Well, I know about spin relaxation, superposition, quantum uncertainty, and Einstein's experiments. I know about the speed of light contain, also the fact that we can't control the spin of a particle.
I still think it can somehow be bypassed and used for the greater good. I want to know everything about quantum entanglement, especially, if there is a way it can be USD to communicate.
Answers to individual questions are expected and respected.
I would also like to know if we can measure spin direction of a single electron, and if yes how is it done?
The measurement of the spin direction of a single electron is a fascinating aspect of quantum mechanics. In quantum theory, the intrinsic angular momentum or spin of a particle is a fundamental property. The spin of an electron is quantised, meaning it can only take certain discrete values.
In the case of an electron, its spin can be in one of two possible directions, often referred to as "spin-up" and "spin-down." The Stern-Gerlach experiment is a classic experiment in quantum mechanics that provides a method for measuring the spin of a particle along a particular direction.
It's important to note that the act of measurement in quantum mechanics involves a degree of uncertainty, and the act of measuring the spin along one direction disturbs our ability to simultaneously measure another component of the spin with precision (Heisenberg's uncertainty principle). The Stern-Gerlach experiment provides a direct demonstration of the quantisation of angular momentum in quantum systems.
Akash Verma
Dear Professor Verma,
I think it can be used for quantum communication.
Cf. Suggested Experiments : Physical Separation of entangled Josephson junctions.
http://dx.doi.org/10.13140/RG.2.2.33962.75209/1
If you want to know everything about (quantum) entanglement, don't study quantum. "Entanglement" in quantum is a problematic, ad hoc addition to a model. The key experiment IMO is the A Aspect experiment. "Spin" is a way of fitting classical angular mechanics to experimental (Stern-Gerlach experiment) data. It doesn't mean the particle is really spinning. I suggest that since the experiment is a magnetic field, the experiment is measuring magnetic poles - at least 2 N-S pole sets , perhaps 4. So, yes one should be able to orient the poles with a magnet.
The STOE (mine) suggests a plenum (aether or spacetime like real substance in our universe) does transmit waves at superluminal speed such as in van Flandern experiments. But our detecting experiment detects matter particles and the effect of the plenum, but not the plenum directly. So, communication may intimately be limited by the speed of matter particles - light.
- Badges
- Science topic
- Similar topics
- Geoscience
- Atmospheric Sciences
- Atmosphere