TY - JOUR
T1 - Pendular trapping conditions for ultracold polar molecules enforced by external electric fields
JF - Physical Review A
Y1 - 2017
A1 - Ming Li
A1 - Alexander Petrov
A1 - Constantinos Makrides
A1 - Eite Tiesinga
A1 - Svetlanta Kotochigova
AB -
We theoretically investigate trapping conditions for ultracold polar molecules in optical lattices, when external magnetic and electric fields are simultaneously applied. Our results are based on an accurate electronic-structure calculation of the polar 23Na40K polar molecule in its absolute ground state combined with a calculation of its rovibrational-hyperfine motion. We find that an electric field strength of 5.26(15) kV/cm and an angle of 54.7∘ between this field and the polarization of the optical laser lead to a trapping design for 23Na40K molecules where decoherences due laser-intensity fluctuations and fluctuations in the direction of its polarization are kept to a minimum. One standard deviation systematic and statistical uncertainties are given in parenthesis. Under such conditions pairs of hyperfine-rotational states of v=0 molecules, used to induce tunable dipole-dipole interactions between them, experience ultrastable, matching trapping forces.
VL - 95
U4 - 063422
UR - https://arxiv.org/abs/1703.03839
CP - 6
U5 - 10.1103/PhysRevA.95.063422
ER -