Results 21 to 30 of about 113,215 (162)
Time‐dependent coupled‐cluster theory
WIREs Computational Molecular Science, Volume 13, Issue 5, September/October 2023., 2023 This review outlines the history and recent developments of coupled‐cluster theory for quantum dynamics with emphasis on laser‐induced dynamics. Vibrational as well as electronic coupled‐cluster theories are discussed along with applications to weak‐ and strong‐field processes.
Benedicte Sverdrup Ofstad +5 more
wiley +1 more source
Beyond Born-Oppenheimer approximation in ultracold atomic collisions
Physical Review Research, 2020 We report on deviations beyond the Born-Oppenheimer approximation in potassium interatomic potentials. Identifying three previously unknown d-wave Feshbach resonances, we significantly improve the understanding of the ^{39}K interatomic potentials ...
Eberhard Tiemann +5 more
doaj +1 more source
Engineering Fano‐Resonant Hybrid Metastructures with Ultra‐High Sensing Performances
Advanced Optical Materials, Volume 11, Issue 12, June 19, 2023., 2023 A novel metastructure is engineered for ultra‐high sensitivity using epsilon near‐zero (εNZ) and Fano–Rabi physics. A metasurface made of rings with a cross in the center placed on a nanocavity metamaterial numerically achieves a high sensitivity of 16 000–21 000 nm RIU−1 depending on incoming polarization. These results pave the way for new devices in
Giuseppe Emanuele Lio +5 more
wiley +1 more source
Quantum chaos in Feshbach resonances of the ErYb system
New Journal of Physics, 2020 We investigate ultracold magnetic-field-assisted collisions in the so far unexplored ErYb system. The nonsphericity of the Er atom leads to weakly anisotropic interactions that provide the mechanism for Feshbach resonances to emerge.
Maciej B Kosicki +2 more
doaj +1 more source
Magnetic Feshbach resonances in collisions of 23Na40K with 40K
New Journal of Physics, 2021 We present measurements of more than 80 magnetic Feshbach resonances in collisions of ultracold ^23 Na ^40 K with ^40 K. We assign quantum numbers to a group of low-field resonances and show that they are probably due to long-range states of the ...
Xin-Yao Wang +10 more
doaj +1 more source
And if they don't dance, they are no friends of mine: Exploring boundaries of national identity
Nations and Nationalism, Volume 29, Issue 2, Page 579-597, April 2023., 2023 Abstract National identity is widely used to explain anti‐immigrant attitudes and thus the appeal for right‐wing (populist) parties. Yet, consensus on how to capture national identity is lacking. This article identifies ideal‐typical patterns of national boundary making across 42 countries and more than 25 years beyond the ethnic–civic dichotomy and ...
Antonia C. May
wiley +1 more source
Fitting ultracold resonances without a fit
New Journal of Physics, 2021 We present a numerical procedure allowing one to extract Feshbach resonance parameters from numerical calculations without relying on approximate fitting procedures.
A Simoni
doaj +1 more source
Feshbach resonances in ultracold gases [PDF]
, 2014 In this chapter, we describe scattering resonance phenomena in general, and focus on the mechanism of Feshbach resonances, for which a multi-channel treatment is required.
Servaas Kokkelmans +2 more
core +3 more sources
P-wave Feshbach resonances of ultracold ⁶Li [PDF]
, 2004 The three p-wave Feshback resonances of the ultracold 6Li atoms in the lowest hyperfine state f=1/2, were analyzed. The p-wave resonances were observed to have their origin in the same singlet bound state which leads to the s-wave Feshbach resonances ...
Tarruell, L. +20 more
core +2 more sources
Feshbach resonances in ultracold 85Rb [PDF]
, 2013 We present 17 experimentally confirmed Feshbach resonances in optically trapped 85Rb. Seven of the resonances are in the ground-state channel (f,mf)=(2,+2)+(2,+2) and nine are in the excited-state channel (2,−2)+(2,−2).
Blackley, Caroline L. +7 more
core +1 more source