Channel: Looking Glass Universe

Category: Education

Tags: einstein podolsky rosen paradoxpilot waveslooking glass universe quantum entanglementeprentanglementquantum theorybohmian mechanicsepr argumentquantum mechanicsphysics.entanglememt. looking glassrelativityinterpretationepr stateepr experimentepr paradoxeinsteinlooking glass universelooking glass universe epr

Description: What is entanglement really? And why is it that it's a uniquely quantum phenomena? Homework: 1 Explain why Alice can never send any messages through this set up. 2 This is one to practice working with wavefunctions of several objects. Prove mathematically that it’s impossible to write our state as two separate states for the electron and positron 3 This one is very relevant to quantum computing. If you have just one electron or positron, you only need 2 numbers to describe its state. Now suppose you have n of them. If they are not entangled, how many numbers to you need to describe the state? What about for a general state that is allowed to be entangled? Bohmian mechanics stuff: In Bohmian mechanics, you still have superpositions, they just mean something very different. A Bohmian mech particle only has one position, however, it still has a wavefunction that is a superposition of many possibilities. The difference is that the particle has one position but is influenced by other things in it's wavefunction. A particle like this behaves very differently to a classical particle that only has one position and is not at all influenced by it's other possibilities.