GENERATION OF HIGHLY ENTANGLED FIELD STATES IN MULTIPLE MICROMASER CAVITIES

Highly entangled states of more than one quantum system are necessary for tests of local hidden-variable theories and of quantum mechanics i tself. We show how to produce field states, which are located in sever al cavities and are highly entangled, by sending apropriately prepared atoms through the cavities. We discuss both a two-cavity and a three- cavity state in which either each cavity is in a one-photon number sta te or each is in the vacuum state. Finally, a test of quantum mechanic s using the two-cavity state is presented.