Hi nice video, well explained. I was wondering if you could put a thick enough piece of glass in the way on one side that would slow down the wavelength enough (or for that matter even a set of prisms) that would move change the wavelength enough so that it doesn't cancel itself out and then A and B would click if it is really in both places?!
I'm writing my second book called "The Eccentric Universe" - in this I am writing about Superposition and entanglement for beginners. It's a light hearted look at the universe for people who normally watch soaps in telly ... to open their minds to everything around them in a gentle way ... it is a most difficult topic to begin to explain but somehow by making it fun I think will help ... Any ideas ?
An actual demonstration of the way a Mach-Zehnder interferometer works with measurements by a light meter is the evidence of interference and superposition. The first beam splitter divides the initial light intensity in half for each path. Blocking the one or the other path would produce a quarter of the initial intensity at detectors A and B. But when both paths are allowed the we don't get a simple sum of 1/4 + 1/4 = 1/2 for each detector as would be expected for transmission probabilities.
I wasn't impressed by this show. It was alarmist and scare-mongering, and I think he should think about his proposals for the use of such a machine. There is no way a whole human being could be teleported using entanglement, heisenberg's uncertainty principle will see to that. All the ethical treatments were done by star trek way back in the 60s!
i have to agree with amabodie and say that the version that you did on the whiteboard was better to watch. unfortunatly its not terribley "professional". That being said both videos are excellent.
i just have one question. if the two possible photon paths can cancel each other out when they hit detector A, then by the same token shouldnt they add when they hit detector B and create a wave with double amplitude? or is that what happens?
You're right about the four paths of course. But it's not wrong to say the photon is in two places at the same time - which is still weird. I just don't say that it's in four places ;) Keepin it (relatively) simple in the context of the other hour of information we have to get across. Thanks for comment. Know what you mean about the other version too. Not sure an audience would want that for 60 mins tho.....
I have to add, good video and well explained! But I preferred the one with the girl holding the board up and the other guy who sounded like he was experiencing the worst hang-over of his life. Lol :)) Like it. peace!
He's wrong, there are 4 paths for the photon to take. And as detector 'A' is never triggered, the photon is in FOUR places at the same time, every time. Otherwise you would get detector 'A' registering 25% of the time. No?
Hi nice video, well explained. I was wondering if you could put a thick enough piece of glass in the way on one side that would slow down the wavelength enough (or for that matter even a set of prisms) that would move change the wavelength enough so that it doesn't cancel itself out and then A and B would click if it is really in both places?!
Has anyone tried that?
binyominyosef 1 year ago
I'm writing my second book called "The Eccentric Universe" - in this I am writing about Superposition and entanglement for beginners. It's a light hearted look at the universe for people who normally watch soaps in telly ... to open their minds to everything around them in a gentle way ... it is a most difficult topic to begin to explain but somehow by making it fun I think will help ... Any ideas ?
roblowe777 2 years ago 3
By "wave shift" I think you meant, "phase shift"?
ourben 3 years ago
An actual demonstration of the way a Mach-Zehnder interferometer works with measurements by a light meter is the evidence of interference and superposition. The first beam splitter divides the initial light intensity in half for each path. Blocking the one or the other path would produce a quarter of the initial intensity at detectors A and B. But when both paths are allowed the we don't get a simple sum of 1/4 + 1/4 = 1/2 for each detector as would be expected for transmission probabilities.
httprover 3 years ago
I wasn't impressed by this show. It was alarmist and scare-mongering, and I think he should think about his proposals for the use of such a machine. There is no way a whole human being could be teleported using entanglement, heisenberg's uncertainty principle will see to that. All the ethical treatments were done by star trek way back in the 60s!
sprocket90 4 years ago
i have to agree with amabodie and say that the version that you did on the whiteboard was better to watch. unfortunatly its not terribley "professional". That being said both videos are excellent.
i just have one question. if the two possible photon paths can cancel each other out when they hit detector A, then by the same token shouldnt they add when they hit detector B and create a wave with double amplitude? or is that what happens?
Pyroclasticnazi 4 years ago
You're right about the four paths of course. But it's not wrong to say the photon is in two places at the same time - which is still weird. I just don't say that it's in four places ;) Keepin it (relatively) simple in the context of the other hour of information we have to get across. Thanks for comment. Know what you mean about the other version too. Not sure an audience would want that for 60 mins tho.....
snoopfish 4 years ago
I have to add, good video and well explained! But I preferred the one with the girl holding the board up and the other guy who sounded like he was experiencing the worst hang-over of his life. Lol :)) Like it. peace!
amabodie 4 years ago
He's wrong, there are 4 paths for the photon to take. And as detector 'A' is never triggered, the photon is in FOUR places at the same time, every time. Otherwise you would get detector 'A' registering 25% of the time. No?
amabodie 4 years ago
no he's not wrong he said that it could be in a minimum of 2 places! it's probably taking ALL of the possible routes
hmmmarghblahblahbeep 3 years ago