I would like to make a little poll about the following question.(adsbygoogle = window.adsbygoogle || []).push({});

Let us consider a quantum particle in a box. At a time t1 an impenetrable barrier is inserted into the box, dividing the box in two semiboxes and the wave function of the particle in two disjoined parts. At a subsequent time t2 the semiboxes are open in order to determine in which of them there is the particle. The question is:

Was the particle since the time t1 in the semibox where it has been found at the time t2?

Possible answers:

- yes, because the barrier is impenetrable and the particle cannot jump form a semibox to the other.
- no, because the wave function provides the most complete description of the particle, and until t2 it does not contain the which-semibox information
- other...

What do you think?

**Physics Forums - The Fusion of Science and Community**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# A particle in two boxes

Loading...

Similar Threads - particle boxes | Date |
---|---|

I Particle in a box problem | Jun 17, 2017 |

I How a particle localized in half of a box changes over time | Jun 10, 2017 |

I Why is E not equal to p^2/2m for a particle in a box? | Jun 7, 2017 |

I Identical particles in a box | May 17, 2017 |

**Physics Forums - The Fusion of Science and Community**