2000 character limit reached
Supercurrent-carrying supersolid in spin-orbit-coupled Bose-Einstein condensates
Published 23 Nov 2023 in cond-mat.quant-gas | (2311.13786v2)
Abstract: One of brilliant achievements in spin-orbit-coupled Bose-Einstein condensates is the discovery and observation of the supersolid stripe states. So far, all studied supersolid stripe states do not carry supercurrent. In this work, we reveal the existence of supercurrent-carrying supersolids in spin-orbit-coupled Bose-Einstein condensates. The supersolid family has a parabolic-like dispersion relation and carries supercurrent which is proportional to the quasimomentum. Energetic and dynamical instabilities can break supercurrent-carrying ability of this supersolid family. An insightful interpretation of the dynamical instability of supercurrent-carrying supersolids from the pure plane-wave phase is provided.
- H. Zhai, Degenerate quantum gases with spin–orbit coupling: a review, Rep. Prog. Phys. 78, 026001 (2015).
- Y. J. Lin, K. Jimenez-Garcia, and I. B. Spielman, Spin-orbit-coupled Bose-Einstein condensates, Nature (London) 471, 83 (2011).
- Q. Zhu, C. Zhang, and B. Wu, Exotic superfluidity in spin-orbit coupled Bose-Einstein condensates, Eur. phys. Lett. 100, 50003 (2012).
- Y. Li, L. P. Pitaevskii, and S. Stringari, Quantum Tricriticality and Phase Transitions in Spin-Orbit Coupled Bose-Einstein Condensates, Phys. Rev. Lett. 108, 225301 (2012).
- C.-J. Wu, I. Mondragon-Shem, and X.-F. Zhou, Unconventional Bose–Einstein Condensations from Spin-Orbit Coupling, Chin. Phys. Lett. 28, 097102 (2011).
- T. Ozawa, L. P. Pitaevskii, and S. Stringari, Supercurrent and dynamical instability of spin-orbit-coupled ultracold Bose gases, Phys. Rev. A 87, 063610 (2013).
- T.-L. Ho and S. Zhang, Bose-Einstein Condensates with Spin-Orbit Interaction, Phys. Rev. Lett. 107, 150403 (2011).
- H. Lyu and Y. Zhang, Spin-orbit-coupling-assisted roton softening and superstripes in a Rydberg-dressed Bose-Einstein condensate, Phys. Rev. A 102, 023327 (2020).
- A. Gallemàand L. Santos, Superfluid properties of a honeycomb dipolar supersolid, Phys. Rev. A 106, 063301 (2022).
- S. Wessel and M. Troyer, Supersolid Hard-Core Bosons on the Triangular Lattice, Phys. Rev. Lett. 95, 127205 (2005).
- S. Saccani, S. Moroni, and M. Boninsegni, Excitation Spectrum of a Supersolid, Phys. Rev. Lett. 108, 175301 (2012).
- L. Pitaevskii and S. Stringari, Bose–Einstein Condensation and Superfluidity, 1st ed. (Oxford University Press, Oxford, England, 2016).
- B. Wu and Q. Niu, Landau and dynamical instabilities of the superflow of Bose-Einstein condensates in optical lattices, Phys. Rev. A 64, 061603 (2001).
- Y. Zhang, Z. Gui, and Y. Chen, Nonlinear dynamics of a spin-orbit-coupled Bose-Einstein condensate, Phys. Rev. A 99, 023616 (2019).
- G. I. Martone, Quantum Phases and Collective Excitations of a Spin-Orbit-Coupled Bose–Einstein Condensate in a One-Dimensional Optical Lattice, J. Low Temp. Phys. 189, 262 (2017).
- S. Mardonov, M. Modugno, and E. Y. Sherman, Dynamics of Spin-Orbit Coupled Bose-Einstein Condensates in a Random Potential, Phys. Rev. Lett. 115, 180402 (2015a).
- G. I. Martone, Y. Li, and S. Stringari, Approach for making visible and stable stripes in a spin-orbit-coupled Bose-Einstein superfluid, Phys. Rev. A 90, 041604 (2014).
- C. Pethick and H. Smith, Bose-Einstein Condensation in Dilute Gases, 2nd ed. (Cambridge University Press, Cambridge, England, 2008).
- Z. Chen and B. Wu, Stability of Bose-Einstein condensates in two-dimensional optical lattices, Phys. Rev. A 81, 043611 (2010).
- B. Wu and Q. Niu, Superfluidity of Bose–Einstein condensate in an optical lattice: Landau–Zener tunnelling and dynamical instability, New J. Phys. 5, 104 (2003).
- V. V. Konotop and M. Salerno, Modulational instability in Bose-Einstein condensates in optical lattices, Phys. Rev. A 65, 021602 (2002).
- V. A. Brazhnyi and V. V. Konotop, Theory of nonlinear matter waves in optical lattices, Mod. Phys. Lett. B 18, 627 (2004).
- Y. V. Kartashov, B. A. Malomed, and L. Torner, Solitons in nonlinear lattices, Rev. Mod. Phys. 83, 247 (2011).
- M. Modugno, C. Tozzo, and F. Dalfovo, Role of transverse excitations in the instability of Bose-Einstein condensates moving in optical lattices, Phys. Rev. A 70, 043625 (2004).
Paper Prompts
Sign up for free to create and run prompts on this paper using GPT-5.
Top Community Prompts
Collections
Sign up for free to add this paper to one or more collections.