Electric field-dependent dynamic polarizability and "magic" conditions for optical trapping of polar molecules

Abstract

Selection of "magic" trapping conditions with ultracold atoms or molecules, where pairs of internal states experience identical trapping potentials, brings substantial benefits to precision measurements and quantum computing schemes. Working at such conditions could ensure that detrimental effects of inevitable inhomogeneities across an ultracold sample are significantly reduced. However, this aspect of confinement remains unexplored for ultracold polar molecules. Here, we present means to control the AC Stark shift of rotational states of ultracold polar molecules, when subjected to both trapping laser light and an external electric field. We show that both the strength and relative orientation of the two fields influence the trapping potential. In particular, we predict "magic electric field strengths" and a "magic angle", where the Stark shift is independent of the DC external field and rotational states of the molecule.

10 pages, 4 figures

References in corpus (9)

• Strongly correlated 2D quantum phases with cold polar molecules: controlling the shape of the interaction potential
• Quantum State Engineering and Precision Metrology using State-Insensitive Light Traps
• Quo vadis, cold molecules? - Editorial review
• Precision Test of Mass Ratio Variations with Lattice-Confined Ultracold Molecules
• Controlling Polar Molecules in Optical Lattices
• Experimental observation of magic-wavelength behavior in optical lattice-trapped ${}^{87}$Rb
• Magic frequencies for cesium primary frequency standard
• Prospects for application of ultracold Sr${}_2$ molecules in precision measurements
• Micromagic clock: microwave clock based on atoms in an engineered optical lattice

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