Skip to yearly menu bar Skip to main content


Poster
in
Workshop: Machine Learning and the Physical Sciences

Energy based models for tomography of quantum spin-lattice systems

Abhijith Jayakumar · Marc Vuffray · Andrey Lokhov


Abstract:

We present a novel method to learn Energy-Based Models (EBM) from quantum tomography data. We represent quantum states via distributions generated by generalized measurements and use state-of-the-art algorithms for energy function learning to obtain a representation of these states as classical Gibbs distributions. Our results show that this method is especially well suited for learning quantum thermal states. For the case of ground states, we find that the learned EBMs often have an effective temperature that makes learning easier, especially in the paramagnetic phase.

Chat is not available.