Results 41 to 50 of about 93,863 (276)

Prolate-to-oblate transition and backbending along the yrast line induced by quasiparticle alignment

open access: yesPhysics Letters B, 2020
The yrast lines in Kr isotopes with N=42, 44, and 46 are investigated in a beyond mean field framework with both prolate-oblate coexistence and quasiparticle alignment taken into account.
Fang-Qi Chen, Q.B. Chen
doaj   +1 more source

Excited states of quantum many-body interacting systems: A variational coupled-cluster description [PDF]

open access: yes, 2007
We extend recently proposed variational coupled-cluster method to describe excitation states of quantum many-body interacting systems. We discuss, in general terms, both quasiparticle excitations and quasiparticle-density-wave excitations (collective ...
Blaiza J-P   +8 more
core   +1 more source

Quasiparticles and Quasimomentum

open access: yes, 2006
Common and different properties of particles and quasiparticles are discussed and, in particular, the difference between real and quasimomentum is clarified.
Baltz, Ralph von, Klingshirn, Claus F.
openaire   +4 more sources

A quantitative study of quasiparticle traps using the single-Cooper-pair-transistor

open access: yes, 2007
We use radio-frequency reflectometry to measure quasiparticle tunneling rates in the single-Cooper-pair-transistor. Devices with and without quasiparticle traps in proximity to the island are studied.
A. J. Ferguson   +4 more
core   +1 more source

Physical combinatorics and quasiparticles [PDF]

open access: yesJournal of Statistical Mechanics: Theory and Experiment, 2009
We consider the physical combinatorics of critical lattice models and their associated conformal field theories arising in the continuum scaling limit. As examples, we consider A-type unitary minimal models and the level-1 sl(2) Wess-Zumino-Witten (WZW) model. The Hamiltonian of the WZW model is the $U_q(sl(2))$ invariant XXX spin chain. For simplicity,
Feverati, G., Pearce, P., Witte, N.
openaire   +3 more sources

The quasiparticle band structures of ordered NixPt1-x

open access: yesHeliyon, 2018
The quasiparticle band structures of the ordered L12 and L10 phases of NixPt1-x (x = 0.25, 0.5, and 0.75) have been calculated and compared to the band structures obtained using density functional theory.
I.G. Shuttleworth
doaj   +1 more source

Strong coupling Bose polarons in a two-dimensional gas

open access: yesPhysical Review Research, 2020
We study the properties of Bose polarons in two dimensions using quantum Monte Carlo techniques. Results for the binding energy, the effective mass, and the quasiparticle residue are reported for a typical strength of interactions in the gas and for a ...
L. A. Peña Ardila   +2 more
doaj   +1 more source

Unveiling quasiparticle dynamics of topological insulators through Bayesian modelling

open access: yesCommunications Physics, 2021
Extracting quasiparticle dispersion from photoemission data is challenging and often results in confusion when investigating low-energy excitations.
Satoru Tokuda   +6 more
doaj   +1 more source

Equivalence between fractional exclusion statistics and self-consistent mean-field theory in interacting particle systems in any number of dimensions

open access: yes, 2013
We describe a mean field interacting particle system in any number of dimensions and in a generic external potential as an ideal gas with fractional exclusion statistics (FES).
Anghel, Dragos-Victor   +2 more
core   +3 more sources

Low-energy quasiparticle excitations in dirty d-wave superconductors and the Bogoliubov-de Gennes kicked rotator [PDF]

open access: yes, 2003
We investigate the quasiparticle density of states in disordered d-wave superconductors. By constructing a quantum map describing the quasiparticle dynamics in such a medium, we explore deviations of the density of states from its universal form ...
A. Altland   +31 more
core   +3 more sources

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