As @b.gates.you.know.what mentions, you can use ToRadicalsToRadicals
Eigenvalues[H] // ToRadicals
but the resultant expression is not so easy to handle. Even after trying to simplify it under the condition youryou offer, it helps little:
As @b.gates.you.know.what mentions, you can use ToRadicals
Eigenvalues[H] // ToRadicals
but the resultant expression is not so easy to handle. Even after trying to simplify it under the condition your offer, it helps little:
As @b.gates.you.know.what mentions, you can use ToRadicals
Eigenvalues[H] // ToRadicals
but the resultant expression is not so easy to handle. Even after trying to simplify it under the condition you offer, it helps little:
As @b.gates.you.know.what mentions, you can use ToRadicals
Eigenvalues[H] // ToRadicals
but the resultant expression is not so easy to handle. Even after trying to simplify it under the condition your offer, it helps little: