Effects of Squeezing on the Power Broadening and Shifts of Micromaser Lineshapes

Round 1

Reviewer 1 Report

*

Author Response

We thank the reviewer for the time taken for this review.

Reviewer 2 Report

The manuscript explores the effect of the compression parameter on atomic line shapes in the framework of the Jaynes-Cummings（JC） model. The analysis takes into account the AC Stark term and nearby non-resonant levels. The study reveals that atomic lineshapes are highly dependent on the values and signs of the squeezing parameter, which is analyzed by considering the field in a squeezed coherent state. This finding is interesting for the analysis of micromaser systems' lineshapes.  Before the manuscript is accepted for publication in Photonics, there are a couple of comments that need to be addressed.

Firstly, the manuscript did not specify the units for the numerical values used in the text. For example, in line 133, the author sets the coupling strength to g=1. It is unclear whether it is in the ultra-strong coupling regime, and whether the Jaynes-Cummings model still applies in this case.

 Secondly, the manuscript uses the same symbols for the Mandel parameter and the Husimi Q function, which may lead to confusion. It would be helpful to differentiate them using distinct symbols.

No

Author Response

We thank the reviewer for his/her positive comments. Answers to the rised questions are given below:

Firstly, the manuscript did not specify the units for the numerical values used in the text. For example, in line 133, the author sets the coupling strength to g=1. It is unclear whether it is in the ultra-strong coupling regime, and whether the Jaynes-Cummings model still applies in this case.

Thank you for the concern. It is common in the literature to use such values, the important facts is the rate between the different parameters, i.e., between g and \chi, for instance. We could have also defined an adimensional time \tau=gt which would, effectively, have given a value g=1.

 Secondly, the manuscript uses the same symbols for the Mandel parameter and the Husimi Q function, which may lead to confusion. It would be helpful to differentiate them using distinct symbols.

Thank you for noting the simmilarity between both function. We have used now Q_M for the Mandel-Q parameter.

Reviewer 3 Report

The manuscript concerns the topics related to the sources of nonclassical light. In particular, the Authors consider a model of a single-atom laser. They discuss a model involving the pair of nearly resonant excited atomic states and a set of non-resonant levels that participate only virtually in the excitation and are responsible for the AC Stark shifts.

Assuming that the field is initially in the squeezed displaced state, the authors found the solutions for the probability amplitudes to determine the model’s dynamics. Primarily, they concentrate mainly on such parameters as the atomic inversion and the Husimi Q-function. As the initial stat is a squeezed one (or a superposition of such states), the Authors show that the displacement of the transition lines depends not only on the squeezing parameter r but also on its sign. Additionally, the lineshapes’ distortions are more sensitive to the changes in the value of r when the superposition sign is negative.

The results seem to be correct and valid enough to be published. The manuscript is well written and is accessible to a broad range of Readers. The results are presented clearly and discussed thoroughly. Thus, I recommend the manuscript for publication in its present form.

Author Response

Thank you very much for the very positive view of our manuscript.