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Gauge Invariance Approach to Acoustic Fields

Gauge Invariance Approach to Acoustic Fields

Hardcover

Technology & EngineeringPhysics

ISBN10: 9811387508
ISBN13: 9789811387500
Publisher: Springer Nature
Published: Aug 16 2019
Pages: 169
Weight: 0.97
Height: 0.50 Width: 6.14 Depth: 9.21
Language: English
This book highlights the symmetry properties of acoustic fields and describes the gauge invariance approach, which can be used to reveal those properties. Symmetry is the key theoretical framework of metamaterials, as has been demonstrated by the successful fabrication of acoustical metamaterials.
The book first provides the necessary theoretical background, which includes the covariant derivative, the vector potential, and invariance in coordinate transformation. This is followed by descriptions of global gauge invariance (isotropy), and of local gauge invariance (anisotropy). Sections on time reversal symmetry, reflection invariance, and invariance of finite amplitude waves round out the coverage.

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