Is there a law in louisiana that require a two week notice before quiting a job?:
The first answerer should be correct.  I don't know Louisiana law, but I've never heard of a state putting something like that into law.  Instead, it is a common courtesy that employers and employees typically offer two weeks notice before terminating.  If you want to maintain a good relationship with your employer, or want a good reference from them later, it's advisable to give two-weeks notice, but I'd be shocked to hear that it is required.