Skip to main content
SpringerLink
Log in

Incommensurability Effects on Dipolar Bosons in Optical Lattices

  • Published:
Journal of Low Temperature Physics Aims and scope Submit manuscript

Abstract

We present a study that investigated a quantum dipolar gas in continuous space where a potential lattice was imposed. Employing exact quantum Monte Carlo techniques, we analysed the ground-state properties of the scrutinised system, varying the lattice depth and the dipolar interaction. For system densities corresponding to a commensurate filling with respect to the optical lattice, we observed a simple crystal-to-superfluid quantum phase transition, being consistent with the physics of dipolar bosons in continuous space. In contrast, an incommensurate density showed the presence of a supersolid phase. Indeed, such a result opens up the tempting opportunity to observe a defect-induced supersolidity with dipolar gases in combination with a tunable optical lattice. Finally, the stability of the condensate was analysed at finite temperature.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

  1. C. Becker, P. Soltan-Panahi, J. Kronjäger, S. Dörscher, K. Bongs, K. Sengstock, New J. Phys. 12(6), 065025 (2010)

    Article  ADS  Google Scholar 

  2. J. Sebby-Strabley, M. Anderlini, P.S. Jessen, J.V. Porto, Phys. Rev. A 73, 033605 (2006)

    Article  ADS  Google Scholar 

  3. P. Schauß, J. Zeiher, T. Fukuhara, S. Hild, M. Cheneau, T. Macrì, T. Pohl, I. Bloch, C. Gross, Science 347(6229), 1455 (2015)

    Article  ADS  Google Scholar 

  4. B. Yan, S.A. Moses, B. Gadway, J.P. Covey, K.R.A. Hazzard, A.M. Rey, D.S. Jin, J. Ye, Nature 501(7468), 521 (2013)

    Article  ADS  Google Scholar 

  5. S. Baier, M.J. Mark, D. Petter, K. Aikawa, L. Chomaz, Z. Cai, M. Baranov, P. Zoller, F. Ferlaino, arXiv:1507.03500v1

  6. M.A. Baranov, Phys. Rep. 464(3), 71 (2008)

    Article  ADS  Google Scholar 

  7. T. Lahaye, C. Menotti, L. Santos, M. Lewenstein, T. Pfau, Rep. Prog. Phys. 72(12), 126401 (2009)

    Article  ADS  Google Scholar 

  8. M. Boninsegni, N.V. Prokof’ev, Rev. Mod. Phys. 84, 759 (2012)

    Article  ADS  Google Scholar 

  9. F. Cinti, T. Macrì, W. Lechner, G. Pupillo, T. Pohl, Nat. Commun. 5 (2014)

  10. W. Lechner, D. Polster, G. Maret, P. Keim, C. Dellago, Phys. Rev. E 88, 060402 (2013)

    Article  ADS  Google Scholar 

  11. I. Danshita, D. Yamamoto, Phys. Rev. A 82, 013645 (2010)

    Article  ADS  Google Scholar 

  12. M. Boninsegni, N. Prokof’ev, Phys. Rev. Lett. 95, 237204 (2005)

    Article  ADS  Google Scholar 

  13. L. Pollet, J.D. Picon, H.P. Büchler, M. Troyer, Phys. Rev. Lett. 104, 125302 (2010)

    Article  ADS  Google Scholar 

  14. U. Bissbort, F. Deuretzbacher, W. Hofstetter, Phys. Rev. A 86, 023617 (2012)

    Article  ADS  Google Scholar 

  15. H.P. Büchler, Phys. Rev. Lett. 104, 090402 (2010)

    Article  Google Scholar 

  16. W. Lechner, F. Cinti, G. Pupillo, Phys. Rev. A 92, 053625 (2015)

  17. S. Moroni, M. Boninsegni, Phys. Rev. Lett. 113, 240407 (2014)

    Article  ADS  Google Scholar 

  18. H.P. Büchler, E. Demler, M. Lukin, A. Micheli, N. Prokof’ev, G. Pupillo, P. Zoller, Phys. Rev. Lett. 98, 060404 (2007)

    Article  Google Scholar 

  19. A.F. Andreev, I.M. Lifshitz, Sov. Phys. Jetp USSR 29(6), 1107 (1969)

    ADS  Google Scholar 

  20. D.M. Ceperley, Rev. Mod. Phys. 67, 279 (1995)

    Article  ADS  Google Scholar 

  21. M. Boninsegni, N. Prokof’ev, B. Svistunov, Phys. Rev. Lett. 96, 070601 (2006)

    Article  ADS  Google Scholar 

  22. L. Pollet, Rep. Prog. Phys. 75(9), 094501 (2012)

    Article  ADS  Google Scholar 

  23. M. Boninsegni, N.V. Prokof’ev, B.V. Svistunov, Phys. Rev. E 74(3), 036701 (2006)

    Article  ADS  Google Scholar 

  24. P. Jain, F. Cinti, M. Boninsegni, Phys. Rev. B 84, 014534 (2011)

    Article  ADS  Google Scholar 

  25. M. Plischke, B. Bergersen, Equilibrium Statistical Physics (World Scientific, 2006)

  26. E.L. Pollock, D.M. Ceperley, Phys. Rev. B 36, 8343 (1987)

    Article  ADS  Google Scholar 

  27. G.E. Astrakharchik, J. Boronat, I.L. Kurbakov, Y.E. Lozovik, Phys. Rev. Lett. 98(6), 060405 (2007)

    Article  ADS  Google Scholar 

  28. B. Spivak, S.A. Kivelson, Phys. Rev. B 70, 155114 (2004)

    Article  ADS  Google Scholar 

  29. A. Sarsa, K.E. Schmidt, W.R. Magro, J. Chem. Phys. 113(4), 1366 (2000)

    Article  ADS  Google Scholar 

  30. A.J. Leggett, Phys. Rev. Lett. 25, 1543 (1970)

    Article  ADS  Google Scholar 

  31. P. Chaikin, T. Lubensky, T. Witten, Principles of condensed matter physics (Cambridge University Press, Cambridge, 2000)

    Google Scholar 

  32. A. Filinov, N.V. Prokof’ev, M. Bonitz, Phys. Rev. Lett. 105, 070401 (2010)

    Article  ADS  Google Scholar 

  33. T. Macrì, F. Maucher, F. Cinti, T. Pohl, Phys. Rev. A 87, 061602 (2013)

    Article  ADS  Google Scholar 

  34. F. Cinti, M. Boninsegni, T. Pohl, New J. Phys. 16(3), 033038 (2014)

    Article  ADS  Google Scholar 

  35. D. Yamamoto, I. Danshita, C.A.R. Sá de Melo, Phys. Rev. A 85, 021601 (2012)

    Article  ADS  Google Scholar 

Download references

Acknowledgments

The author thanks G. Pupillo and T. Macrì for enlightening discussions.

Author information

Authors and Affiliations

  1. National Institute for Theoretical Physics (NITheP), Stellenbosch, 7600, South Africa

    Fabio Cinti

  2. Institute of Theoretical Physics, Stellenbosch University, Stellenbosch, 7600, South Africa

    Fabio Cinti

Authors
  1. Fabio Cinti
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Fabio Cinti.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Cinti, F. Incommensurability Effects on Dipolar Bosons in Optical Lattices. J Low Temp Phys 182, 153–161 (2016). https://doi.org/10.1007/s10909-015-1417-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10909-015-1417-4

Keywords

Search

Navigation