Stimulated Transfer redshift (STz) #281
Replies: 11 comments 64 replies
-
Properties of Stimulated Transfer redshift (STz) A number of properties emerge from the STz model. I- Stimulated Transfers only occur between pairs of counter-propagating light beams. II- Stimulated Transfers increase the temperature of electrons. III- The Stimulated Transfer redshift produces a wavelength-independent redshift in the IGM. where IV- STz produces a redshift that is a function of the column density of electrons. where V- STz relies entirely on stimulated emission; images are not blurred. VI- Momentum transferred along a red-shifted light beam produces radiation pressure. VII- The angular distance of an object is In a flat and non-expanding cosmology, the radial distance VIII- The bolometric luminosity distance is for an object with a constant luminosity such as a galaxy. This results from the conservation of number of photons. IX- A distant object emitting a blackbody spectrum at temperature This is a result of the constant number of photons in a red-shifted blackbody spectrum. X- The luminosity distance for a transient event (e.g. supernovae light-curves) is The out-of-equilibrium conditions caused by the transient cause a time lag between forward-propagating and counter-propagating waves, which stretches light-curves.
XI- The collision rate between particles must not exceed the Stimulated Transfer rate. XII- Stimulated Transfers described in the rest frame of the electron XIII- Saturation effects decrease the efficiency of the process. XIV- Accelerated electrons modify the redshift magnitude and the direction of red-shifted photons. |
Beta Was this translation helpful? Give feedback.
-
From @sahil5d Sun, 13 Oct 2024 18:40 Answering this first:
Your impression would be correct if the process was described by photon#1 + photon#2 + electron. In that case, the interaction rate would be proportional to the product of the number of photons, or But your impression is incorrectly based on the idea of interacting particles. Eq. (5) of the arXiv:2410.02036 paper Since the square-root of the number of photons is related to the amplitude of the light-wave electric field, the process is actually an interaction between two electromagnetic waves (photon-modes) and an electron: wave#1 + wave#2 + electron. a quantity proportional to the electron density This is important: STz is the result of an interaction between two electromagnetic waves and an electron. |
Beta Was this translation helpful? Give feedback.
-
Questions from @sahil5d Sun, 13 Oct 2024 18:40
And @sahil5d Oct 20, 2024 1:03 PM EDT
The two photon modes interacting with the electron, initially at rest, must have different wavelengths differing by Forward propagating mode-F at The interaction transfers a photon-F which disappears from mode-F, to a photon-C which appears in mode-C, and the electron gets a momentum kick The total momentum before and after the transfer is Substituting gives The total energy before and after the transfer is Substituting and multiplying both sides by ‡ Terms of order |
Beta Was this translation helpful? Give feedback.
-
From @sahil5d Sun, 13 Oct 2024 18:40
The Stimulated Transfer process is better described by saying that the electron is interacting with a pair of counter-propagating light waves (see this post). The waves are written as where If wave-C is moved by a distance The new wavefunction which has the same form as Since The idea is that the electron can pick energy from wave-F and add it to wave-C at any time. When it does, a photon transfer has occurred at the position of the electron. |
Beta Was this translation helpful? Give feedback.
-
From @sahil5d Sun, 13 Oct 2024 18:40
First a correction: a more energetic light beam does not imply a blue-shift. A spectrum with 'four red photons' is more energetic than a spectrum with 'one blue photon', yet the four red photons have the most redshift. However it is correct to say that the counter-propagating beam is on the line between our telescope and the star, propagating away from our telescope. No blue-shift is produced by STz. An electron always transfers a photon from the forward propagating mode-F of wavelength One has to look at the complete picture: A physical light beam is the sum of a large number of modes (see arXiv paper, first equation of p. 4) Electrons transfer photons from any of the modes in light-beam-F to any of the modes and vice versa from beam-C to beam-F. Since there can only be transfers to longer wavelengths, the result is a cascade of photons to longer and longer wavelengths. I show this on the cartoon in my CMC-2 talk. Here I've added more details on this already-busy slide. It shows that there are only stimulated transfers to longer wavelengths, and therefore there is no blue-shift. |
Beta Was this translation helpful? Give feedback.
-
Beyond redshift - Extensions and Metaphysics of STz 1) STz is a result of the gradient force on electrons from which Eq. (9) in arXiv:2410.02036 is therefore dependent on the electron column density This makes a difference when comparing tired-light with the 2) The gradient force at the core of STz depends exclusively on stimulated emission. 3) Knowing that electrons are heated by the redshift process gives us an understanding of the hot solar corona. 4) The solar corona produces a redshift that is observed in the Pioneer 6 data 5) The hot plasma in galaxy clusters does not have a clear explanation, except for two ad hoc hypotheses. It is known from plasma physics that a lower density of plasma implies that it cools less efficiently. Stimulated-transfer heating provides a straightforward explanation for these increasing temperatures. 6) Knowing that the physics of redshift conserves the number of photons, the spectral radiance of blackbody radiation is enhanced. 7) STz relies on interacting counter-propagating beams that produce the temporal stretch of transient light-curves. |
Beta Was this translation helpful? Give feedback.
-
A comparison of a few common points shared among 74 exponential tired-light models Tired-light models with the exponential redshift-distance relation
|
Beta Was this translation helpful? Give feedback.
-
Galaxy cluster, Fingers-of-God and no dark matter "The strong appeal of tired-light redshift is that it could naturally explain many types of non-trivial redshift phenomenologies such as ‘redshifts on or by the Sun’, ‘general problems of redshifts’, ‘redshifts of stars’, ‘morphological redshifts’ and ‘Fingers of God’ in the large-scale-structure (usually explained as gravitational infall velocities that produce Doppler)." (my highlight) - M. López-Corredoira and L. Marmet, “Alternative ideas in cosmology,” Int. J. Mod. Phys. D, vol. 31, no. 08, p. 2230014, Jun. 2022, doi: 10.1142/S0218271822300142; https://arxiv.org/abs/2202.12897. The following detailed explanation was published 20 years ago (for those who don't keep up with the litterature): Here's a visual aid I just put together (WARNING: contains unbridled sarcasm against "dark matter" and mainstream astronomers). |
Beta Was this translation helpful? Give feedback.
-
Hi Louis. I have read the article. Congratulations. I have to study QED. It is a description of an interaction of electromagnetic radiation with itself, mediated by the electrons of the IGM. A redshift rate is obtained that does not depend on the wavelength, maintaining the profile of the spectra. As far as I understand, only a cosmic background is necessary at all wavelengths, which,in fact, is the existing one, so that the shift is not cut off by lack of lower energy photons. As far as I see, the spectral transfer does not need standing waves, only traveling waves that propagate in the opposite direction. Just, I do not understand how this explains the time dilation. |
Beta Was this translation helpful? Give feedback.
-
From Eric Lerner, 2024-10-13 and 2024-11-04 - edited
|
Beta Was this translation helpful? Give feedback.
-
How is there a light beam from a telescope to the star? What is the evidence for that? |
Beta Was this translation helpful? Give feedback.
-
The Stimulated Transfer redshift is an effect caused by quantum fluctuations of the gradient force on particles. STz predicts a spectral redshift caused by the momentum recoil of particles interacting with pairs of light waves. The interaction relies entirely on stimulated emission, a process that conserves the total number of photons. As a result, STz modifies the spectra of light beams, but not their direction. The energy taken from the light field contributes to momentum-diffusion heating of the particles. STz is derived from quantum mechanics without any adjustable parameter.
A semi-classical description of the model was presented at the CCC-2:$2^{nd}$ Crisis in Cosmology Conference, May 2009, p. 268. http://aspbooks.org/custom/publications/paper/413-0268.html
L. Marmet, “Optical forces as a redshift mechanism: the ‘Spectral Transfer Redshift’,” in
STz is briefly reviewed in the context of other tired-light redshift mechanisms in Sec. 9 of:
L. Marmet, “On the Interpretation of Spectral Red-Shift in Astrophysics: A Survey of Red-Shift Mechanisms - II,” Jan. 20, 2018, arXiv:1801.07582
A "cosmology calculator" compares distances calculated with STz and ΛCDM:
L. Marmet, "Cosmology Calculators" https://cosmology.info/code/marmet_l/cosmology-calculators.html
A quantum description of the model was presented online at the Seventeenth Marcel Grossmann Meeting.
Preprint of the paper, submitted for consideration in Proceedings of MG17:
L. Marmet, “Diffusive interactions between photons and electrons: an application to cosmology,” arXiv:2410.02036
Slides of the presentation on hal-04762937.
A poster was presented at the Challenges of Modern Cosmology II discussion panel:
L. Marmet, “A Diffusive Light-Electron Interaction: Spectral Redshift Effects in Astrophysics,” presented at CMC-II, Oct. 18, 2024.
https://sites.google.com/view/cmc2024-challengesofmoderncosm/cmc2-posters#h.loz3apfyl8tm
The talk explains STz with a simple analogy:
"CMC II: Challenges of Modern Cosmology Discussion, Oct 17-18, 2024. Part 2 - Oct 18, 2024"
https://youtu.be/0sLCr-n8u5U?t=8279
Beta Was this translation helpful? Give feedback.
All reactions