scholarly journals Higgs mode and its decay in a two-dimensional antiferromagnet

2017 ◽  
Vol 13 (7) ◽  
pp. 633-637 ◽  
Author(s):  
A. Jain ◽  
M. Krautloher ◽  
J. Porras ◽  
G. H. Ryu ◽  
D. P. Chen ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Higgs Mode

scholarly journals Raman Scattering from Higgs Mode Oscillations in the Two-Dimensional Antiferromagnet Ca2RuO4

2017 ◽  
Vol 119 (6) ◽  
Author(s):  
Sofia-Michaela Souliou ◽  
Jiří Chaloupka ◽  
Giniyat Khaliullin ◽  
Gihun Ryu ◽  
Anil Jain ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Two Dimensional ◽  
Higgs Mode

scholarly journals Effective field theory of the Higgs mode in a two-dimensional dilute Bose gas

2021 ◽  
Author(s):  
Ji-Chong Yang ◽  
Yu Shi
Keyword(s):  
Field Theory ◽  
Spectral Function ◽  
Effective Field Theory ◽  
Temperature Limit ◽  
Bose Gas ◽  
Effective Field ◽  
Two Dimensional ◽  
Zero Temperature ◽  
Text Model ◽  
Higgs Mode

In this paper, we investigate the spectral function of the Higgs mode in a two-dimensional Bose gas by using the effective field theory in the zero-temperature limit. Our approach explains the experimental feature that the peak of the spectral function is a soft continuum rather than a sharp peak, broadens and vanishes in the superfluid phase, which cannot be explained in terms of the [Formula: see text] model. We also find that the scalar susceptibility is the same as the longitudinal susceptibility.

scholarly journals Higgs Mode in a Two-Dimensional Superfluid

2012 ◽  
Vol 109 (1) ◽  
Author(s):  
L. Pollet ◽  
N. Prokof’ev
Keyword(s):  
Two Dimensional ◽  
Higgs Mode

scholarly journals Massive Goldstone (Higgs) mode in two-dimensional ultracold atomic lattice systems

2015 ◽  
Vol 92 (17) ◽  
Author(s):  
Longxiang Liu ◽  
Kun Chen ◽  
Youjin Deng ◽  
Manuel Endres ◽  
Lode Pollet ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Lattice Systems ◽  
Atomic Lattice ◽  
Higgs Mode

scholarly journals Higgs mode in (2 + 1)-dimensional O(2) model

2021 ◽  
Author(s):  
Ji-Chong Yang ◽  
Yu Shi
Keyword(s):  
Weak Interaction ◽  
Temperature Limit ◽  
Bose Gas ◽  
Two Dimensional ◽  
Zero Temperature ◽  
Spectral Functions ◽  
Text Model ◽  
Higgs Mode ◽  
Mode A

In this paper, we investigate the spectral functions of the Higgs mode in [Formula: see text] model, which can be experimentally realized in a two-dimensional Bose gas. Zero temperature limit is considered. Our calculation fully includes the 2-loop contributions. Peaks show up in the spectral functions of both the longitudinal and the scalar susceptibilities. Thus, this model cannot explain the disappearance of the response at the weak interaction limit. Neither it can explain the similarity between the longitudinal and the scalar susceptibilities in the visibility of the Higgs mode. A possible lower peak at about [Formula: see text] is also noted.

Spectrophotometric measurements of objective-prism spectra

1966 ◽  
Vol 24 ◽  
pp. 118-119
Author(s):  
Th. Schmidt-Kaler
Keyword(s):  
Progress Report ◽  
Two Dimensional ◽  
Objective Prism ◽  
Made In

I should like to give you a very condensed progress report on some spectrophotometric measurements of objective-prism spectra made in collaboration with H. Leicher at Bonn. The procedure used is almost completely automatic. The measurements are made with the help of a semi-automatic fully digitized registering microphotometer constructed by Hög-Hamburg. The reductions are carried out with the aid of a number of interconnected programmes written for the computer IBM 7090, beginning with the output of the photometer in the form of punched cards and ending with the printing-out of the final two-dimensional classifications.

Introductory paper

1966 ◽  
Vol 24 ◽  
pp. 3-5
Author(s):  
W. W. Morgan
Keyword(s):  
Line Intensity ◽  
Classification Scheme ◽  
Two Dimensional ◽  
Spectral Classification ◽  
Dimensional Array ◽  
Rr Lyrae ◽  
Metallic Line ◽  
Introductory Paper ◽  
Parameter Varying ◽  
Definition Of

1. The definition of “normal” stars in spectral classification changes with time; at the time of the publication of theYerkes Spectral Atlasthe term “normal” was applied to stars whose spectra could be fitted smoothly into a two-dimensional array. Thus, at that time, weak-lined spectra (RR Lyrae and HD 140283) would have been considered peculiar. At the present time we would tend to classify such spectra as “normal”—in a more complicated classification scheme which would have a parameter varying with metallic-line intensity within a specific spectral subdivision.

A one-dimensional self-gravitating stellar gas

1966 ◽  
Vol 25 ◽  
pp. 46-48 ◽  
Author(s):  
M. Lecar
Keyword(s):  
Gravitational Field ◽  
Phase Space ◽  
Motion Picture ◽  
Space Distribution ◽  
Two Dimensional ◽  
One Dimensional ◽  
Phase Space Distribution ◽  
Dimensional Phase Space ◽  
The Mean

“Dynamical mixing”, i.e. relaxation of a stellar phase space distribution through interaction with the mean gravitational field, is numerically investigated for a one-dimensional self-gravitating stellar gas. Qualitative results are presented in the form of a motion picture of the flow of phase points (representing homogeneous slabs of stars) in two-dimensional phase space.

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