Transmission and reflection of collective modes in spin-1 Bose-Einstein condensate

Shohei Watabe; Yusuke Kato

doi:10.1007/s10909-009-9974-z

Transmission and reflection of collective modes in spin-1 Bose-Einstein condensate

Shohei Watabe, Yusuke Kato

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

7 Citations (Scopus)

Abstract

We study tunneling properties of collective excitations in spin-1 Bose-Einstein condensates. In the absence of magnetic fields, the total transmission in the long wavelength limit occurs in all kinds of excitations but the quadrupolar spin mode in the ferromagnetic state. The quadrupolar spin mode alone shows the total reflection. A difference between those excitations comes from whether the wavefunction of an excitation corresponds to that of the condensate in the long wavelength limit. The correspondence results in the total transmission as in the spinless BEC.

Original language	English
Pages (from-to)	23-28
Number of pages	6
Journal	Journal of Low Temperature Physics
Volume	158
Issue number	1-2
DOIs	https://doi.org/10.1007/s10909-009-9974-z
Publication status	Published - 2010 Jan
Externally published	Yes

Keywords

Excitation
Quantum gas
Spin-1 BEC
Tunneling problem

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Materials Science(all)
Condensed Matter Physics

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10.1007/s10909-009-9974-z

Cite this

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title = "Transmission and reflection of collective modes in spin-1 Bose-Einstein condensate",

abstract = "We study tunneling properties of collective excitations in spin-1 Bose-Einstein condensates. In the absence of magnetic fields, the total transmission in the long wavelength limit occurs in all kinds of excitations but the quadrupolar spin mode in the ferromagnetic state. The quadrupolar spin mode alone shows the total reflection. A difference between those excitations comes from whether the wavefunction of an excitation corresponds to that of the condensate in the long wavelength limit. The correspondence results in the total transmission as in the spinless BEC.",

keywords = "Excitation, Quantum gas, Spin-1 BEC, Tunneling problem",

author = "Shohei Watabe and Yusuke Kato",

note = "Funding Information: Acknowledgements This work is supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research on Priority Areas 20029007, and also supported by Japan Society of Promotion of Science, Grant-in-Aid for Scientific Research (C), 21540352. S.W. thanks support from the Fujyu-kai Foundation, and GCOE for Phys. Sci. Frontier, MEXT, Japan in the last fiscal year, and Grant-in-Aid for JSPS Fellows (217751) in the current fiscal year.",

year = "2010",

month = jan,

doi = "10.1007/s10909-009-9974-z",

language = "English",

volume = "158",

pages = "23--28",

journal = "Journal of Low Temperature Physics",

issn = "0022-2291",

publisher = "Springer New York",

number = "1-2",

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T1 - Transmission and reflection of collective modes in spin-1 Bose-Einstein condensate

AU - Watabe, Shohei

AU - Kato, Yusuke

N1 - Funding Information: Acknowledgements This work is supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research on Priority Areas 20029007, and also supported by Japan Society of Promotion of Science, Grant-in-Aid for Scientific Research (C), 21540352. S.W. thanks support from the Fujyu-kai Foundation, and GCOE for Phys. Sci. Frontier, MEXT, Japan in the last fiscal year, and Grant-in-Aid for JSPS Fellows (217751) in the current fiscal year.

PY - 2010/1

Y1 - 2010/1

N2 - We study tunneling properties of collective excitations in spin-1 Bose-Einstein condensates. In the absence of magnetic fields, the total transmission in the long wavelength limit occurs in all kinds of excitations but the quadrupolar spin mode in the ferromagnetic state. The quadrupolar spin mode alone shows the total reflection. A difference between those excitations comes from whether the wavefunction of an excitation corresponds to that of the condensate in the long wavelength limit. The correspondence results in the total transmission as in the spinless BEC.

AB - We study tunneling properties of collective excitations in spin-1 Bose-Einstein condensates. In the absence of magnetic fields, the total transmission in the long wavelength limit occurs in all kinds of excitations but the quadrupolar spin mode in the ferromagnetic state. The quadrupolar spin mode alone shows the total reflection. A difference between those excitations comes from whether the wavefunction of an excitation corresponds to that of the condensate in the long wavelength limit. The correspondence results in the total transmission as in the spinless BEC.

KW - Excitation

KW - Quantum gas

KW - Spin-1 BEC

KW - Tunneling problem

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JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 1-2

ER -

Transmission and reflection of collective modes in spin-1 Bose-Einstein condensate

Abstract

Keywords

ASJC Scopus subject areas

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