What equation describes the wavefunction of a single photon?
2016年9月29日 · Thus its role as a wave function might be somewhat questionable.But still, there must be a wave which explains the well known interference and diffraction patterns. When we see a screen illuminated by laser light that have passed through a double slit, our eyes receives photons scattered by the atoms on the surface of the screen.
quantum mechanics - What is a wave function in simple language ...
2016年4月13日 · The wave function is the solution to the Schrödinger equation, given your experimental situation. With a classical system and Newton's equation, you would obtain a trajectory, showing the path something would follow: the equations of motion.
quantum mechanics - Why does observation collapse the wave …
In Bohm interpretation the collapse of the wave function happens when the observer introduces into the measured system some perturbation, which is inevitable when performing the measurement. The difference between the measurement and any other interaction is in that the perturbation introduced by measurement is unknown beforehand.
Practically, how does an 'observer' collapse a wave function?
2019年10月23日 · A wave function describes this wave packet. Observing a photon generally means that it has been captured (as in a CCD or on a piece of film). In being captured, the photon looses its energy to the capturing device and the wave disappears. There is nothing left for the function to describe.
quantum mechanics - Differences between wavefunction, …
I am trying to understand the differences between wavefunction, probability and probability density. There are different definitions on the internet.
How to determine the direction of a wave propagation?
It's the same thing for a sine function, although the input is in radians then. The -1 in y = x - 1 has the same effect as - w.t in the sine function. In wave functions we call it a phase-shift. This can be a time-dependent phase shift (+/- $\omega t$) and/or a constant phase shift ($\phi$). Easy as that ;-)
What is the purpose of the imaginary portion of the wave function?
2015年6月2日 · It is misleading to consider the real and imaginary parts of the wave function separately. The wave function is a function of spacetime that returns a complex number. We interpret this as meaning that the wavefunction requires two components to describe it. You can think of this as an amplitude and a phase.
quantum mechanics - Why do wave functions need to be …
2015年2月26日 · What was the wave function like prior to normalization? Why did it need to be normalized in the first place? To use my quiz analogy, why wasn't the test out of 100 points to begin which in which case no normalization would be needed. 96% would be 96 points.
What is a phase of a wave and a phase difference?
2018年8月12日 · The phase of the wave is the quantity inside the brackets of the sin-function, and it is an angle measured either in degrees or radians. $\phi=(\frac{2\pi}{\lambda}x-\frac{2\pi}{T}t)$ The phase of a wave is not a fixed quantity .
Complex Conjugate of Wave Function - Physics Stack Exchange
Intuitively, complex conjugation of a wave function describes the time-reversed wavefunction (travelling backward in time as described by Sofia above). From a mathematical perspective; Symmetry operations in Quantum Mechanics are either deemed to be Unitary or Anti-unitary. The time reversal operator is anti unitary.