Two Slit Experiment with Quantum Eraser Realized with RF Components

For the optical version see: Home Made Quantum Eraser Experiment Using Laser 2 Slits Polarizer Material

I wanted to think about this experiment in terms of RF components to see if there was anything new I could extract.  In RF speak here is what happens. 

Description I.T.O. Standard Radio Frequency Speak

With NO Eraser

• Generator / oscillator on a microstrip board generates a vertically polarized wave
• The wave travels down the microstrip to 2 vertically polarized antennas at the edge of the board spaced strategically to give conveniently spaced interference pattern
• Each antenna output next encounters a polarizer oriented at 45 degrees to vertical.
• In RF speak we say that the RF wave is re-radiated from the polarizers. 1/2 of the wave is transmitted and 1/2 is reflected at each polarizer
• The 2 separate streams are now in orthogonal polarizations.  Thus I assume they will not be able to interfer with one another at the screen.  
• The non-interfering pattern is seen on the screen
• A total power loss of 1/2 is seen,

With Eraser

• Generator / oscillator on a microstrip board generates a vertically polarized wave
• The wave travels down the microstrip to 2 vertically polarized antennas at the edge of the board spaced strategically to give conveniently spaced interference pattern
• Each antenna output next encounters a polarizer oriented at 45 degrees to vertical.
• In RF speak we say that the RF wave is re-radiated from the polarizers. 1/2 of the wave is transmitted and 1/2 is reflected at each polarizer
• The 2 separate streams are now in orthogonal polarizations.  Thus I assume they will not be able to interfer with one another at the screen if left as is.
• ERASURE:  The 2 separate streams encounter the vertical polarizer.  The RF wave is re-radiated from the polarizer with 1/2 going back toward the generator and 1/2 going to the screen.  The polarization of stream 1 and 2 are now aligned and thus complete constructive and destructive interference is possible. 
• The interfering pattern is seen on the screen.
• A total power loss of 1/4 is seen due to each passing through 2 polarizer stages each oriented at 45 degrees to the stream.

Observation

It is easy to see why there is no interference in the first case.  We have arranged for each path to be in orthogonal polarization states. They can not interfere when orthogonal.