Results 41 to 50 of about 270,938 (291)

Breathing mode in the Bose-Hubbard chain with a harmonic trapping potential

open access: yes, 2013
We investigate the breathing mode of harmonically trapped bosons in an optical lattice at small site occupancies. The Bose-Hubbard model with a trapping potential is used to describe the breathing-mode dynamics initiated through weak quenches of the trap
Haque, Masudul   +2 more
core   +1 more source

Quantum Breathing Mode of Interacting Particles in a One-dimensional Harmonic Trap

open access: yes, 2012
Extending our previous work, we explore the breathing mode---the [uniform] radial expansion and contraction of a spatially confined system. We study the breathing mode across the transition from the ideal quantum to the classical regime and confirm that ...
David Hochstuhl   +7 more
core   +1 more source

Visualization of nanocrystal breathing modes at extreme strains [PDF]

open access: yesNature Communications, 2015
Nanoscale dimensions in materials lead to unique electronic and structural properties with applications ranging from site-specific drug delivery to anodes for lithium-ion batteries. These functional properties often involve large-amplitude strains and structural modifications, and thus require an understanding of the dynamics of these processes.
Szilagyi, Erzsi   +11 more
openaire   +2 more sources

Gravitational breathing memory and dual symmetries

open access: yesJournal of High Energy Physics, 2021
Brans-Dicke theory contains an additional propagating mode which causes homogeneous expansion and contraction of test bodies in transverse directions.
Ali Seraj
doaj   +1 more source

Collective modes of an imbalanced unitary Fermi gas

open access: yes, 2017
We study theoretically the collective mode spectrum of a strongly imbalanced two-component unitary Fermi gas in a cigar-shaped trap, where the minority species forms a gas of polarons.
Chevy, Frédéric   +3 more
core   +1 more source

Raman-modes of index-identified free-standing single-walled carbon nanotubes [PDF]

open access: yes, 2005
Using electron diffraction on free-standing single-walled carbon nanotubes we have determined the structural indices (n,m) of tubes in the diameter range from 1.4 to 3nm.
Alain Moréac   +9 more
core   +1 more source

Breathing mode of rapidly rotating Bose-Einstein condensates

open access: yes, 2006
We show that the breathing mode of a rapidly-rotating, harmonically-trapped Bose-Einstein condensate may be described by a generalized lowest Landau level (LLL) wave function, in which the oscillator length is treated as a variable.
Watanabe, Gentaro
core   +1 more source

Quantum dynamical response of ultracold few boson ensembles in finite optical lattices to multiple interaction quenches [PDF]

open access: yes, 2017
The correlated non-equilibrium quantum dynamics following a multiple interaction quench protocol for few-bosonic ensembles confined in finite optical lattices is investigated.
Mistakidis, S. I.   +2 more
core   +5 more sources

Collective many-body bounce in the breathing-mode oscillations of a Tonks-Girardeau gas [PDF]

open access: yes, 2016
We analyse the breathing-mode oscillations of a harmonically quenched Tonks-Giradeau (TG) gas using an exact finite-temperature dynamical theory. We predict a striking collective manifestation of impenetrability---a collective many-body bounce effect ...
Atas, Y. Y.   +3 more
core   +4 more sources

Study of cooperative breathing-mode in molecular chains [PDF]

open access: yesPhysical Review B, 2012
Using a controlled analytic non-perturbative treatment, that accounts for the quantum nature of the phonons, we derive a model that generically describes cooperative breathing-mode at strong electron-phonon interaction in one-band one-dimensional systems.
Pankaj, Ravindra, Yarlagadda, Sudhakar
openaire   +2 more sources

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