Petechiae
发表于 2025-3-26 21:48:23
Waves with Negative Energy. Linked Waves and not absorbed, and hence we obtain . However, this is only true for equilibrium media. Equation (10.1) need not be fulfilled in nonequilibrium media; and it is in such media that disturbances and wave propagation may occur with negative energy. The physical meaning of this will be made clear below.
Synovial-Fluid
发表于 2025-3-27 03:29:25
http://reply.papertrans.cn/59/5884/588313/588313_32.png
禁止,切断
发表于 2025-3-27 08:01:51
http://reply.papertrans.cn/59/5884/588313/588313_33.png
Robust
发表于 2025-3-27 11:44:27
http://reply.papertrans.cn/59/5884/588313/588313_34.png
BRINK
发表于 2025-3-27 17:34:55
http://reply.papertrans.cn/59/5884/588313/588313_35.png
NIB
发表于 2025-3-27 18:44:41
http://reply.papertrans.cn/59/5884/588313/588313_36.png
凶兆
发表于 2025-3-28 01:55:14
http://reply.papertrans.cn/59/5884/588313/588313_37.png
Dissonance
发表于 2025-3-28 02:26:27
http://reply.papertrans.cn/59/5884/588313/588313_38.png