i was just wondering, if you have two entangled particles and one of them is destroyed, does the entanglement also get destroyed, and would anything else happen?
I know that if you have two entangled particles and measure ones spin, the other one must have the opposite spin, but what if you have 3 particles entangled with each other, what would happen?
well you can know its position on a certain axis, if the photon is going in a strait like you can measure its height without affecting its speed...right?
well, when you measure one particle that is entangled you give that particle certain physical properties according to quantum mechanics, and when you do that the other entangled particle also gets that certan physical property, so is there anyway to see if the particle has that certain property...
can you measure an objects spin or position, or polarization, without actually measuring it? like can you find out if they have any of those 3, without actually measuring it?
all I am really asking, is there any way to shoot a photon at 2 slits, at a random angle (or whater random factor they use in the double slit experiment), is it possible to make it not interfere with itself?
wait, i thought that a particle was never measured (any method of measurment) its position probability narrows, therefore if you measure it and the slits are still the same length apart...it shouldn't interfere with itself. right?
But...what if you measure the photon before you shoot it at the two slits? is the singe-photon interference only if you havn't measure the photon so it therefore is missing position and spin according to GM?
From what I know of the double slit experiment you shine a light at two different slits and half of the photons go through one, and the other half go through the other (or a ratio similar to that), and i am pretty sure the second part of the experiment is to shoot one photon at the two slits and...