Monday, October 17, 2011

Quantum Entanglement: Spook Action at a Distance

Quantum Entanglement is a phenomenon in which the quantum states of two or more objects have to be described with reference to each other, even though the individual objects may be separated in space. Einstein called it “Spook action at a distance”  This results in a correlation between the observable physical properties of the systems such that a change in one object causes an instantaneous change in the other.

Because of Special Relativity  it is generally thought that classical information from being sent faster than light by this means. This is because the two particles need to be near each other to become entangled, or they need an intermediate particle, which has to be near one particle and then the other. But this would not prevent  the possibility of sending information faster than light in cases where the sender and receiver were originally near each other and then separated such as s apace ship leaving Earth and using such a means for communications. Quantum entanglement is a quantum effect that has no parallel in Classical mechanics.

No comments:

Post a Comment