Observation of Magnetically Induced Trap Loss of Ultracold Thulium Atoms
1 Lebedev Physical Institute RAS, 119991, 53 Leninskiy Ave, Moscow, Russia
2 Moscow Institute of Physics and Technology 141700, 9 Institutsky per., Dolgoprudny, Russia
3 Russian Quantum Center 143025, 100 Novaya St., Skolkovo, Moscow, Russia
a Corresponding author: email@example.com
Published online: 25 September 2015
We report the observation of influence of homogeneous magnetic field on an optical lattice losses of ultracold thulium atoms. The atomic cloud temperature was T = 15 mK. The dependence of trap population on a value of magnetic field has a broad resonance in the low-field region with a center at B = 0.4 G. We also have measured a decrease of optical lattice lifetime in a presence of resonance magnetic field. The observed magnetically-induced trap losses are assumed to be Feshbach resonance which is a dependence of an atomic scattering length on magnetic field.
Key words: ultracold atoms / Feshbach resonance
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