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Evidence for roton pair creation in superfluid 4He

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Evidence for roton pair creation in superfluid 4He. / Allum, D. R.; Bowley, R. M.; McClintock, Peter V. E.
In: Physical review letters, Vol. 36, No. 22, 31.05.1976, p. 1313-1316.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Allum, DR, Bowley, RM & McClintock, PVE 1976, 'Evidence for roton pair creation in superfluid 4He', Physical review letters, vol. 36, no. 22, pp. 1313-1316. https://doi.org/10.1103/PhysRevLett.36.1313

APA

Allum, D. R., Bowley, R. M., & McClintock, P. V. E. (1976). Evidence for roton pair creation in superfluid 4He. Physical review letters, 36(22), 1313-1316. https://doi.org/10.1103/PhysRevLett.36.1313

Vancouver

Allum DR, Bowley RM, McClintock PVE. Evidence for roton pair creation in superfluid 4He. Physical review letters. 1976 May 31;36(22):1313-1316. doi: 10.1103/PhysRevLett.36.1313

Author

Allum, D. R. ; Bowley, R. M. ; McClintock, Peter V. E. / Evidence for roton pair creation in superfluid 4He. In: Physical review letters. 1976 ; Vol. 36, No. 22. pp. 1313-1316.

Bibtex

@article{4fe3c8ec8cc64104912afd244afbce60,
title = "Evidence for roton pair creation in superfluid 4He",
abstract = "We have measured the drift velocity v of negative ions through superfluid 4He for temperatures T < 0.45 K, under a pressure of 25 bar, for electric fields 20 < E< 2.6 x 10^4 V/cm. From the observed form of v(E), we deduce that roton emission from an ion traveling faster than the Landau critical velocity is governed by hitherto unrecognized selection rules whereby the rotons can be created only in pairs.",
author = "Allum, {D. R.} and Bowley, {R. M.} and McClintock, {Peter V. E.}",
year = "1976",
month = may,
day = "31",
doi = "10.1103/PhysRevLett.36.1313",
language = "English",
volume = "36",
pages = "1313--1316",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",
number = "22",

}

RIS

TY - JOUR

T1 - Evidence for roton pair creation in superfluid 4He

AU - Allum, D. R.

AU - Bowley, R. M.

AU - McClintock, Peter V. E.

PY - 1976/5/31

Y1 - 1976/5/31

N2 - We have measured the drift velocity v of negative ions through superfluid 4He for temperatures T < 0.45 K, under a pressure of 25 bar, for electric fields 20 < E< 2.6 x 10^4 V/cm. From the observed form of v(E), we deduce that roton emission from an ion traveling faster than the Landau critical velocity is governed by hitherto unrecognized selection rules whereby the rotons can be created only in pairs.

AB - We have measured the drift velocity v of negative ions through superfluid 4He for temperatures T < 0.45 K, under a pressure of 25 bar, for electric fields 20 < E< 2.6 x 10^4 V/cm. From the observed form of v(E), we deduce that roton emission from an ion traveling faster than the Landau critical velocity is governed by hitherto unrecognized selection rules whereby the rotons can be created only in pairs.

U2 - 10.1103/PhysRevLett.36.1313

DO - 10.1103/PhysRevLett.36.1313

M3 - Journal article

VL - 36

SP - 1313

EP - 1316

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 22

ER -