SimReal SimReal - Physics - Quantum Physics - Entanglement Entanglement A twin of two quantum particles is generated one place in the space or one place on the earth. Then the two particles are sent far away from each other into the space. If we now measure the spin in one spesific direction (x-, y- or z-direction) of one of the particles, and then measure the spin of the other particle in the same direction, then the spin of these two particles will always be in opposite direction to each other. It seems that when we measure the spin in one spesific direction (x-, y- or z-direction) of one of the particles, then the spin in the same direction of the other particle is affected momentarily (and we observe this when we measure the spin of the last particle). To start the simulation, click on the pushbutton 'Start'. The measure the spin in one spesific direction (x-, y- or z-direction) of one of the particles by click the corresponding radio button. Then measure the spin in the same direction of the other particle and notice the directions of the spin of both particles. Notice that the measurement of the spin in one spesific direction (x-, y- or z-direction) of one of the particles does not affect the spin in an other direction of the other particle. Click the pushbutton 'Reset' to start the process from the beginning again.