Subject Index
575
Waveguides, 502, 516
Weak ferromagnetism, 131
Weak signals, 445
Weak topological insulator, 393
Weyl nodes, 394
Weyl semimetals, 462, 481, 488
Whirling number, 381
Whitehead formula, 153
Wilson-loop, 427
Winding number, 152, 165, 361, 365, 370,
371
Without the back-action, 17
Z
Zeeman coupling, 279
Zener factor, 300
Zero-correlation length limit, 434
Zero-energy corner state, 429
Zero modes, 428
Zigzag edges, 386
Zigzag type, 434
Zitterbewegung effect, 227, 228
Zitterbewegung of magnons, 228