Category Archive: Waves & Wave Mechanics

Aug 16

Submarine Landslides and Tsunamis (Nato Science Series: IV:)

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In particular, it is the separation of two adjacent peaks or troughs. Hence a red displacement, above the line, over of a blue displacement (of equal magnitude) which is below the line, will cancel out. These kinds of phenomena are so widespread that he suggests asking students to search for examples of these phenomena in Google Earth as a way of teaching them about waves. The foundations were being laid for the second branch of quantum physics—quantum field theory. One naturally links the uncertainty principle with the probabilistic nature of quantum mechanics.

Aug 16

Music and Sound (Science World)

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As the input frequency approaches the resonant frequency, amplitude approaches infinity. Nobel Laureates and Twentieth-century Physics. Louis de Broglie proposed that Planck’s energy-frequency relationship be extended to all kinds of particles. A transverse wave is such that the displacements of the medium are perpendicular (transverse) to the direction of travel of the wave along the medium. So in a more abstract definition, the states of an isolated classical system are the positions The above definition implies that the state of a system can only change when an interaction with another system occurs.

Aug 16

Bivectors and Waves in Mechanics and Optics (Applied

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We now study wave packets in two dimensions by asking what the superposition of two plane sine waves looks like. The most obvious example of this is the passage of light through a homogeneous medium in which the speed of light doesn’t change with position. Thus, the path difference between the beams from the two slits is L2 −L1 = d sin θ. Bridging the gap to quantum world BBC - June 3, 2009 Scientists have "entangled" the motions of pairs of atoms for the first time. The values for the data points are as follows: There are three things that need to be noted in interpreting Figure 17.

Aug 16

Shock-Wave Solutions Of The Einstein Equations With Perfect

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This is sufficient to produce Planck's formula for the radiation in a cavity surrounded by a huge heat bath. PHYS W1601x Physics, I: Mechanics and Relativity 3.5 pts. So the wave functions go to 0 and infinity. In quantum physics, a wave/particle has wave characteristics and particle characteristics, and an electron is equally “real” when it is traveling toward the wall (when in quantum theory its behavior is best represented as a wave) and when it hits the wall (when it's best represented as a particle or a collapsed-wave).

Aug 16

The harmonic oscillator in modern physics;: From atoms to

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Sound wave is a mechanical wave that requires a medium for its propagation. Note that the magnitude of the cross product is zero when the vectors are parallel or anti-parallel, and maximum when they are perpendicular. A sound wave traveling through air is a classic example of a longitudinal wave. Once one has measured the system, one knows its current state; and this prevents it from being in one of its other states−−it has apparently decohered from them without prospects of future strong quantum interference. [9] [10] [11] This means that the type of measurement one performs on the system affects the end-state of the system.

Aug 16

Supersymmetry, Superfields and Supergravity: An

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This had been discovered experimentally; this is the source of the famous line spectrum that atoms exhibit and that accounts for why neon lights are red whereas sodium streetlights have a yellow tinge. He is dedicated to teaching and has published two texts: Principles of Quantum Mechanics and Basic Training in Mathematics: A Fitness Program for Science Students. One feature of waves is that they superpose. This would seem to contradict Fermat’s principle, in that only the minimum (or maximum) time trajectories should occur.

Aug 15

Optical Multi-Bound Solitons (Optics and Photonics)

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At the macroscopic scale we are used to two broad types of phenomena: waves and particles. Obviously, we cannot really predict the position of the drops unless we know the motion of the water absolutely exactly. And if you could plot it, you could say, here's a maximum, here's a minimum. The fact that we can represent nature this way mathematically gives the wave function special meaning to us as creatures who are interested in predicting future events.

Aug 15

Complex Phenomena in Nanoscale Systems (NATO Science for

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We call it $\Delta x$ because that is the uncertainty in the location of the particle. The term inflation is used to represent a class of models that each have different attributes and effects on the universe. And you get numbers and you already know that the ground state energy smaller than some number. They hope to see results within a decade. “What's great about all these kinds of experiments is that we'll be subjecting quantum theory to high-precision tests, where it's never been tested before,” says Maroney.

Aug 15

Nonlinear Physics: Proceedings of the International

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2 = 4 sin2 (kx). (9.18) Which of the two possible values of the momentum the particle takes on is unknowable, just as it is impossible in principle to know which slit a particle passes through in two slit interference. Incomplete mathematical notation for frequency is no longer required to compensate for the deficiencies of the incomplete quantum formula. What is the group velocity in this case? 5.

Aug 15

Focus on Soliton Research

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Quantum Physics (Quantum Theory / Wave Mechanics) - From 1900 to 1930 there was a revolution in the foundations of our understanding of light and matter interactions. The significance of these quantities to classical mechanics will emerge bit ¯ by bit. The value of EB, called the binding energy or work function, is different for different metals. Assuming that you are holding the string tightly, this reaction will be manifested in the form of an inverted wave, or one that is upside-down in relation to the original pulse.

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