We propose to use subwavelength confinement of light associated with the near field of plasmonic systems to create nanoscale optical lattices for ultracold atoms. Our approach combines the unique coherence properties of isolated atoms with the subwavelength manipulation and strong light-matter interaction associated with nanoplasmonic systems. It allows one to considerably increase the energy scales in the realization of Hubbard models and to engineer effective long-range interactions in coherent and dissipative many-body dynamics. Realistic imperfections and potential applications are discussed.We propose to use subwavelength confinement of light associated with the near field of plasmonic systems to create nanoscale optical lattices for ultracold atoms. Our approach combines the unique coherence properties of isolated atoms with the subwavelength manipulation and strong light-matter interaction associated with nanoplasmonic systems. It allows one to considerably increase the energy scales in the realization of Hubbard models and to engineer effective long-range interactions in coherent and dissipative many-body dynamics. Realistic imperfections and potential applications are discussed.

arXiv:1208.6293Physical Review LettersDec 6, 2012134 citations

Controlling the Interactions of Ultracold Atoms Using Anharmonic Optical Potentials

Jessie Hirtenstein

Bulletin of the American Physical SocietyOct 4, 20140 citations

Plasmonically tailored micropotentials for ultracold atoms

Christian Stehle, H. Bender, Claus Zimmermann +3 more

Nature PhotonicsJul 24, 201192 citations

Engineering quantum magnetism in one-dimensional trapped Fermi gases with p -wave interactions

Lijun Yang, Xi‐Wen Guan, Xiaoling Cui

The highly controllable ultracold atoms in a one-dimensional (1D) trap provide a new platform for the ultimate simulation of quantum magnetism. In this regard, the N\'eel antiferromagnetism and the itinerant ferromagnetism are of central importance and great interest. Here we show that these magnetic orders can be achieved in the strongly interacting spin-1/2 trapped Fermi gases with additional $p$ -wave interactions. In this strong-coupling limit, the 1D trapped Fermi gas exhibits an effective Heisenberg spin $XXZ$ chain in the anisotropic $p$ -wave scattering channels. For a particular $p$ -wave attraction or repulsion within the same species of fermionic atoms, the system displays ferromagnetic domains with full spin segregation or the antiferromagnetic spin configuration in the ground state. Such engineered magnetisms are likely to be probed in a quasi-1D trapped Fermi gas of $^{40}\mathrm{K}$ atoms with very close $s$ -wave and $p$ -wave Feshbach resonances.The highly controllable ultracold atoms in a one-dimensional (1D) trap provide a new platform for the ultimate simulation of quantum magnetism. In this regard, the N\'eel antiferromagnetism and the itinerant ferromagnetism are of central importance and great interest. Here we show that these magnetic orders can be achieved in the strongly interacting spin-1/2 trapped Fermi gases with additional $p$-wave interactions. In this strong-coupling limit, the 1D trapped Fermi gas exhibits an effective Heisenberg spin $XXZ$ chain in the anisotropic $p$-wave scattering channels. For a particular $p$-wave attraction or repulsion within the same species of fermionic atoms, the system displays ferromagnetic domains with full spin segregation or the antiferromagnetic spin configuration in the ground state. Such engineered magnetisms are likely to be probed in a quasi-1D trapped Fermi gas of $^{40}\mathrm{K}$ atoms with very close $s$-wave and $p$-wave Feshbach resonances.

arXiv:1511.09377Physical Review AMay 31, 201632 citations

Quantum tunneling of ultracold atoms in optical traps

Jianhua, Wu, Qi +4 more

物理学前沿：英文版Jan 1, 20140 citations

p

-wave interactions. In this strong-coupling limit, the 1D trapped Fermi gas exhibits an effective Heisenberg spin

XXZ

chain in the anisotropic

p

-wave scattering channels. For a particular

p

-wave attraction or repulsion within the same species of fermionic atoms, the system displays ferromagnetic domains with full spin segregation or the antiferromagnetic spin configuration in the ground state. Such engineered magnetisms are likely to be probed in a quasi-1D trapped Fermi gas of

^{40}\mathrm{K}

atoms with very close

s

-wave and

p

-wave Feshbach resonances.