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- Kai J. Drühl, Claude Windenberger
- 1998

We study a generalized notion of two-mode squeezing for the Stokes and anti-Stokes fields in a model of a cavity Raman laser, which leads to a significant reduction in decoherence or quantum noise. The model comprises a loss-less cavity with classical pump, unsaturated medium and arbitrary homogeneous broadening and dispersion. Allowing for arbitrary linear… (More)

- Kai J. Drühl
- 1993

In the measurement of a continuous observable Q, the pure components of the reduced state do, in general, depend on the initial state. For measurements which attempt to localize the measured system in a certain region R, the localized wave functions are proportional to the original wave function outside of R. This “quantum memory” effect shows that it is… (More)

- Kai J. Drühl
- 1998

We study the effects of higher order transversal modes in a model of a singlyresonant OPO, using both numerical solutions and mode expansions including up to two radial modes. The numerical and two-mode solutions predict lower threshold and higher conversion than the single-mode solution at negative dispersion. Relative power in the zero order radial mode… (More)

- Kai J. Drühl
- 2002

This paper investigates the role of consciousness for the field of physics. We propose that physics needs to include a systematic account of consciousness if it aims to offer a complete account of the physical world. The discovery of quantum mechanics, and of completely unified quantum field theories such as superstring theory, has resulted in a profound… (More)

- Kai J. Drühl, Sameer Shakir, Muhammad Yousaf
- Optics letters
- 1986

We predict Stokes-beam divergence, origin, and gain for large-gain Raman amplifiers as functions of pump-beam divergence and pump power in terms of simple analytical expressions. Stokes divergence is found to peak at a pump power twice above threshold. Results are in excellent agreement with exact computer solutions and explain recent experimental… (More)

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