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The periodic changes in physical and chemical properties of the chemical elements is caused by the periodic change of the ionization energies. The ionization energy of each element is constant and this manifests itself in the periodic table. However, we show that the ionization energies can be dramatically changed, when atoms are placed in a photonic crystal consisting of materials with a highly tunable refractive index and voids. The tunability of these materials gives rise to the tunability of the ionization energies over a wide range. This allows one to come beyond the limitations put on by the periodic table on physical and chemical processes, and can open up new horizons in synthesizing exceptional chemical compounds that could be used in pharmaceutical and other medical-related activities.
We propose a nanophotonic platform for topological quantum optics. Our system is composed of a two-dimensional lattice of non-linear quantum emitters with optical transitions embedded in a photonic crystal slab. The emitters interact through the guid
We obtain a general result for the Lamb shift of excited states of multi-level atoms in inhomogeneous electromagnetic structures and apply it to study atomic hydrogen in inverse-opal photonic crystals. We find that the photonic-crystal environment ca
We demonstrate the controlled creation of a $mathrm{^{174}Yb^{2+}}$ ion by photo-ionizing $mathrm{^{174}Yb^+}$ with weak continuous-wave lasers at ultraviolet wavelengths. The photo-ionization is performed by resonantly exciting transitions of the $m
Emission and absorption of light lie at the heart of light-matter interaction. Although the emission and absorption rates are regarded as intrinsic properties of atoms and molecules, various ways to modify these rates have been sought in critical app
Quantum theory predicts that entanglement can also persist in macroscopic physical systems, albeit difficulties to demonstrate it experimentally remain. Recently, significant progress has been achieved and genuine entanglement between up to 2900 atom