Effective interactions are effective interactions
In recent years it has been realized that effective interactions—those valid over a limited range of energy-momentum—are often preferable even when more complete theories are available. We shall here present examples of such methods over a range of physical applications—from classical and quantum mechanics, to quantum gravity.
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 50, NO 2
Book Series Title
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS