Re: [Vo]:Stupid thought...
If you are interested in black hole research, I have just read how to do it with polaritons. You can produce worm holes, white holes, and black holes, even alternate universes, http://arxiv.org/pdf/1104.3013v2.pdf Black Holes and Wormholes in spinor polariton condensates Once a polariton goes into a hot spot, it cannot come out. On Tue, Nov 25, 2014 at 2:25 AM, Axil Axil janap...@gmail.com wrote: http://inspirehep.net/record/1118984/files/arXiv%3A1206.4276.pdf *Analog Hawking radiation from an acoustic black hole in a flowing polariton superuid* We theoretically study Hawking radiation processes from an analog acoustic black hole in a flowing superuid of exciton-polaritons in a one-dimensional semiconductor microcavity. Polaritons are coherently injected into the microcavity by a laser pump with a suitably tailored spot profile. An event horizon with a large analog surface gravity is created by inserting a defect in the polariton flow along the cavity plane. Experimentally observable signatures of the analog Hawking radiation are identified in the scattering of phonon wavepackets of the horizon, as well as in the spatial crelation pattern of quantum uctuations of the polariton density. The potential of these table-top optical systems as analog models of gravitational physics is quantitatively con rmed by numerical calculations using realistic parameters for state-of-the-art devices. On Tue, Nov 25, 2014 at 1:51 AM, John Berry berry.joh...@gmail.com wrote: Ok, so I am not super optimistic that current physics is right about quite a lot... But there is a strong line of reasoning that light should create some degree of gravity. And as such, then enough light in a small enough space should create a black hole. And if that is so, then higher frequency light that has a smaller wavelength and a higher energy would create a stronger gravity field. Indeed so should a massive particle moving insanely fast. Therefore if you moved fast enough to blue shift high enough energy photons (gamma rays) to the point that they have enough energy to be seen as a relativistic black hole Therefore super high frequency photons, photons so insanely beyond gamma rays as to be laughable would be black hole rays. Another thought, if this gravity increased by relativistic velocity idea is right on, then moving at super high speed towards an almost black hole (or past one) would cause it to occur for you as a black hole! In much the same way that a charged object would only be seen to have a magnetic field to a moving observer, or apparently. BTW it only takes about twenty something micrograms to make a black hole if compressed into a small enough space. John
[Vo]:Stupid thought...
Ok, so I am not super optimistic that current physics is right about quite a lot... But there is a strong line of reasoning that light should create some degree of gravity. And as such, then enough light in a small enough space should create a black hole. And if that is so, then higher frequency light that has a smaller wavelength and a higher energy would create a stronger gravity field. Indeed so should a massive particle moving insanely fast. Therefore if you moved fast enough to blue shift high enough energy photons (gamma rays) to the point that they have enough energy to be seen as a relativistic black hole Therefore super high frequency photons, photons so insanely beyond gamma rays as to be laughable would be black hole rays. Another thought, if this gravity increased by relativistic velocity idea is right on, then moving at super high speed towards an almost black hole (or past one) would cause it to occur for you as a black hole! In much the same way that a charged object would only be seen to have a magnetic field to a moving observer, or apparently. BTW it only takes about twenty something micrograms to make a black hole if compressed into a small enough space. John
Re: [Vo]:Stupid thought...
http://inspirehep.net/record/1118984/files/arXiv%3A1206.4276.pdf *Analog Hawking radiation from an acoustic black hole in a flowing polariton superuid* We theoretically study Hawking radiation processes from an analog acoustic black hole in a flowing superuid of exciton-polaritons in a one-dimensional semiconductor microcavity. Polaritons are coherently injected into the microcavity by a laser pump with a suitably tailored spot profile. An event horizon with a large analog surface gravity is created by inserting a defect in the polariton flow along the cavity plane. Experimentally observable signatures of the analog Hawking radiation are identified in the scattering of phonon wavepackets of the horizon, as well as in the spatial crelation pattern of quantum uctuations of the polariton density. The potential of these table-top optical systems as analog models of gravitational physics is quantitatively con rmed by numerical calculations using realistic parameters for state-of-the-art devices. On Tue, Nov 25, 2014 at 1:51 AM, John Berry berry.joh...@gmail.com wrote: Ok, so I am not super optimistic that current physics is right about quite a lot... But there is a strong line of reasoning that light should create some degree of gravity. And as such, then enough light in a small enough space should create a black hole. And if that is so, then higher frequency light that has a smaller wavelength and a higher energy would create a stronger gravity field. Indeed so should a massive particle moving insanely fast. Therefore if you moved fast enough to blue shift high enough energy photons (gamma rays) to the point that they have enough energy to be seen as a relativistic black hole Therefore super high frequency photons, photons so insanely beyond gamma rays as to be laughable would be black hole rays. Another thought, if this gravity increased by relativistic velocity idea is right on, then moving at super high speed towards an almost black hole (or past one) would cause it to occur for you as a black hole! In much the same way that a charged object would only be seen to have a magnetic field to a moving observer, or apparently. BTW it only takes about twenty something micrograms to make a black hole if compressed into a small enough space. John
