20 citations · 45 across the 4 of their papers we have counts for
4 papers
Excited states from local effective Hamiltonians of matrix product states and their entanglement spectrum transition
Denise Cocchiarella, Mingru Yang, Yueshui Zhang +3
Solving excited states is a challenging task for interacting systems. For one-dimensional critical systems, however, excited states can be directly accessed from the eigenvectors o…
Low-temperature Gibbs states with tensor networks
Denise Cocchiarella, Mari Carmen Bañuls
We introduce a tensor network method for approximating thermal equilibrium states of quantum many-body systems at low temperatures. Whereas the usual approach starts from infinite…
Entanglement distance for arbitrary -qudit hybrid systems
Denise Cocchiarella, Stefano Scali, Salvatore Ribisi +3
The achievement of quantum supremacy boosted the need for a robust medium of quantum information. In this task, higher-dimensional qudits show remarkable noise tolerance and enhanc…
Entanglement distance for an arbitrary state of M qubits
Denise Cocchiarella, Stefano Scali, Salvatore Ribisi +3
We propose a measure of entanglement that can be computed for any pure state of an -qubit system. The entanglement measure has the form of a distance that we derive from an adap…