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Title:
Implicit Disentangling for Quantum Many-Body States
Speaker:
Abstract:
The process of disentangling using properly chosen unitary tensors is key for efficient representations of ground states in quantum many-body systems. In this talk I will discuss a recent work (arXiv1707.05770) where an alternative method for disentangling states called implicit disentangling is introduced. Implicit disentangling, which is based on measurement-type operations as opposed to unitary gates, allows for the removal of entanglement between blocks in a quantum state using only local operators acting within each block. Applications of implicit disentangling towards the study of quantum many-body systems will be discussed, including its use as part of a renormalization group (RG) method to extract conformal data from ground states of quantum critical systems.
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