Atomic and Molecular Physics for Physicists Ben-Gurion University of the Negev
... The wave packet has a finite width and can therefore be used to describe particles. How do we make wave packets from waves? We used many frequencies! Ψ(x)=∫dk Ψ(k) eikx ...
... The wave packet has a finite width and can therefore be used to describe particles. How do we make wave packets from waves? We used many frequencies! Ψ(x)=∫dk Ψ(k) eikx ...
Free Fields, Harmonic Oscillators, and Identical Bosons
... this name is misleading: there is no new quantization, just the same old quantum mechanics re-written in a new language. In this section, I will develop the second quantization formalism for the ordinary non-relativistic particles (for example, helium atoms), although it works in the same way for al ...
... this name is misleading: there is no new quantization, just the same old quantum mechanics re-written in a new language. In this section, I will develop the second quantization formalism for the ordinary non-relativistic particles (for example, helium atoms), although it works in the same way for al ...
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... Ψ is specified by the quantum numbers n & m There are as many states as there are possible n,m combinations (N.B. n & m are positive) Two distinct wave functions are DEGENERATE if they have the same energy. e.g. the states 1,3 and 3,1 are degenerate if a = b If a/b is irrational there are no deg ...
... Ψ is specified by the quantum numbers n & m There are as many states as there are possible n,m combinations (N.B. n & m are positive) Two distinct wave functions are DEGENERATE if they have the same energy. e.g. the states 1,3 and 3,1 are degenerate if a = b If a/b is irrational there are no deg ...
+1/2
... The "strong nuclear force" is an exchange force mediated by (mostly) pi-mesons:- p+ (u d ), p- (u d), p0 ( mix of u u and d d ) The "strong nuclear force" is like the inter-molecular Van derWaals force, which is the result of the adding the electromagnetic forces, from the component electrons and nu ...
... The "strong nuclear force" is an exchange force mediated by (mostly) pi-mesons:- p+ (u d ), p- (u d), p0 ( mix of u u and d d ) The "strong nuclear force" is like the inter-molecular Van derWaals force, which is the result of the adding the electromagnetic forces, from the component electrons and nu ...
Sonication
... sound wave is a measure of how often the particles of a substance vibrate (how quickly you transition from the ‘top’ feeling to the ‘bottom’ feeling of a roller coaster). The sound waves used in sonication are usually ultrasound waves with frequencies above what you can hear (above 20 kHz that is 20 ...
... sound wave is a measure of how often the particles of a substance vibrate (how quickly you transition from the ‘top’ feeling to the ‘bottom’ feeling of a roller coaster). The sound waves used in sonication are usually ultrasound waves with frequencies above what you can hear (above 20 kHz that is 20 ...
Chapter_9a
... The ____________ of a system of particles (combined mass M) moves like one equivalent particle of mass M would move under the influence of an external force. ...
... The ____________ of a system of particles (combined mass M) moves like one equivalent particle of mass M would move under the influence of an external force. ...