Search for Fulde–Ferrell–Larkin–Ovchinnikov Superfluidity in an Ultracold Gas of Fermi Atoms

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Search for Fulde–Ferrell–Larkin–Ovchinnikov Superfluidity in an Ultracold Gas of Fermi Atoms. / Vinogradov, V. A.; Karpov, K. A.; Lukashov, S. S.; Platonova, M. V.; Turlapov, A. V.

In: Journal of Surface Investigation, Vol. 15, No. 5, 01.09.2021, p. 1024-1028.

Research output: Contribution to journal › Article › peer-review

Author

Vinogradov, V. A. ; Karpov, K. A. ; Lukashov, S. S. ; Platonova, M. V. ; Turlapov, A. V. / Search for Fulde–Ferrell–Larkin–Ovchinnikov Superfluidity in an Ultracold Gas of Fermi Atoms. In: Journal of Surface Investigation. 2021 ; Vol. 15, No. 5. pp. 1024-1028.

BibTeX

@article{88821bc267c64ba8945f23175d5ca82e,

title = "Search for Fulde–Ferrell–Larkin–Ovchinnikov Superfluidity in an Ultracold Gas of Fermi Atoms",

abstract = "Abstract: In this paper, we discuss the search for the Fulde–Ferrell–Larkin–Ovchinnikov superfluid phase in an ultracold gas of Fermi atoms. A possible obstacle to obtaining this phase in known experiments is, first of all, the separation of the gas into a spin-balanced phase and a completely polarized phase. This phase separation is caused by confinement in an external parabolic potential. A second possible obstacle is the insufficiently low temperature-to-Fermi energy ratio. Trapping the gas in a large-scale optical-dipole trap with a flat potential inside will avoid phase separation. Moreover, the trap will allow an increase in the number of atoms, which, in turn, can lead to a decrease in the temperature relative to the Fermi energy. The results of a primary experiment on loading atoms into a similar trap from a magneto-optical trap are presented.",

keywords = "Fermi gas, gas of atoms, laser trapping and cooling, light scattering, optical-dipole force, superconductivity, superfluidity, TRANSITION",

author = "Vinogradov, {V. A.} and Karpov, {K. A.} and Lukashov, {S. S.} and Platonova, {M. V.} and Turlapov, {A. V.}",

note = "Publisher Copyright: {\textcopyright} 2021, Pleiades Publishing, Ltd.",

year = "2021",

month = sep,

day = "1",

doi = "10.1134/s1027451021050426",

language = "English",

volume = "15",

pages = "1024--1028",

journal = "ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ",

issn = "1027-4510",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "5",

}

RIS

TY - JOUR

T1 - Search for Fulde–Ferrell–Larkin–Ovchinnikov Superfluidity in an Ultracold Gas of Fermi Atoms

AU - Vinogradov, V. A.

AU - Karpov, K. A.

AU - Lukashov, S. S.

AU - Platonova, M. V.

AU - Turlapov, A. V.

PY - 2021/9/1

Y1 - 2021/9/1

N2 - Abstract: In this paper, we discuss the search for the Fulde–Ferrell–Larkin–Ovchinnikov superfluid phase in an ultracold gas of Fermi atoms. A possible obstacle to obtaining this phase in known experiments is, first of all, the separation of the gas into a spin-balanced phase and a completely polarized phase. This phase separation is caused by confinement in an external parabolic potential. A second possible obstacle is the insufficiently low temperature-to-Fermi energy ratio. Trapping the gas in a large-scale optical-dipole trap with a flat potential inside will avoid phase separation. Moreover, the trap will allow an increase in the number of atoms, which, in turn, can lead to a decrease in the temperature relative to the Fermi energy. The results of a primary experiment on loading atoms into a similar trap from a magneto-optical trap are presented.

AB - Abstract: In this paper, we discuss the search for the Fulde–Ferrell–Larkin–Ovchinnikov superfluid phase in an ultracold gas of Fermi atoms. A possible obstacle to obtaining this phase in known experiments is, first of all, the separation of the gas into a spin-balanced phase and a completely polarized phase. This phase separation is caused by confinement in an external parabolic potential. A second possible obstacle is the insufficiently low temperature-to-Fermi energy ratio. Trapping the gas in a large-scale optical-dipole trap with a flat potential inside will avoid phase separation. Moreover, the trap will allow an increase in the number of atoms, which, in turn, can lead to a decrease in the temperature relative to the Fermi energy. The results of a primary experiment on loading atoms into a similar trap from a magneto-optical trap are presented.

KW - Fermi gas

KW - gas of atoms

KW - laser trapping and cooling

KW - light scattering

KW - optical-dipole force

KW - superconductivity

KW - superfluidity

KW - TRANSITION

UR - http://www.scopus.com/inward/record.url?scp=85117612959&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/2d479d31-6f69-3cc6-97ca-1b06257aca05/

U2 - 10.1134/s1027451021050426

DO - 10.1134/s1027451021050426

M3 - Article

AN - SCOPUS:85117612959

VL - 15

SP - 1024

EP - 1028

JO - ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ

JF - ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ

SN - 1027-4510

IS - 5

ER -

ID: 87819471