# Rosen and Morse potential

The **Rosen and Morse potential** is given by (Eq. 1 ^{[1]}):

the minimum is located at

as long as .

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The **Rosen and Morse potential** is given by (Eq. 1 ^{[1]}):

- $\Phi (r)=B\tanh(r/d)-C{\mathrm {sech} }^{2}(r/d)$

the minimum is located at

- $r_{\mathrm {min} }=-\tanh ^{-1}(B/2C)$

as long as $|B|<2C$.