The author of the book “The Atomic Weight of Love” is Elizabeth J. Church. The book is a novel that spans from World War II through the Vietnam War. The book tells the story of Meridian Wallace, a woman whose scientific ambitions get caught up in her relationships with two very different men. The story follows Meridian, an aspiring ornithologist. She put her career on hold and followed her physics professor husband to Los Alamos. where he was engaged in a secret government project.