Abstract
We calculate the rate of the spontaneous magnetic dipole radiation transitions from ortho-to para-states of the hydrogen molecule at room temperature with radiation wavelengths of about 0.01-0.1 cm. Exponentially small differences between the rotational energies and heat capacities of parahydrogen, orthohydrogen molecules and diatomic molecules consisting of different hydrogen atoms for high temperatures are derived.
| Original language | English |
|---|---|
| Article number | 235401 |
| Journal | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Volume | 51 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - 13 Nov 2018 |
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Keywords
- magnetic dipole transitions
- orthohydrogen molecule
- parahydrogen molecule
- partition function
- spin flip
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
Cite this
Low-frequency electromagnetic radiation of hydrogen molecular gas : Effect of the ortho-para conversion. / Ishkhanyan, A. M.; Krainov, V. P.
In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 51, No. 23, 235401, 13.11.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Low-frequency electromagnetic radiation of hydrogen molecular gas
T2 - Effect of the ortho-para conversion
AU - Ishkhanyan, A. M.
AU - Krainov, V. P.
PY - 2018/11/13
Y1 - 2018/11/13
N2 - We calculate the rate of the spontaneous magnetic dipole radiation transitions from ortho-to para-states of the hydrogen molecule at room temperature with radiation wavelengths of about 0.01-0.1 cm. Exponentially small differences between the rotational energies and heat capacities of parahydrogen, orthohydrogen molecules and diatomic molecules consisting of different hydrogen atoms for high temperatures are derived.
AB - We calculate the rate of the spontaneous magnetic dipole radiation transitions from ortho-to para-states of the hydrogen molecule at room temperature with radiation wavelengths of about 0.01-0.1 cm. Exponentially small differences between the rotational energies and heat capacities of parahydrogen, orthohydrogen molecules and diatomic molecules consisting of different hydrogen atoms for high temperatures are derived.
KW - magnetic dipole transitions
KW - orthohydrogen molecule
KW - parahydrogen molecule
KW - partition function
KW - spin flip
UR - http://www.scopus.com/inward/record.url?scp=85056864262&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85056864262&partnerID=8YFLogxK
U2 - 10.1088/1361-6455/aae6ee
DO - 10.1088/1361-6455/aae6ee
M3 - Article
VL - 51
JO - Journal of Physics B: Atomic, Molecular and Optical Physics
JF - Journal of Physics B: Atomic, Molecular and Optical Physics
SN - 0953-4075
IS - 23
M1 - 235401
ER -