Einstein-podolsky-rosen effect, Physics

Assignment Help:

Einstein-Podolsky-Rosen effect; EPR effect:

Assume the following quantum mechanical thought-experiment: Take a particle that is at rest and contain spin zero. It decays spontaneously in two fermions (spin 1/2 particles), which stream away into opposite directions at high speed. Because of the law of conservation of spin, we know that one is a spin +1/2 and the other is -1/2. Which one is which? According to quantum mechanics, neither takes on a specific state till it is observed (the wavefunction is collapsed).

The EPR effect revel that if one of the particles is detected, and then its spin is measured, then the other particle no matter where this is in the Universe immediately is forced to select as well and take on the role of the other particle. This demonstrated that certain kinds of quantum information instantaneously travel; not everything is restricted by the speed of light.

But, it can be demonstrated easily that this effect does not make faster-than-light communication or travel possible.


Related Discussions:- Einstein-podolsky-rosen effect

Hopw to solve problem of movable pulleys, How to solve problems based on mo...

How to solve problems based on movable pulleys in an atwood machine? Ans) 1.Draw the FBD. 2.Make the force equations for the two or more masses. 3.There will be a variable simi

In which one units electric current may be expressed, Electric current may ...

Electric current may be expressed in which one of the following units? a)  coulombs/volt b)  joules/coulomb c)  coulombs/second d)

Determine the refractive index of the material of the lens, An equiconvex l...

An equiconvex lens has the radius of one curved surface is 0.12 m and focal length of 0.10 m. Determine the refractive index of the material of the convex lens.

Explain displacement, DISPLACEMENT: The change in the position of a bod...

DISPLACEMENT: The change in the position of a body from its starting position to its final position is known as displacement. It is denoted by d ?.

Determine the work produced by the steam turbine, A steam turbine takes in ...

A steam turbine takes in saturated steam at 300 C and outputs steam at 4 bar. If the efficiency of the turbine is 65%, calculate: a. The final composition (vapor vs. Liquid) of

State pressure law, "The pressure of a needed mass of gas at constant volum...

"The pressure of a needed mass of gas at constant volume differs directly as its Kelvin Temperature",

Examples of like and unlike parallel forces, what are the examples of like ...

what are the examples of like and unlike parallel forces?

Applications of piezoelectric materials, (1) The first practical applicatio...

(1) The first practical application for piezoelectric devices was sonar, first developed during worldwar1. Piezoelectric materials are as a source of ultrasonic waves. At sea, they

Kinematics, the maximum height attained by a projectile and its horizontal...

the maximum height attained by a projectile and its horizontal range are equal to each other if the projectile projected at an angle [theta] given by ?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd