Composite structure of vortices in two-component Bose-Einstein condensate

• Autorzy: Anatoly P. Ivashin , Yuri M. Poluektov
• Języki publikacji: EN

Abstrakty

EN

In contrast to one-component Bose-Einstein condensate case, the vortices in two-component condensate can have various complicated structures. The vortices in a space-homogeneous Bose-Einstein condensate have been studied in this paper. It is shown that the vortex structure is described by three dimensionless parameters. This is totally different from the usual one-component condensate case,where an isolated vortex is described by a parameterless dimensionless equation. The two-component vortex structure strongly depends on the sign of “interaction” constant of the components. A few types of vortices with different qualitative structure are explored. We show that the “super-density vortices” can exist, when the “interaction” constant is positive. The “super-density vortices” have the near-axis density greater than the equilibrium density of a homogeneous space Bose-Einstein condensate. We also show that the vortices with opposite direction of the condensate component rotation near the axis and far off the axis can exist.

Słowa kluczowe

EN

Bose Einstein multi-component condensate; Gross-Pitaevskii equation; quantum vortex

• Czasopismo: Open Physics
• Rocznik: 2015
• Tom: 13
• Numer: 1

Daty

otrzymano

2015-03-21

zaakceptowano

2015-09-11

online

2015-10-26

Twórcy

autor

Anatoly P. Ivashin

• A.I. Akhiezer Institute for Theoretical Physics,
  NSC “Kharkiv Institute of Physics and Technology” 1, Akademichna
  Str., Kharkiv UA-61108, Ukraine
• Technology” 1, Akademichna Str., Kharkiv UA-61108, Ukraine

autor

Yuri M. Poluektov

• A.I. Akhiezer Institute for Theoretical Physics,
  NSC “Kharkiv Institute of Physics and Technology” 1, Akademichna
  Str., Kharkiv UA-61108, Ukraine

Bibliografia

• [1] L.P. Pitaevskii, JETP 40, 646 (1961).
• [2] E.P. Gross, Nuovo Cimento 20, 454 (1961).[Crossref]
• [3] E.M. Lifshits, L.P Pitaevskii, Statistical Physics. Part.2, (Nauka,Moscow, 1978).
• [4] A.P. Ivashin and Y.M. Poluektov, Problems of atomic scienceand technology. Series: Nuclear Physic Investigations, 57, 265,(2012).
• [5] L.P. Pitaevskii, UFN, 168, 641, (1998); UFN, 176, 345, (2006).
• [6] B.B. Kadomtsev and M.B. Kadomtsev, UFN, 167, 649, (1997).
• [7] C.J. Pethick, H. Smith, Bose-Einstein Condensation in DiluteGases, 2nd edn., (Cambridge University Press, USA, 2008).
• [8] L. Pitaevskii, S. Stringari, Bose-Einstein Condensation, (OxfordUniversity Press, USA, 2003).
• [9] A.E. Leanhardt at al., Phys. Rev. Lett. 89, 190403 (1-4), (2002).[Crossref]
• [10] Y. Shin at al., Phys. Rev. Lett. 93, 160406 (1-4), (2004).[Crossref]
• [11] C.J.Myat, E.A. Burt, R.W. Ghrist, E.A. Cornell, C.E.Wieman, Phys.Rev. Lett. 78, 586, (1997).[Crossref]
• [12] D.M. Stamper-Kurn at al., Phys. Rev. Lett. 80, 2027, (1998).
• [13] M.R. Matthews at al., Phys. Rev. Lett. 83, 2498, (1999).[Crossref]
• [14] T. Ohmi and K.Machida, J. Phys. Soc. Jpn 67, No. 6, 1822, (1998).[Crossref]
• [15] T.L. Ho and V.B. Shenoy, Phys. Rev. Lett. 77, 3276, (1996).[Crossref]
• [16] T.L. Ho, Phys. Rev. Lett. 81, 742, (1998).[Crossref]
• [17] J.J.Garcia-Ripoll and V.M. Perez-Garcia, Phys. Rev. A 62, 033601,(2000).[Crossref]
• [18] A.L. Fetter and A.A. Svidzinsky, J. Phys. Condens. Matter 13,R135, (2001).[Crossref]
• [19] K. Kasamatsu, M. Tsubota, M. Ueda, Int. J.Mod. Phys. B 19, 1835,(2005).[Crossref]
• [20] G. Catelani and E.A. Yuzbashyan, Phys. Rev. A 81, 033629,(2010).[Crossref]
• [21] M. Eto at al., Phys. Rev. A 83, 063603, (2011).[Crossref]
• [22] P. Mason, Phys. Rev. A 88, 043608, (2013).[Crossref]
• [23] S. Ishino, M. Tsubota, H. Takeuchi, J. LowTemp. Phys.B171, 429,(2013).
• [24] M. Brtka, A. Gammal, and B. A. Malomed, Phys. Rev. A 82,053610, (2010).[Crossref]

Identyfikatory

DOI

10.1515/phys-2015-0036