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Observation of Superluminal Behaviors in Wave Propagation

D. Mugnai, A. Ranfagni, and R. Ruggeri
Phys. Rev. Lett. 84, 4830 – Published 22 May 2000
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The possibility of observing superluminal behavior in the propagation of localized microwaves over distances of tens of wavelengths is experimentally demonstrated. These types of waves, better than the evanescent modes of tunneling, can contribute to answering the question on the luminal limit of the signal velocity.

  • Received 21 January 2000


©2000 American Physical Society


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Faster than a Speeding Light Wave

Published 19 May 2000

Under special conditions, pulses of light can outpace light waves in a vacuum.

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Authors & Affiliations

D. Mugnai, A. Ranfagni, and R. Ruggeri

  • Istituto di Ricerca sulle Onde Eletromagnetiche “Nello Carrara,” CNR, Via Panciatichi 64, 50127 Firenze, Italy

Comments & Replies

Comment on “Observation of Superluminal Behaviors in Wave Propagation”

N. P. Bigelow and C. R. Hagen
Phys. Rev. Lett. 87, 059401 (2001)

Comment on “Observation of Superluminal Behaviors in Wave Propagation”

Harry Ringermacher and Lawrence R. Mead
Phys. Rev. Lett. 87, 059402 (2001)

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Vol. 84, Iss. 21 — 22 May 2000

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