Y. Barlas, and C. Varma. (2012)cite arxiv:1211.7363 Comment: An addendum to our earlier paper titled "Higgs modes in D-wave Superconductors".
Abstract
A brief summary of collective mode excitations that can exist in singlet
superconductors with irreducible representation $L$ is given. Such excitations
may be classified as the coupled excitations of the charge density $\rho$ and
the phase $$ of the order parameter, or of the amplitude $\Delta$ of order
parameter. Each of these classes may be further characterized in the long
wavelength limit by the irreducible representation $\ell$ of the excitation,
which may or may not be the same as the ground state $L$.
%0 Generic
%1 barlas2012collective
%A Barlas, Yafis
%A Varma, C. M.
%D 2012
%K collective
%T Collective modes in singlet superconductors
%U http://arxiv.org/abs/1211.7363
%X A brief summary of collective mode excitations that can exist in singlet
superconductors with irreducible representation $L$ is given. Such excitations
may be classified as the coupled excitations of the charge density $\rho$ and
the phase $$ of the order parameter, or of the amplitude $\Delta$ of order
parameter. Each of these classes may be further characterized in the long
wavelength limit by the irreducible representation $\ell$ of the excitation,
which may or may not be the same as the ground state $L$.
@misc{barlas2012collective,
abstract = {A brief summary of collective mode excitations that can exist in singlet
superconductors with irreducible representation $L$ is given. Such excitations
may be classified as the coupled excitations of the charge density $\rho$ and
the phase $\phi $ of the order parameter, or of the amplitude $\Delta$ of order
parameter. Each of these classes may be further characterized in the long
wavelength limit by the irreducible representation $\ell$ of the excitation,
which may or may not be the same as the ground state $L$.},
added-at = {2012-12-04T15:45:21.000+0100},
author = {Barlas, Yafis and Varma, C. M.},
biburl = {https://www.bibsonomy.org/bibtex/27b596134ac3e6a34972a9215959c396a/vakaryuk},
description = {Collective modes in singlet superconductors},
interhash = {24b34e51777b40c1edcd924faaa26aff},
intrahash = {7b596134ac3e6a34972a9215959c396a},
keywords = {collective},
note = {cite arxiv:1211.7363 Comment: An addendum to our earlier paper titled "Higgs modes in D-wave Superconductors"},
timestamp = {2012-12-04T15:45:21.000+0100},
title = {Collective modes in singlet superconductors},
url = {http://arxiv.org/abs/1211.7363},
year = 2012
}