Single photon interference - Physics Stack Exchange
Single photon interference in the regime of quantum mechanics is explained by saying that every photon interferes with itself. This generally gives rise to the following misconception that this interference seems impossible since the photon going through the shorter path always gets absorbed at the detector before the one at the longer path ...
quantum mechanics - Does a photon interfere only with itself?
The apparent interference pattern that results from photons, or even a single photon, passing though a double slit apparatus, is due to the quantum mechanical wave guide structure that determines the probabilities for photons to go from the emitter to …
Single Photon Single Slit Interferometry - Physics Stack Exchange
2015年12月24日 · $\begingroup$ Actually, a single photon going through a single slit also exhibits an interference pattern - for a rectangular aperture it is known as the sinc function. The wave function is diffracted by any aperture - and every part of the wave front, in a sense, interferes with every other part of the wave front. $\endgroup$ –
How to enforce only 1 photon at a time in double slit?
2021年6月4日 · In the experiment the light source is reduce to such low output (see answer by @PhysicsDave) that, when detected, it will produce single photon events. Because of this „single event”-detection, people are inclined to use sentences like as if a single photon is send through the double slit and interferes with itself. But this is nonsense. A ...
quantum mechanics - Single photon interference experiment
Consider the single photon beam splitter experiment. Does the probability of detecting the photon change if the distance between the detectors is unequal? Because light has a fixed velocity c. If the photon is detected at a place that is nearer (detection means absorption unless some special means are used), then it can no longer be anywhere else.
Single photon interference, state "top" current theory
2019年5月25日 · the interference of the single photon that is shot at a time, meaning that the photon's partial waves travel through both slits and then after the slits these partial waves interfere with each other. Now this interference can be constructive, meaning a bright spot on the screen, meaning that a real photon reached the screen and interacted with ...
quantum mechanics - How to interpret single photon interference …
One point. There is no interference pattern from one photon in the energy given up. It is all at one point. Single photon interferences appear cumulatively, from the random accumulation of individual photons:see page7 here..
interference - How can a wave interfere with itself? - Physics Stack ...
The interference phenomenon for "single" photon or electron ia a sympathetic vibration entailing the geometry of the source, the aperture and the detector. Although the particle is single, i.e. electron or photon, it is associated (for instance in the case of photon) with the lateral extent of the beam of in which it travels.
interference - is a single photon a wave? Is it a wave packet ...
2014年2月7日 · You are confusing terms. Photons have energies, and waves have frequencies. Generally (and not so accurately), a wave function can be expressed as a superposition of mutually orthogonal wave function, called eigen-functions, each associated with an eigen-value (energy in your case), so that when a measurement (yours, or some interaction with an appropriate macroscopical body), the wave ...
Coherence length of a single photon - Physics Stack Exchange
2016年6月1日 · A single photon traveling at the speed of light and oscillating at a certain frequency will oscillate through one cycle every wavelength or say 500 nm. As you increase the length of one arm of the experiment the interference will go in and out of phase every one half cycle or every 250 nm.