Entropy Evaluation of the Laser Cooling Process
| Authors | Yu.S. Kurskoy , Yu.P. Machekhin, A.S. Gnatenko |
| Affiliations |
Kharkiv National University of Radio Electronics, 14, Nauka Ave, 61166 Kharkiv, Ukraine |
| Е-mail | |
| Issue | Volume 10, Year 2018, Number 5 |
| Dates | Received 12 July 2018; revised manuscript received 20 October 2018; published online 29 October 2018 |
| Citation | Yu.S. Kurskoy, Yu.P. Machekhin, A.S. Gnatenko, J. Nano- Electron. Phys. 10 No 5, 05030 (2018) |
| DOI | https://doi.org/10.21272/jnep.10(5).05030 |
| PACS Number(s) | 42.55, 02.40.Xx, 65.40.gd, 89.70.Cf, 06.02. – f |
| Keywords | Laser cooling of particles, Shannon entropy, Maxwell distribution, Entropy scale. |
| Annotation |
The paper deals with the problem of laser cooling of particles (atoms, ions, molecules). The possibility of estimating the parameters of the ensemble of cooled particles with the use of entropy analysis is investigated. The cooling process is considered from the standpoint of the open systems theory and nonlinear metrology theory. It is shown that laser cooling is a process of interaction of a deterministic system of laser radiation with a chaotic system of particles in the Brownian motion. The authors suggest to use the information-entropy approach to estimate the velocity and temperature of an ensemble of particles and process control. It is obtained the formula for estimation of entropy of an ensemble of particles as a function of a frequency of scattered radiation and an entropy scale for evaluating the temperature of the cooled particles is proposed too. Key words: Laser cooling of particles, Shannon entropy, Maxwell distribution, Entropy scale. |
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List of References English version of article |
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