Translation of Einstein’s 1948 Paper

Claus Kiefer

Baoqing Sun, M. S. Pindzola

We investigate the process of merging and splitting Bose–Einstein condensates into two slowly translating traps, analogous to a dual input atomic beam splitter. With the help of direct three-dimensional numerical simulations, we explore the dependence of population distributions on the initial relative phase and the trap moving speed. For non-interacting Bose–Einstein condensates, we find that our numerical results are in good agreement with a simple theoretical prediction. However, for interacting Bose–Einstein condensates, our results show striking differences with the non-interacting case: the Bose–Einstein condensates are always split towards 50:50 in the slow translation regime. This bosonic anti-bunching effect is interpreted as a consequence of complicated flow patterns due to atomic interactions.

S. Chaturvedi, Narasimhaiengar Mukunda, R. Simon

Azhar Iqbal, Pervez Amirali Hoodbhoy, Derek Abbott

An Urdu translation of the landmark article by Einstein, Podolsky and Rosen from the year 1935 is presented with the hope that it will be of academic and research interest to the readers in that language.

Guido Bacciagaluppi, Elise Crull

This is a translation of notes by Schrödinger wherein he draws the implications of Einstein’s photon-box thought experiment.