RT Journal Article T1 Determination of atom-field observables via resonant interaction A1 Luis Aina, Alfredo A1 Sánchez Soto, Luis Lorenzo AB We find the observables that-can be determined by two practical schemes based on atom-field resonant interaction. In the first example, the interaction is followed by photon-number and atomic-population measurements. In the second scheme the directly measured quantity is the atomic deflection. In particular, we show that they provide the measurement of the atom-field relative phase. When the initial field state is known, the atomic density matrix can be reconstructed. PB American Physical Society SN 1050-2947 YR 1998 FD 1998-04 LK https://hdl.handle.net/20.500.14352/59703 UL https://hdl.handle.net/20.500.14352/59703 LA eng NO © 1998 The American Physical Society DS Docta Complutense RD 8 abr 2025