Substitute the two-magnon ansatz into the Schrdinger equation for the Heisenberg spin (1 / 2) spin chain,

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Substitute the two-magnon ansatz into the Schrödinger equation for the Heisenberg spin $1 / 2$ spin chain, and find that the energy of the two-magnon state is just the sum of the energies of the single magnons, and that

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Quantum Mechanics A Graduate Course

ISBN: 9781108838733

1st Edition

Authors: Horatiu Nastase

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Question Posted: Mar 28, 2024 04:01 AM

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Substitute the two-magnon ansatz into the Schrdinger equation for the Heisenberg spin (1 / 2) spin chain,

Question:

(pi) S(P1, P2)= (P1) (p2)+i (p2)-i' (p) = P (45.99)

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Quantum Mechanics A Graduate Course

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