Quantum Theory
Quantum physics and related topics.
2153 topics in this forum
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Continuity - Discontinuity: 'Waveicles' --------------------------------------------------------- by K. B. Robertson. The superfluously conflicting schools of thought (Circa 1900 thru 1930 and ever since) on Max Planck's - Helmholtz inspired, Rubens confirmed - Quantum Mechanics'. The 1897 dated observation of black body radiation led Planck to attempt to observe an invariable increase in entropy, which resulted in null thought and laboratory experiments; leading to Planck's 1900 revision of Boltzmann's alternately continuous and discontinuous statistical interpretaton of the 2nd law of thermodynamics (later paralleled by Heisenberg's Principle of Indetermina…
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"As Above So Below": Ain't necessarily so. by K. B. Robertson. The superfluously conflicting schools of thought (Circa 1900 thru 1930 and ever since) on Max Planck's - Helmholtz inspired, Rubens confirmed - Quantum Mechanics'. The 1897 dated observation of black body radiation led Planck to attempt to observe an invariable increase in entropy, which resulted in null thought and laboratory experiments; leading to Planck's 1900 revision of Boltzmann's alternately continuous and discontinuous statistical interpretaton of the 2nd law of thermodynamics (later paralleled by Heisenberg's Principle of Indet…
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I read somewhere that for every particle of matter ''created'' there is an antimatter equvalent. So what happened to the antimatter? Sorry if I posted in the wrong section.
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This may be a meaningless question; this level of physics is not my field. (It's also late at night.) However, this just occurred to me: Are there any equivalents at the atomic or elementary particle level for the tidal effects we see from gravity in the macrocosm? Thanks!
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I've heard people discuss retrocausality(that causes in the future can change effects in the past). It seems to me if anyone could do this they would be a millionaire and here's why. I've comprehended the ability to do this described in layman's terms like this. If you shoot particles through a double slit at a screen, whether u view them or not changes whether it has an interference pattern or not. So in order to predict the future and prove retrocausality you do the experiment 16 times and collect the data for each one store it away and then in the future you look at the experiments that are the binary number of the future lottery number. This will change each o…
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I am currently examing this phenomenon but I have not found a single text describing the cause of the emission. What governs the need for the excited electron to emit a coherent photon when stimulated by an incident photon? Why must it have same phase, direction and wavelength? (I guess these may vary due to the uncertainty, so that the wavelength might be slightly different and the direction as well?)
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(As a disclaimer, this won't be the most profound post ever made on SFN. I'm not a physicist and have no real knowledge of quantum theory.) Has anyone else noticed that the word 'quantum' is being used bizarrely these days? I was in the supermarket the other day, and I saw some "Quantum Toilet Cleaner". It was next to the Finish Dishwasher tablets, which were also "Quantum". Accompanying the word were sleek, silvery graphics. In a local bookstore was a book called "Quantum Touch: The Power To Heal". Next to the book were some people discussing how quantum theory means that science has validated their beliefs in angels, chakras and crystal healing. Do any p…
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According to Severian, "Quantum mechanical wavefunctions are only quantized if you set boundary conditions. And this is not really a 'quantum' phenomena, as ordinary waves are similarly quantized (pluck a guitar string and you get one note). The unique thing about QM is that observations change the state of the system, so it would have been better to incorporate that into a name (Observer modified mechanics or something)." I would like to clarify this question: a single measurement do not modify the system state ψ but supplies a bit of information about the state. Only an infinite number of measurements cover every possibility contained in the QM state, for examp…
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The frame of a photon makes sense in a transparent medium where v < c.
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(I couldn't decide which area this topic would be most appropriate for, so please feel free to move it somewhere else if need be.) I was wondering if there has been any entertaining of the possiblilty that a Black hole Could be the "end" of a trans-dimensional open string? On the idea that the more energy you pump into a string, the more it will vibrate until it reaches a critical intensity, then afterwards the string will extend proportional to the extra energy you continue to give it... With a black hole, gravity will mean that the string will have nowhere to go, as it's length would be restricted by gravity and the warping of space, but what if the end of t…
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I am a bit confused about the transfer of forces in terms of Force Carrier Particles. If person A pushes person B what type of force carrier particles are transfered (if any)? and where do those particles come from? If my question has inconsistensies I am sorrry.
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E(mass) = m c*2 is the energy with speed of light in a vacuum and “at rest” mass. The energy of a photon is E = hf. A photon has internal and kinetic energies…..what does this value of E express, exactly. For example, if I put a photon in a box and move this box at the speed of light in spacetime (a non inertial frame), what is the energy inside that box? Is it E? Is E expressing “at rest” energy of a mass-less particle?
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To my understanding Quantum Entanglement is when a single photon is split into two identical photons where a change in one photon produces an exact change in the other photon. Now, my question is that when the photon is split, one part travels horizontally on the earth while the other travels straight up into the sky. Will the particle moving horizontally redshift the same as the particle moving upward?
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In the context of string theory and multiple dimensions does entanglement represent any physical manifestation of such possibly?
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Is there any proof of the uncertainity principle without the use of braket vectors? If so please send me where to find it.
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I have only recently become familiar with this concept, so please forgive me if my question seems daft. Schrödinger wrote "Until the box is opened at the end of the hour, we will not know what has happened. According to quantum law then, the cat is both dead and alive, in a superposition of states. It is only when we break open the box and learn the condition of that cat that the superposition is lost, and the cat becomes either dead or alive. It's the "both dead AND alive" bit that I cannot grasp. Why not "dead OR alive" because at that stage, we still don't know, so the answer has to be OR, as there are two possibilities. To take another example, before a tin …
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I'm sorry if this has been gone-over recently. I have read a few web-pages that have undermined my simple understanding of this. Here’s what I thought I knew about quantum entanglement: If two (or more) ‘particles’ (‘photons’ in the experiments) are created at the same time/place, they are Entangled. Alain Aspect, etc. Is this wrong? I have read about experiments that try to Entangle macro objects…. But… (I don’t understand them). I’m wondering why Everything isn’t Entangled via the alleged Big Bang? (Again, if you reply, keep in mind that I (obviously) know Nothing, so err on the side of crayon drawings). But I want to know.
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Okay, you're probably thinking this is another "can I use quantum entanglement to achieve superluminal-speed communication?". Well, it's not exactly that issue. I understand that an entangled pair of photons behave like there is no space between them and that once one has been observed it has an instantaneous effect on the other. But then, WHY? How is the information of photon A being observed travel to photon B? Does THIS information (that says, "oh, photon A's been observed as something") travel faster than light? Does it perhaps travel in another dimension? Or is this information not needed at all to affect the other photon and I'm just thinking in classical mechan…
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I believe that worm holes are inside Black Holes or is it in White Holes. Is there some way to find a worm hole out there or is it just a wish.?. Do worm holes only travel in one direction ?. And if we go into one to see whats out there :doh:and never ride the time tunnel back in the opposite direction for home ?.
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Hi, Is it considered a possibility (by ANY current theory) that the basic building blocks of all matter (all sub-atomic particles) is the super string? Also is the definition of a super string (by ANY current theory) include a space/time wrinkle vibrating into the 10 dimensions of existence (or what part of this definition is not correct)? Thanks, Ron Science Fiction Writer Amateur science buff (all but especially physics, cosmology, quantum mechanics, astronomy)
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If gamma rays have the highest frequency, then they must have the highest energy. So why aren't they able to ionize atoms? (by removing electrons)
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How is light reflected off a particular material at atomic level? And how does that relate to blackbody radiation?
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This is my last bit of effort in trying to conceptualize the everything in physics....I made this image to help illustrate what I am saying. http://img219.imageshack.us/img219/7950/76374648.jpg First box: This is how I gather an EM wave is. Photons of different concentrations and intensity, and that the mathematical representation would be like the squggly thing I made. How close I am here. Second box: If a particle or lets say photon again has energy (I assume thats what a carrier does) is it sort of in the sense trapped (for lack of a better word) surrounding the photon, or is it within the photon. Three box: Let's say a photon is zoomin…
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Synopsis: Download the full pdf text here ...and have fun with the calculus SU(3) changed my life!!!
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