Results 31 to 40 of about 912,798 (201)

Calculations of Resonance Parameters for the Doubly Excited 1P° States in Ps− Using Exponentially Correlated Wave Functions

open access: yesAtoms, 2019
Recent observations on resonance states of the positronium negative ion (Ps−) in the laboratory created huge interest in terms of the calculation of the resonance parameters of the simple three-lepton system.
Sabyasachi Kar, Yew Kam Ho
doaj   +1 more source

Engineering Fano‐Resonant Hybrid Metastructures with Ultra‐High Sensing Performances

open access: yesAdvanced 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 Degenerate Gases Near A Feshbach Resonance [PDF]

open access: yes, 2009
This doctoral dissertation is concerned with the physics of strongly interacting cold alkali atoms at low temperatures near a Feshbach resonance. In Chapter 1, we establish a connection between superfluid 4He and the BCS theory of superconductivity, and ...
Basu, Sourish
core   +6 more sources

And if they don't dance, they are no friends of mine: Exploring boundaries of national identity

open access: yesNations 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

Mott-insulator-aided detection of ultra-narrow Feshbach resonances

open access: yesSciPost Physics, 2018
We report on the detection of extremely narrow Feshbach resonances by employing a Mott-insulating state for cesium atoms in a three-dimensional optical lattice.
Manfred J. Mark, Florian Meinert, Katharina Lauber, Hanns-Christoph Nägerl
doaj   +1 more source

Efimov resonance position near a narrow Feshbach resonance in $^6$Li-$^{133}$Cs mixture [PDF]

open access: yes, 2022
In the vicinity of a narrow Feshbach resonances Efimov features are expected to be characterized by the resonance's properties rather than the van der Waals length of the interatomic potential.
Julienne, Paul S.   +3 more
core   +1 more source

HIGH TEMPERATURE SUPERFLUID AND FESHBACH RESONANCE [PDF]

open access: yesInternational Journal of Modern Physics B, 2005
We study an effective field theory describing cold fermionic atoms near a Feshbach resonance. The effective theory gives a precise description of the dynamics in the limit that the energy of the Feshbach resonance is tuned to be twice that of the Fermi surface.
Hong, Deog Ki, Hsu, Stephen D. H.
openaire   +2 more sources

Strongly Interacting Bose Polarons in Two-Dimensional Atomic Gases and Quantum Fluids of Polaritons

open access: yesAtoms, 2022
Polarons are quasiparticles relevant across many fields in physics: from condensed matter to atomic physics. Here, we study the quasiparticle properties of two-dimensional strongly interacting Bose polarons in atomic Bose–Einstein condensates and ...
Luis Fernando Cárdenas-Castillo   +1 more
doaj   +1 more source

Feshbach resonance-induced Fano interference in photoassociation [PDF]

open access: yes, 2009
We consider photoassociation from a state of two free atoms when the continuum state is close to a magnetic field-induced Feshbach resonance and analyse Fano interference in photoassociation.
Deb, Bimalendu, Agarwal, G. S.
core   +1 more source

One-dimensional quantum droplets under space-periodic nonlinear management

open access: yesResults in Physics, 2021
Quantum droplets have recently emerged as a novel liquid state of matter in a mixture of two-component ultracold Bose gases under the equilibrium condition between the competing attractive inter- and repulsive intraspecies forces.
Junbo Chen, Jianhua Zeng
doaj   +1 more source

Home - About - Disclaimer - Privacy