scholarly journals Sound Propagation and Quantum-Limited Damping in a Two-Dimensional Fermi Gas

2020 ◽  
Vol 124 (24) ◽  
Author(s):  
Markus Bohlen ◽  
Lennart Sobirey ◽  
Niclas Luick ◽  
Hauke Biss ◽  
Tilman Enss ◽  
...  
Keyword(s):  
Sound Propagation ◽  
Fermi Gas ◽  
Two Dimensional

scholarly journals Polarons and molecules in a two-dimensional Fermi gas

2011 ◽  
Vol 83 (2) ◽  
Author(s):  
Sascha Zöllner ◽  
G. M. Bruun ◽  
C. J. Pethick
Keyword(s):  
Fermi Gas ◽  
Two Dimensional

scholarly journals Anomalous Breaking of Scale Invariance in a Two-Dimensional Fermi Gas

2018 ◽  
Vol 121 (12) ◽  
Author(s):  
M. Holten ◽  
L. Bayha ◽  
A. C. Klein ◽  
P. A. Murthy ◽  
P. M. Preiss ◽  
...  
Keyword(s):  
Scale Invariance ◽  
Fermi Gas ◽  
Two Dimensional

Flow-dependent modeling of acoustic propagation based on DG-FEM method

2021 ◽  
Author(s):  
Zichen Wang ◽  
Jian Xu ◽  
Xuefeng Zhang ◽  
Can Lu ◽  
Kangkang Jin ◽  
...  
Keyword(s):  
Sound Propagation ◽  
Transmission Loss ◽  
Acoustic Propagation ◽  
Water Area ◽  
Current Speed ◽  
Propagation Model ◽  
Propagation Loss ◽  
Two Dimensional ◽  
Underwater Sound ◽  
Ocean Environment

AbstractThis paper proposes a two-dimensional underwater sound propagation model using the Discontinuous Galerkin Finite Element Method (DG-FEM) to investigate the influence of current on sound propagation. The acoustic field is calculated by the convected wave equation with the current speed parameter. Based on the current speed data from an assimilation model, a two-dimensional coupled acoustic propagation model in the Fram Strait water area is established to observe the variability in propagation loss under different seasonal velocities in the real ocean environment. The transmission loss and signal time structure are examined. The results obtained in different source frequencies are also compared. It appears that the current velocity, time and range variation all have an effect on underwater sound propagation.

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