Abstract
Hawking radiation has been regarded as a more general phenomenon than in gravitational physics, in particular in laboratory analogs of the event horizon. Here we consider the fiber-optical analog of the event horizon, where intense light pulses in fibers establish horizons for probe light. Then, we calculate the Hawking spectrum in an experimentally realizable system. We found that the Hawking radiation is peaked around group-velocity horizons in which the speed of the pulse matches the group velocity of the probe light. The radiation nearly vanishes at the phase horizon where the speed of the pulse matches the phase velocity of light.
| Original language | English |
|---|---|
| Article number | 053820 |
| Number of pages | 13 |
| Journal | Physical Review A |
| Volume | 93 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 16 May 2016 |
Funding
D.B. would like to thank Scott Robertson and Jonathan Drori for valuable discussions. D.B. also thanks the people at Weizmann Institute of Science for their hospitality during part of the period in which this work was done. This work was supported by the European Research Council, the Israeli Science Foundation, CONACYT (Mexico) Project 152574, and a research grant from Mr. and Mrs. Louis Rosenmayer and from Mr. and Mrs. James Nathan.
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics