29 сент. 2018 г. · …it is shown that the group velocity can be larger than c without having any signal prop. Continue Reading. Yes, it's possible. Group velocity ...

28 сент. 2018 г. · Yes. The group velocity is how fast the wave travels, but he phase velocity is just how fast the wave rises and falls.

15 мар. 2015 г. · All particles move at their group velocity while the phase velocity for a particle has no clear physical interpretation.

29 мая 2023 г. · Yes, a material can have a phase velocity greater than the vacuum speed of light, c=299792458 m/s. For example, X-rays have phase velocity ...

9 мар. 2021 г. · And the group velocity is how fast a light signal is moving. The group velocity is always less than or equal to c ...

30 июн. 2017 г. · …it is shown that the group velocity can be larger than c without having any signal prop. Continue Reading. Yes, it's possible. Group velocity ...

10 авг. 2021 г. · C is the group velocity. It can transmit information. The phase velocity can be greater than C, but it can't transmit information. Upvote ·. 91.

22 июн. 2017 г. · Yes, a material can have a phase velocity greater than the vacuum speed of light, c=299792458 m/s. For example, X-rays have phase velocity in ...

16 янв. 2024 г. · Light's "group velocity" (what we think of as its physical speed) travels slower than C thu a medium (eg, glass or water) due to "refraction ...

31 окт. 2015 г. · We can show that the phase velocity is greater than the speed of ... group velocity which is not greater than c. Since, wave packet ...