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- National University of SingaporeSG344 papers
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35 papers · 1 filter
Magic wavelength at 477 nm for the strontium clock transition
Xinyuan Ma, Swarup Das, David Wilkowski +1
We report the experimental measurement of a magic wavelength at 476.82362(8) nm for the 88Sr clock transition. The magic wavelength is determined through AC-Stark shift spectroscop…
Fault-tolerant hyper-Ramsey spectroscopy of optical clock transitions with dynamical decoupling
B. Ilikj, T. Zanon-Willette, D. Wilkowski +2
A probe laser field that interrogates an atomic transition also shifts it. Although Hyper-Ramsey (HR) spectroscopy was developed to mitigate these light-induced frequency shifts, t…
Super-resolution optical trapping of multiple cold atoms
Kelvin Lim, Vincent Mancois, Haijun Wu +2
Arrays of optical tweezers form the backbone of neutral atoms analog and digital quantum processors. However, the inter-trap distance remains generally much larger than the size of…
Experimental realization of a SU(3) color-orbit coupling in an ultracold gas
Chetan S. Madasu, Chirantan Mitra, Lucas Gabardos +6
Spin-orbit interaction couples the spin of a particle to its motion and leads to spin-induced transport phenomena such as spin-Hall effects and Chern insulators. In this work, we e…
Engineering quantum control with twisted-light fields induced optical transitions
T. Zanon-Willette, F. Impens, E. Arimondo +3
A novel form of quantum control is proposed by applying twisted-light also known as optical vortex beams to drive ultra-narrow atomic transitions in neutral Ca, Mg, Yb, Sr, Hg and…
Single atom in a superoscillatory optical trap
Hamim Mahmud Rivy, Syed A. Aljunid, Emmanuel Lassalle +2
Optical tweezers have become essential tools to manipulate atoms or molecules at a single particle level. However, using standard diffracted-limited optical systems, the transverse…