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Find the ground state energy using the variational principle for the given Hamiltonian
h? d?
– y8(y). Use the trial wave function ø(y)= De¯®´ with a as the variational
=H
2m dy
+00
1
parameter. Hint: y"ea dx = (2a)™-12 r| m+
–my
(а)
2h?
-2my?
(b)
2
-my
(c)
(d)
my?
Answer
A
O B
D

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