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Every little quantum helps

Today we’re gonna play a guessing quiz.
First, pick a little marble from your drawer.
Then push it into a mystery box, whose core
is like a maze of many paths. Now, whizz,

Look at the ball when it comes out and guess:
Which way, inside the box, did it go through?
Was it path number one, or three, or two?
Let’s try and assess your chances of success.

If your marble’s a cheap, generic brand,
the various paths won’t have that much effect.
But, if you choose a rather high-spec ball,

With every different turn, during its roll,
a distinct shine the sphere’s going to reflect.
Just spot the change and win! Do you understand?

Let me briefly expand
and give you the tagline (pardon the garble):
Every quantum resource is a good marble.




About this #PoetRL

  • Paper Title:  Operational Advantage of Quantum Resources in Subchannel Discrimination
  • Authors:  Ryuji Takagi, Bartosz Regula, Kaifeng Bu, Zi-Wen Liu, and Gerardo Adesso
  • Reference:  Phys. Rev. Lett. 122, 140402 – Published 10 April 2019 (Editors' Suggestion)
  • URL:  https://doi.org/10.1103/PhysRevLett.122.140402
  • Poem by:  gerardo.adesso@gmail.com  
  • #PoetRL ID:  ¶7
  • Comments

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