Pravila summ i ikh primyenyeniye v tyeorii svyerkhtyekuchyego gyeliya

Research output: Contribution to journalArticle

Abstract

The first part of this paper is devoted to investigating the static response functions of superfluid helium in the hydrodynamic region which results in obtaining a new sum rule. Sum rules are then specialized to zero temperature and exploited to determine matrix elements of the particle creation and annihilation operators between the ground state and the one quasiparticle state in the long wavelength limit. We examine the particle distribution function and besides calculating the leading term, we are able to give a lower limit to the next one in the expansion for small wave numbers.

Original languageEnglish
Pages (from-to)299-307
Number of pages9
JournalActa Physica Academiae Scientiarum Hungaricae
Volume27
Issue number1-4
DOIs
Publication statusPublished - Dec 1969

Fingerprint

sum rules
distribution functions
helium
hydrodynamics
operators
expansion
ground state
matrices
wavelengths
temperature

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Pravila summ i ikh primyenyeniye v tyeorii svyerkhtyekuchyego gyeliya. / Szépfalusy, P.

In: Acta Physica Academiae Scientiarum Hungaricae, Vol. 27, No. 1-4, 12.1969, p. 299-307.

Research output: Contribution to journalArticle

@article{dbb91e69bc88489ca5006d32db5b3c26,
title = "Pravila summ i ikh primyenyeniye v tyeorii svyerkhtyekuchyego gyeliya",
abstract = "The first part of this paper is devoted to investigating the static response functions of superfluid helium in the hydrodynamic region which results in obtaining a new sum rule. Sum rules are then specialized to zero temperature and exploited to determine matrix elements of the particle creation and annihilation operators between the ground state and the one quasiparticle state in the long wavelength limit. We examine the particle distribution function and besides calculating the leading term, we are able to give a lower limit to the next one in the expansion for small wave numbers.",
author = "P. Sz{\'e}pfalusy",
year = "1969",
month = "12",
doi = "10.1007/BF03156754",
language = "English",
volume = "27",
pages = "299--307",
journal = "Acta Physica Academiae Scientiarum Hungaricae",
issn = "0001-6705",
publisher = "Akademiai Kiado",
number = "1-4",

}

TY - JOUR

T1 - Pravila summ i ikh primyenyeniye v tyeorii svyerkhtyekuchyego gyeliya

AU - Szépfalusy, P.

PY - 1969/12

Y1 - 1969/12

N2 - The first part of this paper is devoted to investigating the static response functions of superfluid helium in the hydrodynamic region which results in obtaining a new sum rule. Sum rules are then specialized to zero temperature and exploited to determine matrix elements of the particle creation and annihilation operators between the ground state and the one quasiparticle state in the long wavelength limit. We examine the particle distribution function and besides calculating the leading term, we are able to give a lower limit to the next one in the expansion for small wave numbers.

AB - The first part of this paper is devoted to investigating the static response functions of superfluid helium in the hydrodynamic region which results in obtaining a new sum rule. Sum rules are then specialized to zero temperature and exploited to determine matrix elements of the particle creation and annihilation operators between the ground state and the one quasiparticle state in the long wavelength limit. We examine the particle distribution function and besides calculating the leading term, we are able to give a lower limit to the next one in the expansion for small wave numbers.

UR - http://www.scopus.com/inward/record.url?scp=77951516637&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77951516637&partnerID=8YFLogxK

U2 - 10.1007/BF03156754

DO - 10.1007/BF03156754

M3 - Article

AN - SCOPUS:77951516637

VL - 27

SP - 299

EP - 307

JO - Acta Physica Academiae Scientiarum Hungaricae

JF - Acta Physica Academiae Scientiarum Hungaricae

SN - 0001-6705

IS - 1-4

ER -