Equivalence Principle and Radiation by a Uniformly Accelerated Charge
نویسندگان
چکیده
We address the old question of whether or not a uniformly accelerated charged particle radiates, and consequently, if weak equivalence principle is violated by electrodynamics. We show that radiation has different meanings; some absolute, some relative. Detecting photons or electromagnetic waves is not absolute, it depends both on the electromagnetic field and on the state of motion of the antenna. An antenna used by a Rindler observer does not detect any radiation from a uniformly accelerated co-moving charged particle. Therefore, a Rindler observer cannot decide whether or not he is in an accelerated lab or in a gravitational field. We also discuss the general case.
منابع مشابه
Radiation from a Uniformly Accelerated Charge*
The electromagnetic field associated with a uniformly accelerated charge is studied in some detail. The equivalence principle paradox that the co-accelerating observer measures no radiation while a freely falling observer measures the standard radiation of an accelerated charge is resolved by noting that all the radiation goes into the region of space time inaccessible to the co-accelerating ob...
متن کاملRadiation from a Uniformly Accelerated Charge and the Equivalence Principle
We argue that purely local experiments can distinguish a stationary charged particle in a static gravitational field from an accelerated particle in (gravity-free) Minkowski space. Some common arguments to the contrary are analyzed and found to rest on a misidentification of “energy”.
متن کاملElectrodynamics of Radiating Charges
The theory of electrodynamics of radiating charges is reviewed with special emphasis on the role of the Schott energy for the conservation of energy for a charge and its electromagnetic field. It is made clear that the existence of radiation from a charge is not invariant against a transformation between two reference frames that has an accelerated motion relative to each other. The questions w...
متن کاملInteraction of static classical source with Hawking radiation in Schwarzschild spacetime
We show that static sources coupled to a massless scalar field in Schwarzschild spacetime give rise to emission and absorption of zero-energy particles due to Current address Electronic address: [email protected] Electronic address: [email protected] Electronic address: [email protected] 1 the presence of Hawking radiation. This is in complete analogy with the descriptio...
متن کاملHawking-Unruh Radiation and Radiation of a Uniformly Accelerated Charge
Hawking-Unruh radiation is a measure of the quantum fluctuations in the radiation of accelerated charges. In the case of uniform acceleration, the existence of Unruh radiation adds confidence that radiation exists at all, and helps clarify aspects of the equivalence between radiation in uniform acceleration and in a uniform gravitational field. 1 Hawking-Unruh Radiation According to Hawking [1]...
متن کامل