Spectroscopy of Rydberg Atomic Systems in a Black-Body Radiation Field

We show that treating the black-body radiation field as a heat bath enables one to utilize powerful techniques from the realm of stochastic physics (such as the fluctuation–dissipation theorem and the related radiation damping) to treat problems that could not be treated rigorously by conventional methods. We illustrate our remarks by discussing specifically the effect of temperature on atomic spectral lines, and the solution to the problem of runaway solutions in the equation of motion of a radiating electron. We also present brief discussions relating to anomalous diffusion and wave-packet spreading in a radiation field and the influence of quantum effects on the laws of thermodynamics.PACS Nos.: 31.30.jg, 05.40.–a

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On the interaction of a black-body radiation field with a photoconductor

Physica A Statistical Mechanics and its Applications ◽

10.1016/0378-4371(77)90109-1 ◽

1977 ◽

Vol 89 (2) ◽

pp. 353-362 ◽

Cited By ~ 7

Author(s):

K.M. van Vliet ◽

R.J.J. Zijlstra

Keyword(s):

Radiation Field ◽

Black Body ◽

Black Body Radiation

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Effect of electromagnetic radiation on the Lamb shift

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1952.0156 ◽

1952 ◽

Vol 214 (1116) ◽

pp. 137-142 ◽

Cited By ~ 10

Keyword(s):

Electromagnetic Radiation ◽

Radiation Field ◽

Lamb Shift ◽

Black Body ◽

Black Body Radiation ◽

External Radiation ◽

Discrete States ◽

The Continuum

If there is an external radiation field surrounding the atom, it influences the value of the Lamb shift. It is shown that for black-body radiation at temperature comparable to 10 5 degrees, the change in the Lamb shift due to the influence of radiation is of the same order as the Lamb shift itself. Whereas the transitions to the continuum largely contribute to the Lamb shift (in the absence of radiation), the change in the Lamb shift is largely due to transitions to discrete states.

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Spectroscopy of Rydberg atoms in a Black-body radiation field: Relativistic theory of excitation and ionization

Journal of Physics Conference Series ◽

10.1088/1742-6596/548/1/012048 ◽

2014 ◽

Vol 548 ◽

pp. 012048 ◽

Cited By ~ 1

Author(s):

A A Svinarenko ◽

O Yu Khetselius ◽

V V Buyadzhi ◽

T A Florko ◽

P A Zaichko ◽

...

Keyword(s):

Radiation Field ◽

Relativistic Theory ◽

Rydberg Atoms ◽

Black Body ◽

Black Body Radiation

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Spectroscopy of Rydberg Atoms in a Black-body Radiation field: Ionisation Rates and Effective Lifetimes

Journal of Physics Conference Series ◽

10.1088/1742-6596/1289/1/012024 ◽

2019 ◽

Vol 1289 ◽

pp. 012024

Author(s):

A V Glushkov ◽

V B Ternovsky ◽

A A Kuznetsova ◽

E Romanenko ◽

P A Zaichko

Keyword(s):

Radiation Field ◽

Rydberg Atoms ◽

Black Body ◽

Black Body Radiation

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Interstellar Molecules - The Optical Region

Highlights of Astronomy ◽

10.1017/s1539299600000277 ◽

1971 ◽

Vol 2 ◽

pp. 339-349

Author(s):

D. McNally

Keyword(s):

Radiation Field ◽

Black Body ◽

Black Body Radiation ◽

Interstellar Space ◽

Excitation Temperature ◽

Optical Studies ◽

Interstellar Molecules ◽

A Value ◽

Optical Region ◽

Molecular Lines

Considerable attention has recently been given to the observation of interstellar molecules by radio methods. Interstellar molecules have also been given a boost because of excitation by the 3K black body radiation field (to use a convenient description). Nevertheless optical studies of interstellar lines have reached a very low ebb and, with brighter moments, have remained so since the work of Adams (1949).The years 1937-1942 were the exciting period for optical studies of interstellar molecular lines. It is interesting to note that it was not molecular lines as such that led to the suspicion that molecules might exist in interstellar space but it was the discovery of the diffuse features at 5780, 5797, 6284 and 6614 by Merrill (1934) that led Russell (1935) to speculate on the possibility of their existence. It was Swings and Rosenfeld (1937) who stressed that likely interstellar molecules would be CH, OH, NH, CN and C2. Dunham, Adams and McKellar did much of the work of identifying interstellar lines in the period 1937-1940 and indeed McKellar (1941) had derived an excitation temperature of 2-3 K for CN - a value subsequently rediscovered.

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