Gauge Invariance Approach to Acoustic Fields

Woon Siong Gan

Informasi Umum

Kode

21.21.496

Klasifikasi

530 - Physics, energy, matter, antimatter, classical physics, classical and quantum mechanics

Jenis

Buku - Elektronik (E-Book)

Subjek

Physics, Nonlinear Acoustics

No. Rak

Dilihat

110 kali

Informasi Lainnya

Abstraksi

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.