&gt; Also why is this called Quantum MCMC rather than just normal Markov Chain Monte Carlo?<p>I had the same question, so I looked it up. From <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Quantum_Monte_Carlo" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Quantum_Monte_Carlo</a> :<p>&quot;Quantum Monte Carlo encompasses a large family of computational methods whose common aim is the study of complex quantum systems. One of the major goals of these approaches is to provide a reliable solution (or an accurate approximation) of the quantum many-body problem.&quot;