Experimental Apparatus

Yuma Nakamura

Giacomo Mauro D’Ariano, Lorenzo Maccone, Paoloplacido Lo Presti

By quantum calibration we name an experimental procedure apt to completely characterize an unknown measurement apparatus by comparing it with other calibrated apparatuses. Here we show how to achieve the calibration of an arbitrary measuring apparatus, by using it in conjunction with a ``tomographer'' in a correlation setup with an input bipartite system. The method is robust to imperfections of the tomographer, and works for practically any input state of the bipartite system.

Phyllis Chiasson

S. J. Kim, Hoon Yu, Ye Lin Moon +1 more

We construct a compact experimental apparatus for producing a high repetition rate ultra cold87Rb based on an external atom chip. In this system, we successfully produce Bose-Einstein condensation(BEC) with about 5 sec repetition period.

Daniel Linnemann

Marco Di Mauro, L M Gratton, Pasquale Onorato +1 more

We describe a simple experimental apparatus which allows the quantitative study of the classical analog of a quantum eraser. The apparatus consists of a laser diode, a thin wire, two polarizers providing the which-way information, and a third polarizer which erases that information. The experimental results are analyzed with the aid of a digital camera and the Tracker application, and are compared with a novel classical computation of the interference patterns, which is presented as well.