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Posted by Selsick on December 11, 2003 22:29:58 UTC

Thanks a lot for the link .I found a lot of interesting facts and especially this.

... In the idea proposed by Chen, electrons are instantly accelerated and decelerated in every cycle by a standing wave formed by two counter-propagating, ultra-intense laser pulses. He proposes to detect the Unruh radiation from a minute change of the known classical Larmor radiation emitted when an electron is accelerated. Despite the high acceleration produced in the petawatt laser, the total Unruh radiation power is still found to be smaller than that from the Larmor radiation. However, Chen calculated the angular distribution of both types of radiation and found a "blind spot" (along the direction of acceleration) where the Unruh signal dominates the Larmor signal (See Figure 2).

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