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L’Hamiltoniano di un sistema quantistico a due livelli può essere scritto come

$$ \mathcal{H} = - \frac{1} {2}\hbar \omega \left( {\left| 0 \right\rangle \left\langle 0 \right| - \left| 1 \right\rangle \left\langle 1 \right|} \right) $$

dove |0> e |1> sono gli autoket ortonormali appartenenti agli autovalori -ħΩ/2 e +ħΩ/2 rispettivamente. Si considerino l’operatore lineare a = |0><l|ed il suo coniugato hermitiano a†.

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© 2008 Springer-Verlag Italia, Milano

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Angelini, L. (2008). Evoluzione temporale. In: Meccanica quantistica: problemi scelti. UNITEXT(). Springer, Milano. https://doi.org/10.1007/978-88-470-0745-1_5

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