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Pis'ma v Zh. Èksper. Teoret. Fiz.:

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Pis'ma v Zh. Èksper. Teoret. Fiz., 2008, Volume 87, Issue 1, Pages 28–32 (Mi jetpl6)  

This article is cited in 8 scientific papers (total in 8 papers)


Collision frequency shift of hyperfine transitions in atomic hydrogen at a low temperature

A. I. Safonov, I. I. Safonova, I. I. Lukashevich

Russian Research Centre Kurchatov Institute, pl. Akademika Kurchatova 1, Moscow, 123182, Russia

Abstract: The experimental results on the collision frequency shift of ESR in diluted two-and three-dimensional atomic hydrogen at ultralow temperature have been analyzed. The apparent contradiction between experiment and theory is resolved by taking into account the relation between the symmetry of the state of two atoms and their total electron spin $S$. For example, transitions between symmetric and antisymmetric states of a pair of atoms induced by a symmetric perturbation are forbidden. If symmetric and antisymmetric states are, respectively, pure electronic triplets ($S=1$) and singlets ($S=0$), this results in the cancellation of the singlet-triplet transitions. Thus, the collision frequency shift of $b\to c$ and $b\to a$ transitions vanishes in a completely electron and nuclear spin-polarized gas (hyperfine state $b$). The comparison is performed with experiments in ultracold alkali vapors.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2008, 87:1, 23–26

Bibliographic databases:

Document Type: Article
PACS: 32.30.Dx, 32.70.Jz, 32.80.Cy, 33.35.+r, 67.65.+z
Received: 15.11.2007

Citation: A. I. Safonov, I. I. Safonova, I. I. Lukashevich, “Collision frequency shift of hyperfine transitions in atomic hydrogen at a low temperature”, Pis'ma v Zh. Èksper. Teoret. Fiz., 87:1 (2008), 28–32; JETP Letters, 87:1 (2008), 23–26

Citation in format AMSBIB
\by A.~I.~Safonov, I.~I.~Safonova, I.~I.~Lukashevich
\paper Collision frequency shift of hyperfine transitions in atomic hydrogen at a low temperature
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2008
\vol 87
\issue 1
\pages 28--32
\jour JETP Letters
\yr 2008
\vol 87
\issue 1
\pages 23--26

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    This publication is cited in the following articles:
    1. Ahokas J., Jarvinen J., Shlyapnikov G.V., Vasiliev S., “Clock Shift in High Field Magnetic Resonance of Atomic Hydrogen”, Physical Review Letters, 101:26 (2008), 263003  crossref  adsnasa  isi  elib  scopus
    2. JETP Letters, 90:1 (2009), 8–12  mathnet  crossref  isi
    3. Hazzard K.R.A., Mueller E.J., “Erratum: Influence of Film-Mediated Interactions on the Microwave and Radio Frequency Spectrum of Spin-Polarized Hydrogen on Helium Films [Phys. Rev. Lett. 101, 165301 (2008)]”, Physical Review Letters, 103:4 (2009), 049902, 1 pp.  crossref  adsnasa  isi  elib  scopus
    4. Hazzard K.R.A., Mueller E.J., “Candidate theories to explain the anomalous spectroscopic signatures of atomic H in molecular H$_2$ crystals”, Physical Review B, 82:1 (2010), 014303, 6 pp.  crossref  adsnasa  isi  elib  scopus
    5. Safonov A.I., Safonova I.I., Yasnikov I.S., “Comment on “Clock Shift in High Field Magnetic Resonance of Atomic Hydrogen””, Physical Review Letters, 104:9 (2010), 099301  crossref  adsnasa  isi  scopus
    6. Ahokas J., Vainio O., Novotny S., Jarvinen J., Vasiliev S., “Magnetic resonance line shifts in the quantum gas of atomic hydrogen”, Phys Scripta, T140 (2010), 014012  crossref  adsnasa  isi  scopus
    7. Safonov A.I., Safonova I.I., Yasnikov I.S., “Clock Shift and Interstate Coherence of Multi-Level Atoms”, Journal of Low Temperature Physics, 162:3–4 (2011), 127–135  crossref  mathscinet  adsnasa  isi  scopus
    8. Safonov A.I., Safonova I.I., Yasnikov I.S., “Interaction-enhanced double resonance in cold gases”, The European Physical Journal D, 65:1–2 (2011), 279–284  crossref  adsnasa  isi  elib  scopus
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