Feynman

223 reputation

bio	website	pathintegral.org/blog
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visits	member for	1 year, 3 months
	seen	Jan 27 at 19:14
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	223 reputation	bio	website	pathintegral.org/blog	visits	member for	1 year, 3 months
16 badges		location			seen	Jan 27 at 19:14

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Feb 15	awarded	Yearling
Jan 23	awarded	Nice Question
Jan 16	comment	Is mass quantized? Could mass not be considered an eigenvalue of the Dirac operator in the Dirac equation?
Jan 16	asked	Crystal momentum and the vector potential
Jan 15	revised	Is there any uncertainty between mass and proper length or time? changed tags
Jan 15	revised	Can path integrals be used to understand entanglement? added some more tags
Jan 15	asked	Can path integrals be used to understand entanglement?
Jan 15	asked	Is there any uncertainty between mass and proper length or time?
Feb 29	revised	Formulation of Transformation optics using a Material Manifold added 24 characters in body
Feb 29	revised	Formulation of Transformation optics using a Material Manifold explanation of the possible use of geometric algebra
Feb 29	awarded	Editor
Feb 29	revised	Formulation of Transformation optics using a Material Manifold explanation of the possible use of geometric algebra
Feb 29	comment	Formulation of Transformation optics using a Material Manifold Well, the latter link is far more applicable to a material manifold. That one is not on geometric algebra per se but on EM propagation in arbitrary materials. They use differential forms extensively, but no mention of geometric algebra. I figured the geometric algebra formulation could--if nothing else--be useful for ease of notation.
Feb 23	awarded	Scholar
Feb 23	accepted	How does Bloch's theorem generalize to a finite sized crystal?
Feb 23	comment	How does Bloch's theorem generalize to a finite sized crystal? Ok then, I guess that's all there is to it. I checked the first answer only because it was more directed to my question (rather than the comment.) I appreciate your answer too and voted it up.
Feb 23	comment	How does Bloch's theorem generalize to a finite sized crystal? I suppose I am mainly interested in what kind of how quasimomentum would be allowed in such a system. Would it vary with position on the lattice?
Feb 22	awarded	Supporter
Feb 21	awarded	Teacher
Feb 20	comment	How does Bloch's theorem generalize to a finite sized crystal? Then at what point does Bloch's theorem stop applying? How many unit cells is "enough" for Bloch's theorem to apply?