Nanomechanics is barely mechanical quantummechanics: Difference between revisions
symbolic for linear |
symbolic math roughly finished |
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= Math = | |||
Let us define "quantumness" as the ration of the energy quantisation (the minimum allowed energy steps) to the average thermal energy in a single degree of freedom: <br> | |||
Quantumness: <math> Q = \frac{\Delta E}{E_T} </math> <br> | |||
First we'll need the thermal energy: <br> | |||
Equipartitioning: <math> E_T = \frac{1}{2}k_BT \quad</math> <br> | |||
The size of the energy quanta depends on the system under consideration. | |||
== Reciprocative linear motion == | == Reciprocative linear motion == | ||
The uncertainty relation: <math> \Delta x \Delta p \geq h \quad</math> | The uncertainty relation: <math> \Delta x \Delta p \geq h \quad</math> | ||
Newton: <math> \Delta E = \frac{\Delta p^2}{2m} \quad | Newton: <math> \Delta E = \frac{\Delta p^2}{2m} \quad</math> <br> | ||
Quantumness: <math> Q = \frac{h^2}{k_B} \frac{1}{m \Delta x^2 T} </math> | |||
Quantumness: <math> Q = \frac{h^2}{k_B} \frac{1}{m \Delta x^2 T} </math | |||
== Reciprocative circular motion == | == Reciprocative circular motion == | ||
The uncertainty relation: <math> \alpha \Delta L \geq h \quad</math> | |||
Newton: <math> \Delta E = \frac{\Delta L^2}{2I} \quad</math> <br> | |||
Quantumness: <math> Q = \frac{h^2}{k_B} \frac{1}{I \alpha^2 T} </math> | |||
= Values = | |||
... | |||
= Discussion = | |||
... | |||
Revision as of 18:59, 6 February 2016
Math
Let us define "quantumness" as the ration of the energy quantisation (the minimum allowed energy steps) to the average thermal energy in a single degree of freedom:
Quantumness: <math> Q = \frac{\Delta E}{E_T} </math>
First we'll need the thermal energy:
Equipartitioning: <math> E_T = \frac{1}{2}k_BT \quad</math>
The size of the energy quanta depends on the system under consideration.
Reciprocative linear motion
The uncertainty relation: <math> \Delta x \Delta p \geq h \quad</math>
Newton: <math> \Delta E = \frac{\Delta p^2}{2m} \quad</math>
Quantumness: <math> Q = \frac{h^2}{k_B} \frac{1}{m \Delta x^2 T} </math>
Reciprocative circular motion
The uncertainty relation: <math> \alpha \Delta L \geq h \quad</math>
Newton: <math> \Delta E = \frac{\Delta L^2}{2I} \quad</math>
Quantumness: <math> Q = \frac{h^2}{k_B} \frac{1}{I \alpha^2 T} </math>
Values
...
Discussion
...