Quantum Eraser Using A Modified Stern-Gerlach Setup
  We propose a new setup to demonstrate quantum eraser, using spin-1/2 particles in a modified Stern-Gerlach setup, with a double slit. The "which-way" information can be erased simply by applying a transverse magnetic field with an additional magnet, resulting in the emergence of two complementary staggered interference patterns. Use of the classic Stern-Gerlach setup, and the unweaving of the washed out interference without any coincident counting, is what makes this proposal novel. 
Tabish Qureshi, Zini Rahman (Centre for Theoretical Physics, J.M.I.,   New Delhi.)