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Q: Quantenoptik
Q 52: Quanteneffekte 3
Q 52.1: Talk
Friday, March 28, 2003, 14:00–14:15, F107
Solvable phase-space dynamics of a strongly-driven micromaser — •Pavel Lougovski1, Federico Casagrande2, Alfredo Lulli2, Berthold-Georg Englert1,3, Enrique Solano1,4, and Herbert Walther1 — 1Max-Planck-Institut für Quantenoptik,Hans-Kopfermann-Strasse 1, 85748 Garching, Germany — 2INFM - Dipartimento di Fisica, Università di Milano, Via Celoria 16, 20133 Milano, Italy — 3Department of Physics , National University of Singapore, 2 Science Drive 3, Singapore 117542 — 4Sección Física, Depto. de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Peru
We present the theory of a strongly-driven one-atom-maser [1,2]. We show that the master equation of this new system can be solved analytically by means of phase-space techniques, offering an unusual solvable model of a quantum mechanical open system, including pumping and decoherence. In this way, we are able to monitor the evolution of the field towards its steady state, which is essentially superpoissonian and nondiagonal in contrast to the conventional one-atom-maser (micromaser). We obtain closed expressions for the atomic correlations and find that they exhibit stronger nonclassical features when compared with the conventional micromaser, despite the classicality of its steady-state. [1] D. Meschede, H. Walther, and G. Müller, Phys. Rev. Lett. 54, 551 (1985); P. Filipowicz, J. Javanainen, and P. Meystre, Phys. Rev. A 34, 3077 (1986). [2] E. Solano, G. S. Agarwal, and H. Walther, to be published in Phys. Rev. Letters (quant-ph/0202071).