Rydberg excitation
WebNov 18, 2024 · In this article, effects of the strong long-range interaction of Rydberg atoms on the Autler–Townes splitting spectrum are investigated. Preliminary results are obtained for various excitation times and Rydberg atom densities. The 2S1/2 and 2P1/2 levels of lithium-7 are coupled with strong laser field and probed by another laser via excitation …
Rydberg excitation
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The only truly stable state of a hydrogen-like atom is the ground state with n = 1. The study of Rydberg states requires a reliable technique for exciting ground state atoms to states with a large value of n. Electron impact excitation Much early experimental work on Rydberg atoms relied on the use of collimated beams of … See more A Rydberg atom is an excited atom with one or more electrons that have a very high principal quantum number, n. The higher the value of n, the farther the electron is from the nucleus, on average. Rydberg atoms have … See more An atom in a Rydberg state has a valence electron in a large orbit far from the ion core; in such an orbit, the outermost electron feels an almost hydrogenic, Coulomb See more Quantum-mechanically, a state with abnormally high n refers to an atom in which the valence electron(s) have been excited into a formerly unpopulated electron orbital with … See more Precision measurements of trapped Rydberg atoms The radiative decay lifetimes of atoms in metastable states to the ground state are important to … See more The existence of the Rydberg series was first demonstrated in 1885 when Johann Balmer discovered a simple empirical formula for the wavelengths of light associated with transitions in atomic hydrogen. Three years later, the Swedish physicist See more The large separation between the electron and ion-core in a Rydberg atom makes possible an extremely large electric dipole moment, d. There is an energy associated with the presence of … See more A simple 1/r potential results in a closed Keplerian elliptical orbit. In the presence of an external electric field Rydberg atoms can obtain very large See more WebJun 14, 2024 · We report the measurement of the Rydberg excitation spectrum by two-photon process in ultracold 40K Fermi gases. Two different methods are employed to …
WebMar 7, 2024 · We investigated the Rydberg-state excitation process of a hydrogen atom subjected to spatially homogeneous and inhomogeneous laser fields by means of ab initio calculations. It is found that, comparing with atoms exposed to spatially homogeneous laser fields, the excitation probability decreases and the electron tends to occupy the states … WebJan 22, 2009 · Rydberg blockade between neutral atoms held in traps several microns apart has now been demonstrated and exploited to create a quantum-entangled state. Both feats are considered significant steps in the quest for quantum computing with neutral atoms. Blockade refers to the inhibition of excitation in one part of a system by the prior …
WebThe proposed scheme [12] operates by relative intensity modulation of two lasers used in Rydberg excitation. Bypassing the conventional p-gap-p schemes [1,6,7], the operation features continuous laser shielding of the Rydberg atoms from the environment noise. The optical depth is optimized and the experiment is made simpler by the complete ... Webwith the spherically symmetric Rydberg excitation, fermions must overcome the rotational barrier to occupy the s, p,andd shells of the Rydberg atom leading to a shell structure whose occupation (shown in the inset) is determined by a Pauli-enforced Rydberg rotational blockade. and rotational quantum numbers k, l, and m. While an
WebSep 7, 2024 · Rydberg state excitation (RSE) of different atoms in elliptically polarized strong 800 nm laser fields is investigated experimentally, and the results are compared with calculations of the strong ...
http://vergil.chemistry.gatech.edu/notes/excd/node2.html astra sedan 2004 1.8WebIn one-dimensional tweezer arrays, we demonstrate efficient loading and cooling of potassium atoms down to 4 uK based on molasses cooling in 0.25 mK traps followed by adiabatic trap depth ramping to 40 uK, and we show evidence of coherent two-photon excitation of the atoms from their atomic ground state to Rydberg states with n = 62. astra sedan 2004WebAug 8, 2024 · Ultrafast pulsed excitation to Rydberg states We then proceed with the ultrafast coherent transfer of atoms to Rydberg orbitals. Although CW laser technology … astra sedan 2005WebIn the case when a single Rydberg atom has to be excited out of an ensemble of N atoms, ARP has a crucial advantage over the π pulse. The π pulse excites the ensemble from a collective ground state to a symmetric collective excited state with one atom in the Rydberg and all other atoms in the ground state. astra sedan 2004 tabela fipeWebCs atoms are excited directly from 6S1/2 ground state to nP3/2 (n = 70 - 100) Rydberg states with a 318.6 nm ultraviolet (UV) laser, and Rydberg excitation spectra are obtained by transmission enhancement of a probe beam resonant to Cs 6S1/2, F = 4 - 6P3/2, F’ = 5 transition as partial population on F = 4 ground state are transferred to … astra sedan 2005 olx dfWebThis Rydberg residual population effect of a rare-gas atom surviving from the laser field is elaborated by the repopulation of Rydberg states via Λ-type Raman transitions joining … astra sedan 2004 2.0WebJan 31, 2024 · Abstract We study, using a combination of experiment and theory, the excitation and decay of very-high- n (n∼280–430) strontium autoionizing Rydberg states formed by near-resonant driving of the 5s2S1/2 →5p2P 1/2 core-ion transition. The branching ratio between decay through radiative transitions and through autoionization is … astra sedan 2006 fipe