![]() |
||||
| Q-19 | ||||
| Home > Q-19 | Sitemap | |||
Next Page Previous Page Home |
||||
| �£Top of This Page | ||||
| �£Top of This Page | www�DGrammaticalPhysics�Dac | Siteowner | |||
�ySEOtext�z0. General Formulation,Notice that if �Ý0qi(t)=Vi(q*(t),p*(t)) then:I(q)=�çdt[pi(t)�Ý0qi(t)-H(q*(t),p*(t))]=0.Then we know the equations before �e�Ì�f mean vanishing of variation of a functional which is connected to the action by:�Ý0qi(t)=Vi(q*(t),p*(t)).(v)Poisson bracket,Poisson bracket {}PB is defined as a mapping which maps an element of (R(Rn,Rn),R(Rn,Rn)) to an element of R(Rn,Rn) as follows.{F,G}PB(x,y)=�ÝF(x,y)/�Ýyi�ÝG(x,y)/�Ýxi-�ÝF(x,y)/�Ýxi�ÝG(x,y)/�Ýyi,Canonical equations can be written in terms of Poisson bracket as follows.(d/dt)F(q*(t),p*(t))={H,F}PB(q*(t),p*(t)),To know this equation contains the original canonical equations, we have only to consider the special cases:F=Qi,Pi where Qi,Pi�¸R(Rn,Rn) are defined by the equations:Qi(x,y)=xi,Pi(x,y)=yi(i=1,2,�E�E�E,n).The Poisson bracket between Qj and Pk is:{Qj,Pk}PB(x,y)=-ƒÂjk.(vi)Canonical Transformations,Prove that conserved quantities in Noether's theorem play a role of generators in canonical transformations.(vii)Treatment of Complex Variables(n=2) |
||||
| (C) Yuuichi Uda. All rights reserved. | ||||