523 citations · 5.8k across the 167 of their papers we have counts for
92 papers · 1 filter
Observation of -symmetry ultralong-range Rydberg molecules
Matthew T. Eiles, Aleksandr Zaitsev, Dominik Dorer +5
We observe weakly-bound -symmetry electronic states in the spectroscopy of Rb+Rb() ultralong-range Rydberg molecules. We detect these molecul…
Green's function treatment of Rydberg molecules with spins
Chris H. Greene, Matthew T. Eiles
The determination of ultra-long-range molecular potential curves has been reformulated using the Coulomb Greens function to give a solution in terms of the roots of an analytical d…
Wigner Time Delay in Photoionization: A 1D Model Study
Karim I. Elghazawy, Chris H. Greene
In scattering theory, the Wigner-Smith time delay, calculated through a phaseshift derivative or its multichannel generalization, has been demonstrated to measure the amount of del…
Coherent control phase lag across doubly-excited atomic strontium resonances in an interference scheme
Yimeng Wang, Chris H. Greene
Accurate calculations of phase lag associated with coherent control where an excited system decays into more than one product channel have recently been reported for atomic barium…
Unified treatment of resonant and non-resonant mechanisms in dissociative recombination: benchmark study of CH
Joshua Forer, Dávid Hvizdoš, Xianwu Jiang +3
The theoretical approach developed here treats uniformly the direct and indirect mechanisms of dissociative recombination (DR) in a diatomic ion. The present theory is based on ele…
-wave Efimov physics implications at unitarity
Yu-Hsin Chen, Chris H. Greene
Equal mass fermionic trimers with two different spin components near the unitary limit are shown to possess a universal van der Waals bound or resonance state near -wave unitari…
Triatomic Photoassociation in an Ultracold Atom-Molecule Collision
Ahmed A. Elkamshishy, Chris H. Greene
Ultracold collisions of neutral atoms and molecules have been of great interest since experimental advances enabled the cooling and trapping of such species. This study is a theore…
Three and four identical fermions near the unitary limit
Michael D. Higgins, Chris H. Greene
This work analyzes the three and four equal-mass fermionic systems near and at the - and -wave unitary limits using hyperspherical methods. The unitary regime addressed here…
Analyzing the Rydberg-based omg architecture for Yb nuclear spins
Neville Chen, Lintao Li, William Huie +4
Neutral alkaline earth(-like) atoms have recently been employed in atomic arrays with individual readout, control, and high-fidelity Rydberg-mediated entanglement. This emerging pl…
Multichannel photoelectron phase lag across atomic barium autoionizing resonances
Yimeng Wang, Chris H. Greene
Phase lag associated with coherent control where an excited system decays into more than one product channel has been subjected to numerous investigations. Although previous theore…
Efimov physics implications at -wave fermionic unitarity
Yu-Hsin Chen, Chris H. Greene
Efimov physics at -wave unitarity for three equal mass fermions in multiple symmetries interacting via Lennard-Jones potentials is predicted to modify the long range interaction…
Resonant control of photoelectron directionality by interfering one- and two-photon pathways
Yimeng Wang, Chris H. Greene
Coherent control of interfering one- and two-photon processes has for decades been the subject of research to achieve the redirection of photocurrent. The present study develops tw…
Spectroscopy of Rydberg States in Erbium using Electromagnetically Induced Transparency
A. Trautmann, M. J. Mark, P. Ilzhöfer +6
We present a study of the Rydberg spectrum in \ts{166}Er for series connected to the , and ionic core states using an all-optical detect…
Orbital Variational Adiabatic Hyperspherical Method Applied to Bose-Einstein Condensates
Hyunwoo Lee, Chris H. Greene
A variational basis set motivated by mean-field theory is utilized to describe the Bose-Einstein condensate within the adiabatic hyperspherical coordinate framework. The simplest s…
Two-photon Above Threshold Ionization of Helium
Yimeng Wang, Chris H. Greene
Multiphoton ionization provides a clear window into the nature of electron correlations in the helium atom. In the present study, the final state energy range extends up to the reg…
Collisional spin transfer in an atomic heteronuclear spinor Bose gas
Fang Fang, Joshua A. Isaacs, Aaron Smull +5
We observe spin transfer within a non-degenerate heteronuclear spinor atomic gas comprised of a small Li population admixed with a Rb bath, with both elements in their $…
Cross-dimensional relaxation of Li-Rb atomic gas mixtures in a spherical-quadrupole magnetic trap
Fang Fang, Shun Wu, Aaron Smull +4
We measure the interspecies interaction strength between Li and Rb atoms through cross-dimensional relaxation of two-element gas mixtures trapped in a spherical quadrupo…
Low-Energy Scattering Properties of Ground-State and Excited-State Positronium Collisions
Michael D. Higgins, Kevin M. Daily, Chris H. Greene
Low-energy elastic and inelastic scattering in the Ps(1)-Ps(2) channel is treated in a four-body hyperspherical coordinate calculation. Adiabatic potentials are calculated fo…
Non-adiabatic molecular association in thermal gases driven by radio-frequency pulses
P. Giannakeas, L. Khaykovich, Jan-Michael Rost +1
The molecular association process in a thermal gas of Rb is investigated where the effects of the envelope of the radio-frequency field are taken into account. For experimen…
Universal temperature dependence of the ion-neutral-neutral three-body recombination rate
Jesús Pérez-Ríos, Chris H. Greene
A classical approach based on hyperspherical coordinates is used to derive a first principle formulation of the the ion-neutral-neutral three-body recombination rate, A + A + A…
Creation and observation of a ghost trilobite chemical bond
Matthew T. Eiles, Zhengjia Tong, Chris H. Greene
The "trilobite" type of molecule, predicted in 2000 and observed experimentally in 2015, arises when a Rydberg electron exerts a weak attractive force on a neutral ground state ato…
Extreme correlation and repulsive interactions in highly excited atomic anions
Matthew T. Eiles, Chris H. Greene
At high energies, single-photon photodetachment of alkali negative ions populates final states where both the ejected electron and the residual valence electron possess high angula…
Renormalized contact interaction in degenerate unitary Bose gases
Yijue Ding, Chris H. Greene
We renormalize the two-body contact interaction based on the exact solution of two interacting particles in a harmonic trap. This renormalization extends the validity of the contac…
Coupled square well model and Fano-phase correspondence
Bin Yan, Chris H. Greene
This paper investigates the Fano-Feshbach resonance with a two-channel coupled-square-well model in both the frequency and time domains. This systems is shown to exhibit Fano lines…