A well written and interesting book. As a fan of Emmy Noether (one of, possibly the best, mathematician of the 20th century) I found it especially so. Presumably , as an American, the author portrays bible belt attitudes and patent procedures accurately. Also the character of Katarina, gives some taste of the brilliance of mind required to be active in modern physics.
Don't worry about this physics stuff . The hero is a likeable character trying to rebuild his life ,clear his debts, and be reunited with his son, while finding love in the process.