Figure 3c. Comparison between wave packets with different group velocities. The group velocity in the smaller, red wave packet is higher than in the main wave packet. Despite the precursors for both wave packets in this case arriving at the same time, the maximum of the red wave packet arrives before the maximum of the main wave packet due to the compression caused by its higher group velocity. This thus appears as a superluminal velocity as is also illustrated in Figure 4

From

Apparent Superluminal Speeds in Evanescent Fields, Quantum Tunnelling and Quantum Entanglement

Arne Bergstrom

• Previous
• Figure 6 of 9  (Figures index)
• Next