TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.11.6.100
TI  - Optical lattice with spin-dependent sub-wavelength barriers
PY  - 2021/12/02
UR  - https://scipost.org/SciPostPhys.11.6.100
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 11
IS  - 6
SP  - 100
A1  - Gvozdiovas, Edvinas
AU  - Račkauskas, Povilas
AU  - Juzeliūnas, Gediminas
AB  - We analyze a tripod atom light coupling scheme characterized by two dark states playing the role of quasi-spin states. It is demonstrated that by properly configuring the coupling laser fields, one can create a lattice with spin-dependent sub-wavelength barriers. This allows to flexibly alter the atomic motion ranging from atomic dynamics in the effective brick-wall type lattice to free motion of atoms in one dark state and a tight binding lattice with a twice smaller periodicity for atoms in the other dark state. Between the two regimes, the spectrum undergoes significant changes controlled by the laser fields. The tripod lattice can be produced using current experimental techniques. The use of the tripod scheme to create a lattice of degenerate dark states opens new possibilities for spin ordering and symmetry breaking.
ER  -

@Article{10.21468/SciPostPhys.11.6.100,
	title={{Optical lattice with spin-dependent sub-wavelength barriers}},
	author={Edvinas Gvozdiovas and Povilas Račkauskas and Gediminas Juzeliūnas},
	journal={SciPost Phys.},
	volume={11},
	pages={100},
	year={2021},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.11.6.100},
	url={https://scipost.org/10.21468/SciPostPhys.11.6.100},
}