hperrin
@hperrin@lemmy.world
- Comment on How would you decorate this room? 1 day ago:
Everything angles the same as the fan.
- Comment on The Patriarchy 5 days ago:
Whoever painted the lines on that street was drunk.
(Yeah, I know it’s AI generated, that doesn’t mean I’m wrong.)
- Comment on Did the premise of an entity approaching you only when it's not being viewed originate with Doctor Who's Weeping Angels? 5 days ago:
That may not be the correct way of saying it. You can equally explain the data by phrasing it, “when the photon remains a wave, the which path information is nonrecoverable.”
Moreover, it’s observed that the apparent retroactive action vanishes if the effects of observations on the state of the entangledsignal and idler photons are considered in their historic order. Specifically, in the case when detection/deletion of which-way information happens before the detection on D0, the standard simplistic explanation says “The detector Di, at which the idler photon is detected, determines the probability distribution at D0 for the signal photon”. Similarly, in the case when D0 precedesdetection of the idler photon, the following description is just as accurate: “The position at D0 of the detected signal photon determines the probabilities for the idler photon to hit either of D1, D2, D3 or D4”. These are just equivalent ways of formulating the correlations of entangled photons’ observables in an intuitive causal way, so one may choose any of those (in particular, that one where the cause precedes the consequence and no retrograde action appears in the explanation).
The total pattern of signal photons at the primary detector never shows interference (see Fig. 5), so it is not possible to deduce what will happen to the idler photons by observing the signal photons alone. In a paper by Johannes Fankhauser, it is shown that the delayed choice quantum eraser experiment resembles a Bell-type scenario in which the paradox’s resolution is rather trivial, and so there really is no mystery. Moreover, it gives a detailed account of the experiment in the de Broglie-Bohm picture with definite trajectories arriving at the conclusion that there is no “backwards in time influence” present.[23] The delayed-choice quantum eraser does not communicate information in a retro-causal manner because it takes another signal, one which must arrive by a process that can go no faster than the speed of light, to sort the superimposed data in the signal photons into four streams that reflect the states of the idler photons at their four distinct detection screens.[note 2][note 3]
But more importantly, you will get the same results regardless of whether a human being is there to observe it. It’s the detection of the photon (by way of interacting with the photon detector) that matters, not whether there is a person there to observe the detection.
- Comment on Did the premise of an entity approaching you only when it's not being viewed originate with Doctor Who's Weeping Angels? 6 days ago:
Yeah, I guess in my statement I should have said “unless” instead of “until”, because it’s not time dependent. But it’s still the act of measurement, not the act of a conscious person looking at that measurement, that causes the collapse of the wave function.
- Comment on Did the premise of an entity approaching you only when it's not being viewed originate with Doctor Who's Weeping Angels? 1 week ago:
“Observation” in quantum mechanics doesn’t mean a person looking at them, it means taking a measurement, which involves interacting with the particles somehow. It’s that interaction that causes the particles to behave differently. In other words, photons behave as a wave (moving according to a wave function) until another particle interacts with them, at which point they behave as a particle (moving in a straight line). See the various different double slit experiments for evidence of this.
- Comment on I’m fascinated by this open-world delivery game that sounds like Death Stranding on a horse in 13th-century Mongolia, with “unparalleled equine realism” 1 week ago:
Mr Hands?
- Comment on Slommy Shitpost 1 week ago:
Slommy and jizz.
- Comment on what is this game 1 week ago:
That looks like Grand Theft Auto 5. I believe the car in the screenshot is the Dodge Corolla XS.
- Comment on Nintendo DMCA nukes 8,535 GitHub copies of Switch emulator yuzu 2 weeks ago:
Surely this time will be the last they hear of Yuzu, right?
- Comment on Nintendo DMCA nukes 8,535 GitHub copies of Switch emulator yuzu 2 weeks ago:
I have a full backup through a torrent.
- Comment on Found this great deal on a new chair for my living room. Almost 50% off! 2 weeks ago:
I will never understand why “shitty” is an aesthetic.
- Comment on Found this great deal on a new chair for my living room. Almost 50% off! 2 weeks ago:
Whoever*
Whom is only ever an object.
Who is an object or subject.
- Comment on Found this great deal on a new chair for my living room. Almost 50% off! 2 weeks ago:
They’re top heavy.
- Comment on Capitalists hate competition, especially when it comes to wages 2 weeks ago:
If they don’t list the salary, they definitely can’t afford me.
- Comment on Razer to pay out over $1 million in refunds over its misleading (and hideous) Zephyr face mask 2 weeks ago:
They sold over $1m worth of those things??
- Comment on .sıɥʇ puǝɥǝɹdɯoɔ ʇ'uɐɔ puıɯ lɐıɹǝɥdsıɯǝɥ uǝɥʇɹou ǝɥʇ 3 weeks ago:
“northen hemispherial”
- Comment on is there a legal way to consume alcohol bought at a store, outside of a home, hotel room, etc.? 3 weeks ago:
The freedom that puritanical Christians enjoyed to write all the laws.
- Comment on [deleted] 3 weeks ago:
If you’re talking about assisted suicide, that is done with a doctor’s assistance, not by setting yourself on fire.
- Comment on [deleted] 3 weeks ago:
If someone is suicidal, the police have a duty to protect them from themself.
- Comment on I was handed this lovely flyer while grocery shopping 4 weeks ago:
Even more… um… impressive?
- Comment on I was handed this lovely flyer while grocery shopping 4 weeks ago:
Jesus Christ. That’s so much misinformation in just two sheets of paper.
- Comment on They really want people to RTO 4 weeks ago:
I remember back in the fifties how all the conservatives were so happy that all the women were barefoot at home cause they couldn’t have a job, but also simultaneously so upset about all the bed rotting they did. Then the damn liberals invented jobs for women and ruined everything. Now the uppity women are upset about “not having control over their own bodies” and “being forced to give birth to a corpse when the fetus dies” and “dying because of an ectopic pregnancy, something that hasn’t happened in the US since the Industrial Revolution”.
/s (in case that wasn’t obvious)
- Comment on Jeff Bezos and Elon Musk have a baby 4 weeks ago:
Yeah, you take the “Alex” from the beginning of Jeff and the “is” from the end of Elon. Alexis.
- Comment on Return to monkey then? 4 weeks ago:
Let’s go back to the beer economy, where your money goes bad eventually if you don’t drink it. Elon Musk would have the largest reserve of rotten beer in human history. He deserves it.
- Comment on Pros and cons of getting a job at a very small software company? (14 employees) 5 weeks ago:
I’ve worked at two smaller companies like that. I had a great experience at one of them, and a mediocre experience at the other one. So, I feel like it’s probably just hit or miss depending on the company.
- Comment on Want to lose weight? Poverty can help! 5 weeks ago:
You have to be really poor to lose weight because of it. Cheaper food is usually high in calories and low in nutrition.
- Comment on You will certainly not regret 1 month ago:
- Comment on How does the xz incident impacts the average user ? #xz 1 month ago:
It could have meant a lot to the average person if it wasn’t caught. If this was some adversary, they could have used it to cripple critical infrastructure in the largest cyber attack in history.
- Comment on What produced the old dead channel tv static audiovisuals on tvs? 1 month ago:
Only a fraction, but yes. It’s cool to think those photons have been around since the universe turned transparent.
- Comment on Quest 1 becomes near-E-waste Apr 30 1 month ago:
I’m really hoping that Valve releases a new headset by the time my Quest inevitably becomes unusable.