Can I read Pairs of surface wave packets with zero-sum energy in the Hawking radiation analog on EtoBox?

Pairs of surface wave packets with zero-sum energy in the Hawking radiation analog by Anirban Guha; Eyal Heifetz; Akanksha Gupta is a Physics and Astronomy article available to read on EtoBox.

What is Pairs of surface wave packets with zero-sum energy in the Hawking radiation analog about?

Here we propose a minimal analog gravity setup and suggest how to select two surface gravity wave packets in order to mimic some key aspects of Hawking radiation from the horizon of nonrotating black holes. Our proposed setup, unlike the scattering problem conventionally studied, constitutes of a constant mean flow over a flat bathymetry, in which the two wave packets possess the same amount of wave action but equal and opposite (sign) amount of energy, thereby mimicking virtual particles created out of near horizon vacuum fluctuations. Attention is given to the physical mechanism relating to the signs of the wave action and energy norm with the wave's intrinsic and total phase speeds. We construct narrow wave packets of equal wave action, the one with positive energy and group speed propagates against the mean flow and escapes from the black hole as Hawking radiation, while the other with negative energy and group speed is drifted by the mean flow and falls into it. Hawking's prediction of low frequency mode amplification is satisfied in our minimal model by construction. We find that the centroid wave numbers and surface elevation amplitudes of the wave packets are related by sim

Who reads Pairs of surface wave packets with zero-sum energy in the Hawking radiation analog?

Author

Anirban Guha; Eyal Heifetz; Akanksha Gupta

Publisher

The American Physical Society; American Physical Society; American Physical Society (APS) (ISSN 1550-7998)

Published

2020

Language

EN

Field

Physics and Astronomy (Physical Sciences)