As far as I can understand the abstract (I did not shell out the $29), they register multiple red-shifted and blue-shifted photons, with their frequencies forming the expected stripe-like interference picture. They say: «The separation between time slits determines the period of oscillations in the frequency spectrum», that is, these "stripes" are not separated by space (red and blue circles) but rather by time. That is, the light quickly changes between red / blue shifted, as if we were traveling through the spatial interference picture, not looked at it "from above".
So yes, I think our understanding more or less matches: they likely register red/blue shifted photons with small time delays between the same "colors".
Side comment: This is the first time I've seen my preferred username used for its actually meaning. And I've been using it for almost 3 decades. Neat.
I was going to use tellurian, which means an inhabitant of the earth, then saw that tellurion was sometimes used as an alternate spelling in an old Webster's dictionary I was looking through, and preferred it.
And yes, I did search through a dictionary to find a username.
That's because of the way patent law is worded. I don't remember the exact wording (and i'm to lazy to look it up) but it's close to "a patent shall be granted except..."
Basically, they have to grant the patent if they can't come up with a good reason not to.
Perhaps changing the law to be worded "a patent shall not be granted except". Then require the applicants to show how their patent fits the requirements.
