Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:2003.04154 · The European Physical Journal D

Effective triangular ladders with staggered flux from spin-orbit coupling in 1D optical lattices

Josep Cabedo, Joan Claramunt, J. Mompart, V. Ahufinger, Alessio Celi

Published Jun 1, 2020• 14 citations
arXivHTMLPDF
DOI
10.1140/epjd/e2020-10129-1

Related papers

Staggered flux state and charge order in a 2-leg triangular ladder system

Lihua Pan, J. An, Can Gong

The European Physical Journal B•Sep 1, 2008•0 citations

Spin-orbit coupled Fermi atoms loaded in an optical ladder lattice

Feixiang Guo, Xiaofan Zhou, Hua Zhao

JOURNAL OF SHENZHEN UNIVERSITY SCIENCE AND ENGINEERING•Jan 1, 2015•0 citations

Phase diagram of 1D spin-orbit coupled Fermi gases in optical lattices

Chunlei Qu, Ming Gong, Chuanwei Zhang

Bulletin of the American Physical Society•Mar 19, 2013•0 citations

Interacting bosons on the triangular lattice subject to a staggered flux

Dian-Cheng Zhang, Shi-Jie Yang

Physica A Statistical Mechanics and its Applications•Jul 31, 2026•0 citations

Realization of a Cross-Linked Chiral Ladder with Neutral Fermions in a 1D Optical Lattice by Orbital-Momentum Coupling

Jin Hyoun Kang, Jeong Ho Han, Yong-il Shin

We report the experimental realization of a cross-linked chiral ladder with ultracold fermionic atoms in a 1D optical lattice. In the ladder, the legs are formed by the orbital states of the optical lattice and the complex interleg links are generated by the orbital-changing Raman transitions that are driven by a moving lattice potential superimposed onto the optical lattice. The effective magnetic flux per ladder plaquette is tuned by the spatial periodicity of the moving lattice, and the chiral currents are observed from the asymmetric momentum distributions of the orbitals. The effect of the complex cross-links is demonstrated in quench dynamics by measuring the momentum dependence of the interorbital coupling strength. We discuss the topological phase transition of the chiral ladder system for the variations of the complex cross-links.

arXiv:1807.01444•Physical Review Letters•Oct 12, 2018•57 citations

Chiral spin condensation in a one-dimensional optical lattice

Ying-Hai Wu, Xiaopeng Li, S. Das Sarma

We study a spinor (two-component) Bose gas confined in a one-dimensional double-valley optical lattice which has a double-well structure in momentum space. Based on field theory analysis, it is found that spinor bosons in the double-valley band may form a spin-charge mixed chiral spin quasicondensate under certain conditions. Our numerical calculations in a concrete $\ensuremath{\pi}$-flux triangular ladder system confirm the robustness of the chiral spin order against interactions and quantum fluctuations. This exotic atomic Bose-Einstein condensate exhibits spatially staggered spin loop currents without any charge dynamics despite the complete absence of spin-orbit coupling in the system, creating an interesting approach to atom spintronics. The entanglement entropy scaling allows us to extract conformal-field-theory central charge and establish the low-energy effective field theory for the chiral spin condensate as a two-component Luttinger liquid. Our predictions should be detectable in atomic experiments through spin-resolved time-of-flight techniques.

arXiv:1702.01439•Physical review. B./Physical review. B•Dec 7, 2017•0 citations
We report the experimental realization of a cross-linked chiral ladder with ultracold fermionic atoms in a 1D optical lattice. In the ladder, the legs are formed by the orbital states of the optical lattice and the complex interleg links are generated by the orbital-changing Raman transitions that are driven by a moving lattice potential superimposed onto the optical lattice. The effective magnetic flux per ladder plaquette is tuned by the spatial periodicity of the moving lattice, and the chiral currents are observed from the asymmetric momentum distributions of the orbitals. The effect of the complex cross-links is demonstrated in quench dynamics by measuring the momentum dependence of the interorbital coupling strength. We discuss the topological phase transition of the chiral ladder system for the variations of the complex cross-links.
We study a spinor (two-component) Bose gas confined in a one-dimensional double-valley optical lattice which has a double-well structure in momentum space. Based on field theory analysis, it is found that spinor bosons in the double-valley band may form a spin-charge mixed chiral spin quasicondensate under certain conditions. Our numerical calculations in a concrete $\ensuremath{\pi}$-flux triangular ladder system confirm the robustness of the chiral spin order against interactions and quantum fluctuations. This exotic atomic Bose-Einstein condensate exhibits spatially staggered spin loop currents without any charge dynamics despite the complete absence of spin-orbit coupling in the system, creating an interesting approach to atom spintronics. The entanglement entropy scaling allows us to extract conformal-field-theory central charge and establish the low-energy effective field theory for the chiral spin condensate as a two-component Luttinger liquid. Our predictions should be detectable in atomic experiments through spin-resolved time-of-flight techniques.