantum mechanics is a theory which tries to describe, and predict the behavior of physical systems. The theory was originally designed to make predictions about the behavior of sub-microscopic systems, like atoms and electrons, but since even large-scale systems are composed of atoms, quantum mechanics necessarily comprises a fundamental physical theory--a theory which attempts (at least in principle) to offer as complete an account as can be had of the nature and behavior of physical systems. Herein I try to briefly investigate what are the presumptions of an essentially scientific theory and how does the Quantum Theory fit into them and what are the glitches therein.
             Science implies knowledge collected by following certain rules, and presented in a certain way. Scientists believe in the existence of an external reality. Scientists therefore look for external proof; they study those aspects of knowledge where there can be serious agreement. And that knowledge they group under laws, which are invariable relations and regularities. A law is an invariable relationship universally accepted in the relevant scientific community. A scientific theory is more open to doubt and refutation as against hypothesis which is tentative. .
             Laws do not provide explanations; they simple state the relationship between the relevant variables.


Essays Related to Quantum Mechanics

1. Quantum Mechanics

... true, the electrons of an atom would spiral into the nucleus almost immediately. This is obviously incorrect because if that were true it would make existence impossible. Quantum mechanics state that every electron exists on a discrete energy level. This can be proven by using a light bulb with multiple energy levels. If you switch from on energy level to another, ... wrong because if electrons exist on single energy levels then it is impossible that they could crash into the nucleus after so short a time. The most important part of quantum mechanics is that particles do not have exact...

  • Word Count: 579
  • Approx Pages: 2
  • Grade Level: Undergraduate

2. The Quantum and the Environment

... one can just let the system evolve, and allow the interaction between the system and the environment as it evolves to prepare the state. Another advantage of dissipative quantum state preparation and dissipative quantum computation is that for particular forms of these processes, no matter what the initial form of the system may be, the interaction between the system and the environment ... with the cook only having to check on the chicken after the preset time for cooking is up. In sum, open quantum systems are of great interest in quantum mechanics. First of all, this is because they a...

  • Word Count: 1550
  • Approx Pages: 6
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3. Werner Heisenberg and the Heisenberg Uncertainty Principle

... a leader of nuclear physics and elementary particle research. He is best known for his uncertainty principle, a component of the so-called Copenhagen interpretation of the meaning, and uses of quantum mechanics. Through his successful life, he lived through two lost World Wars, Soviet Revolution, military occupation, two republics, political unrest, and Hitler's Third Reich. He was not a Nazi, ... complementary principle and Born's statistical interpretation of SchrÖdinger's wave function. The Copenhagen Interpretation was an explanation of the uses and limitations of the mathematical ap...

  • Word Count: 4391
  • Approx Pages: 18
  • Grade Level: Undergraduate

4. Werner Heisenberg and the Heisenberg Uncertainty Principle 2

... a leader of nuclear physics and elementary particle research. He is best known for his uncertainty principle, a component of the so-called Copenhagen interpretation of the meaning, and uses of quantum mechanics. Through his successful life, he lived through two lost World Wars, Soviet Revolution, military occupation, two republics, political unrest, and Hitler's Third Reich. He was not a Nazi, ... complementary principle and Born's statistical interpretation of SchrÖdinger's wave function. The Copenhagen Interpretation was an explanation of the uses and limitations of the mathematical ap...

  • Word Count: 4427
  • Approx Pages: 18
  • Grade Level: Undergraduate

5. wernerheisenburg

... a leader of nuclear physics and elementary particle research. He is best known for his uncertainty principle, a component of the so-called Copenhagen interpretation of the meaning, and uses of quantum mechanics. Through his successful life, he lived through two lost World Wars, Soviet Revolution, military occupation, two republics, political unrest, and Hitler's Third Reich. He was not a Nazi, ... complementary principle and Born's statistical interpretation of SchrÖdinger's wave function. The Copenhagen Interpretation was an explanation of the uses and limitations of the mathematical ap...

  • Word Count: 4218
  • Approx Pages: 17
  • Grade Level: High School

6. Niels Bohr

... Copenhagen, Bohr attracted most of the best theoretical physicists of the day for long and short visits. He provided so much of the stimulus for the development of ideas in quantum mechanics that the standard interpretation of quantum mechanics, which was developed by Bohr and others in the 1920s, became known as the "Copenhagen interpretation." This interpretation became the accepted explanation of ... quantum mechanics, and it was not seriously challenged until the 1980s and the 1990s. In 1922, Bohr received the Nobel Prize in physics for his brilliant work. Meanwhile, he had married ...

  • Word Count: 1722
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7. Scientific Contributions of Niels Bohr

Niels Bohr was one of the greatest scientists of the 20th century. He created a model of atomic structure and established the foundations of quantum mechanics for which he received the Nobel Prize on December 10, 1922. In this research paper, I am going to write about the background of Niels Bohr, analyze his ground-breaking contributions, ... moved back to Copenhagen University and became the head of Institute for Theoretical Physics department. This Institute was named after Bohr, and the department became a world leading center of quantum mechanics. n the 1920's, Niels Bohr first met Albert...

  • Word Count: 1021
  • Approx Pages: 4

8. Black Holes 10

... correspond to anything that we know of in the real world. White holes, even if they were to arise, would immediately be transformed into black holes. What are the quantum mechanics of black holes? Quantum mechanics implies that the whole of space is filled with pairs of "virtual" particles and antiparticles that are 5 constantly materializing in pairs, separating, and then coming together again and ... at which the particle-antiparticle pair originally materialized, it is scattered by the gravitational field so that it travels forward in time. Quantum mechanics therefore allows a particl...

  • Word Count: 3023
  • Approx Pages: 12
  • Grade Level: High School

9. Modern physics in the face of eastern mysticism

... are strikingly similar to the philosophical and religious traditions of the Eastern mystics. In order to understand the prominent parallels between Eastern mysticism and modern physics, the Quantum theory will be described first. Quantum mechanics is the study of the motion of quantities or quanta which represent the bits and pieces of nature. It predicts probabilities based on experiments conducted in the subatomic ... setting, where the probabilities are impossible to visualize. Quantum theory believes that we have limited knowledge of future phenomena and that is why one cannot know ...

  • Word Count: 2014
  • Approx Pages: 8
  • Has Bibliography
  • Grade Level: Undergraduate

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