Hannover 2003 – wissenschaftliches Programm

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Q: Quantenoptik

Q 52: Quanteneffekte 3

Q 52.1: Vortrag

Freitag, 28. März 2003, 14:00–14:15, F107

Solvable phase-space dynamics of a strongly-driven micromaser — •Pavel Lougovski¹, Federico Casagrande², Alfredo Lulli², Berthold-Georg Englert^1,3, Enrique Solano^1,4, 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).