On Monday, January 14, 2019 at 11:41:15 PM UTC, Philip Thrift wrote: > > > > On Monday, January 14, 2019 at 4:58:52 PM UTC-6, [email protected] > wrote: >> >> >> >> On Monday, January 14, 2019 at 10:27:19 AM UTC, Philip Thrift wrote: >>> >>> >>> >>> On Monday, January 14, 2019 at 2:53:53 AM UTC-6, [email protected] >>> wrote: >>>> >>>> >>>> >>>> On Monday, January 14, 2019 at 6:12:43 AM UTC, Brent wrote: >>>>> >>>>> >>>>> >>>>> On 1/13/2019 9:51 PM, [email protected] wrote: >>>>> >>>>> This means, to me, that the arbitrary phase angles have absolutely no >>>>> effect on the resultant interference pattern which is observed. But isn't >>>>> this what the phase angles are supposed to effect? AG >>>>> >>>>> >>>>> The screen pattern is determined by *relative phase angles for the >>>>> different paths that reach the same point on the screen*. The >>>>> relative angles only depend on different path lengths, so the overall >>>>> phase >>>>> angle is irrelevant. >>>>> >>>>> Brent >>>>> >>>> >>>> The Stackexchange links affirm the existence of interference for >>>> *relative* phase angles, but say nothing about different path lengths, >>>> which is the way I've previously thought of interference. So I remain >>>> confused on the subject of quantum interference and its relation to >>>> relative phase angles. AG >>>> >>> >>> >>> Each path going to screen has a UCN* (unit complex number). For screen >>> locations that get their paths with UCNs that are in the same general >>> direction (as a vector in the complex plane, angle or phase), the sum of >>> those UCNs will be a complex number with a big length. For other screen >>> locations, the path UCNs when summed will cancel each other out. Hence the >>> light and dark lines on the screen. >>> >>> * UCN: unit complex numbers [ https://en.wikipedia.org/wiki/Circle_group >>> ] >>> >>> "In mathematics, the circle group, denoted by T, is the multiplicative >>> group of all complex numbers with absolute value 1, that is, the unit >>> circle in the complex plane or simply the unit complex numbers." >>> >>> - pt >>> >> >> Thanks, but I don't think you understand the issue I raised. I discussed >> two ways to apply relative phases, which results in different >> probabilities. AG >> > > I don't how "relative" helps with anything, but a phase is what it is: > > A physical basis for the phase in Feynman path integration > > https://arxiv.org/abs/quant-ph/0411005 > > - pt >
The Stackexchange links illustrate global vs relative phases. AG > > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
