Results 21 to 30 of about 12,913 (121)

Fast Frictionless Expansion of an Optical Lattice

open access: yes, 2012
We investigate fast frictionless expansion of an optical lattice with dynamically variable spacing (accordion lattice). We design an expansion trajectory that yields a final state identical to the initial state up to an irrelevant phase factor.
Al-Assam   +38 more
core   +1 more source

The seventh blind test of crystal structure prediction: structure ranking methods

open access: yesActa Crystallographica Section B, Volume 80, Issue 6, Page 548-574, December 2024.
The results of the seventh blind test of crystal structure prediction are presented, focusing on structure ranking methods.A seventh blind test of crystal structure prediction has been organized by the Cambridge Crystallographic Data Centre. The results are presented in two parts, with this second part focusing on methods for ranking crystal structures
Lily M. Hunnisett   +146 more
wiley   +1 more source

Reflectionless and invisible potentials in photonic lattices

open access: yes, 2017
An arbitrarily-shaped optical potential on a discrete photonic lattice, which transversely drifts at a speed larger than the maximum one allowed by the light cone of the lattice band, becomes reflectionless.
Longhi, Stefano
core   +1 more source

Isospin splitting of the nucleon mean field

open access: yes, 2005
The isospin splitting of the nucleon mean field is derived from the Brueckner theory extended to asymmetric nuclear matter. The Argonne V18 has been adopted as bare interaction in combination with a microscopic three body force.
B. A. Li   +10 more
core   +1 more source

Coupled-channels calculations of nonelastic cross sections using a density-functional structure model

open access: yes, 2010
A microscopic calculation of the reaction cross-section for nucleon-nucleus scattering has been performed by explicitly coupling the elastic channel to all particle-hole (p-h) excitation states in the target and to all one-nucleon pickup channels.
Dietrich, F. S.   +6 more
core   +1 more source

Exactly solvable $\mathcal{PT}$-symmetric models in two dimensions [PDF]

open access: yes, 2015
Non-hermitian, $\mathcal{PT}$-symmetric Hamiltonians, experimentally realized in optical systems, accurately model the properties of open, bosonic systems with balanced, spatially separated gain and loss.
Agarwal, Kaustubh S.   +2 more
core   +3 more sources

Refractive elastic scattering of carbon and oxygen nuclei: The mean field analysis and Airy structures

open access: yes, 2001
The experimental data on the $^{16}$O$+^{12}$C and $^{18}$O$+^{12}$C elastic scatterings and their optical model analysis are presented. Detailed and complete elastic angular distributions have been measured at the Strasbourg Vivitron accelerator at ...
A. Morsad   +38 more
core   +2 more sources

Explicit inclusion of nonlocality in (d,p) transfer reactions

open access: yes, 2016
Background: Traditionally, nucleon-nucleus optical potentials are made local for convenience. In recent work we studied the effects of including nonlocal interactions explicitly in the final state for (d,p) reactions, within the distorted wave Born ...
Nunes, F. M., Potel, G., Titus, L. J.
core   +1 more source

Critical Temperature for Bose-Einstein condensation in quartic potentials

open access: yes, 2007
The quartic confining potential has emerged as a key ingredient to obtain fast rotating vortices in BEC as well as observation of quantum phase transitions in optical lattices.
Angom, D., Gautam, S.
core   +1 more source

Unidirectionally Invisible Potentials as Local Building Blocks of all Scattering Potentials

open access: yes, 2014
We give a complete solution of the problem of constructing a scattering potential v(x) that possesses scattering properties of one's choice at an arbitrary prescribed wavenumber.
Mostafazadeh, Ali
core   +2 more sources

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