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Introductory Physics Homework Help
Bra-Ket Notation, Wave Equation, Particle States
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[QUOTE="ShayanJ, post: 5097323, member: 160907"] The condition on a is ## |a|^2=a a^*=1 ## which is a circle in the complex plane. So there are an infinite number of solutions all equally valid. Two of them are 1 and 1/i. Actually ## \langle \psi |= \frac{1}{\sqrt 3} \langle U |-\frac{a\sqrt 2}{\sqrt 3}i\langle D |##. You should write up and down states in terms of right and left states and then substitute in ## |\psi\rangle ##. Its usually the case that right and left states are defined in terms of up and down states. So you should only solve two simultaneous algebraic equations to invert the definitions. All other answers seem fine to me(except g and h which should change according to f). [/QUOTE]
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Introductory Physics Homework Help
Bra-Ket Notation, Wave Equation, Particle States
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