Hello,

At the beginning of summer I started studying quantum mechanics in my spare 
time. I realized that many of the concepts in quantum mechanics are similar to 
"Gremlin mechanics." In particular, both systems exploit particle/traverser 
superposition. However, what Gremlin doesn't have is an explicit notion of wave 
dynamics -- a fundamental component of quantum systems. That is, the traversers 
in Gremlin only constructively interfere (called "bulking"), they never 
destructively interfere. Upon further exploration, I realized that there are 
very few articles that discuss the use of waves in graph/network theory. Thus, 
either there is a rich vein of untapped ideas or the endeavor is a dead end 
with little to be leveraged. I leaned towards the prior assumption given that 
discrete quantum mechanics is conveniently modeled as a wave on a graph. This 
wave is known as the famous "wavefunction" of quantum mechanics' wave-particle 
duality thesis. 

In order to learn, I teach. Thus, for GraphDay in January, I decided to present 
a talk called "Quantum Processes in Graphs." 
[http://graphday.com/sessions/#rodriguez] However, to ensure that my knowledge 
is sound, I thought it prudent to first write an article on the topic. This 
article is entitled "Quantum Walks with Gremlin" and you can find it referenced 
in the tweet below.

        https://twitter.com/twarko/status/667784364210569216

Interestingly, there is little difference between classical wave mechanics and 
quantum mechanics. I suppose the difference can be naively stated as: "quantum 
mechanics ultimately 'does something' with the wave." In particular, the 
quantum wavefunction "collapses" to form a particle upon 
observation/measurement (in the lexicon of the Copenhagen interpretation). 
While in classical wave mechanics, the wave itself is the ultimate object of 
concern. Hopefully, the aforementioned article (and future presentation in 
January) will allow us to kill two birds with one stone -- we learn how to 
model waves in graphs and, as a nice amendment, we will also learn about 
quantum computing. We gain all of this from the familiar perspective of the 
Gremlin graph traversal machine and language.

Enjoy,
Marko.

http://markorodriguez.com

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