Recent content by valanna

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    I What is the relationship between entanglement and entropy in quantum systems?

    Thank you both very much! Would it be right to say that an entangled state, links the probabilities of the spin (sometimes could be another property) of two particles? I think part of the misconception is that sometimes the spin of a single particle in the above state is also sometimes referred...
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    I What is the relationship between entanglement and entropy in quantum systems?

    Thank you very much, I was able to find articles on entropy with that definition, So the change in entropy is ΔS=∫q/T dT and entropy itself is defined as S=kb*lnΩ with Ω being the number of configurations So if entropy is related to the number of possible configurations of a state so I can...
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    I What is the relationship between entanglement and entropy in quantum systems?

    Dictionary definitions of it that I find define it that way but I can understand them being poor sources, could you link me a good source for what entropy really is then?
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    I What is the relationship between entanglement and entropy in quantum systems?

    This is an observation I'm making that seems like it is wrong but I can't figure out why it would be. Entanglement links two states together. For example the spin angular momentum of particles. An entangled state of two particles could be where you know if one particle is measured spin up the...
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    I How do I find this state |j,m=j> to calculate another state?

    Thank you, Sorry I missed that, I've figured out what I need now thank you so much
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    I How do I find this state |j,m=j> to calculate another state?

    I’m confused about how you find the vector |s;s⟩ to use in the general equation |θ,ϕ⟩=exp(−iϕS3) * exp(−iθS2) |s;s⟩ For spin Coherent states (From http://www.scholarpedia.org/article/Coherent_state_(Quantum_mechanics)#4._Spin_Coherent_States Eq 12) Or how you find the vector |j,m=j⟩ to use...
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    I Confusion about initial states and coherent states

    Thank you, Those are what I'm looking at, I suppose I made the mistake in thinking the coherent state for the harmonic oscillator was the same because its equation is a similar format to the one I'm looking at. The main difference is that the state I need to find is represented by |j,j> but I'm...
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    I Confusion about initial states and coherent states

    So the |0> is in Hilbert space? If there were a coherent state that was in a space where j=4, is there a method to find |0>?
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    I Confusion about initial states and coherent states

    I've found online that the coherent state of the harmonic oscillator is |\alpha \rangle = c \sum_{n=0}^\infty \frac{\alpha^n}{\sqrt{n!}} | n\rangle where |n\rangle = \frac{(a^\dagger)^n}{\sqrt{n!}} |0\rangle and |0> is called the initial state. I've some code where I need to have this...
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