Larger than light6/13/2023 ![]() Now it's true that there has indeed been evidence of "quantum teleportation" that exceeds the speed of light. For massive particles we are getting into quantum mechanics (as stated in book) in which every particle is described by a wave function. Oh, de Broglie, this will give the wavelength of light (which has no mass keeping the problem easier). Matter waves (water waves, sound waves) and gravity waves are different, as are Electromagnetic waves. No massive particle known exceeds the speed of light. The statement "matter waves travel faster than light" as written in the book is wrong. There also exist gravity waves, but that is another story. No, they are probability waves of particles in the quantum mechanical framework, the underlying framework of nature. For a particle it would again refer to the probability distribution and will be a non measurable quantity, just a mathematical description. Thus there is no way the statement as you have written is correct, unless there is some reference to the phase velocity which can be different for light (classical framework) in a medium. Special relativity imposes the limit of the velocity of light on any motion of particles, in all frameworks, classical and quantum mechanical. changing sinusoidaly in space and time, but the probability of finding it at that (x,y,z,t). ![]() It is not the particle that is waving, i.e. Here lamda is the wavelength of the probability distribution that gives the probable location of the particle in space, when it is measured. Matter waves is a confusing terminology coming from the de Broglie quantum mechanical description of particles, which is what matter is at the quantum mechanical level. I read this thing in my physics textbook.They said matter waves travel faster than light, why is it so? ![]()
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