Engineering quantum control with optical transitions induced by twisted light fields

Year: 2023

Authors: Zanon-Willette T., Impens F., Arimondo E., Wilkowski D., Taichenachev AV., Yudin VI.

Autors Affiliation: Univ PSL, Sorbonne Univ, LERMA, CNRS,Observ Paris, F-75005 Paris, France; Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, Brazil; Univ Pisa, Dipartimento Fis E Fermi, Lgo B Pontecorvo 3, I-56127 Pisa, Italy; INO CNR, Via G Moruzzi 1, I-56124 Pisa, Italy; Nanyang Technol Univ, Natl Univ Singapore, Sorbonne Univ, Univ Cote Azur,MajuLab,Int Res Lab IRL 3654, Singapore, Singapore; Natl Univ Singapore, Ctr Quantum Technol, Singapore 117543, Singapore; Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 637371, Singapore; Novosibirsk State Univ, Ul Pirogova 2, Novosibirsk 630090, Russia; Russian Acad Sci, Inst Laser Phys, Siberian Branch, Prosp Akad Lavrent Eva 15B, Novosibirsk 630090, Russia; Novosibirsk State Tech Univ, Prosp Karla Marksa 20, Novosibirsk 630073, Russia.

Abstract: A form of quantum control is proposed by applying twisted light, also known as optical vortex beams, to drive ultranarrow atomic transitions in neutral Ca, Mg, Yb, Sr, Hg, and Cd bosonic isotopes. This innovative all-optical spectroscopic method introduces spatially tailored electric and magnetic fields to fully rewrite atomic selection rules, reducing simultaneously probe-induced frequency shifts and additional action of external ac and dc field distortions. A twisted-light focused probe beam produces strong longitudinal electric and magnetic fields along the laser propagation axis, which opens the 1S0 -> 3P0 doubly forbidden clock transition with a high E1M1 two-photon excitation rate. This long-lived clock transition is thus immune to nonscalar electromagnetic perturbations. Zeeman components of the M2 magnetic quadrupole 1S0 -> 3P2 transition considered for quantum computation and simulation are now selectively driven by transverse or longitudinal field gradients with vanishing electric fields. These field gradients are manipulated by the mutual action of orbital and spin angular momentum of the light beam and are used in presence of tunable vector and tensor polarizabilities. A combination of these two different twisted-light induced clock transitions within a single quantum system, at the same magic wavelength and in presence of a common thermal environment, significantly reduces systematic uncertainties. Furthermore, it generates an optical synthetic frequency which efficiently limits the blackbody radiation shift and its variations at room temperature. Engineering light-matter interaction by optical vortices merged with composite pulses will ultimately benefit experimental atomic and molecular platforms targeting an optimal coherent control of quantum states, reliant quantum simulation, novel approaches to atomic interferometry, and precision tests of fundamental theories in physics and high-accuracy optical metrology.

Journal/Review: PHYSICAL REVIEW A

Volume: 108 (4)      Pages from: 43513-1  to: 43513-11

More Information: selectively driven by transverse or longitudinal field gradients manipulated by the mutual action of orbital and spin presence of tunable vector and tensor polarizabilities. induced clock transitions within a single quantum system, common thermal environment, significantly reduces optical synthetic frequency which efficiently limits the temperature. Engineering light-matter interaction by optical benefit experimental atomic and molecular platforms reliant quantum simulation, novel approaches to atomic theories in physics and high-accuracy optical metrology. accuracy for quantum metrology. Electric-quadrupole or oc-tupole transitions have been proposed as potential highly accurate clocks searching for ultralight dark matter and for testing fundamental theories beyond the standard model
DOI: 10.1103/PhysRevA.108.043513

Citations: 4
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