We review concepts and methods associated with quantum discord and related topics. We also describe their possible connections with other aspects of quantum information and …
The Heisenberg triangular-lattice quantum spin liquid and its phase transitions to nearby magnetic orders have received much theoretical attention, but clear experimental …
We consider multipartite states of qubits and prove that their bipartite quantum entanglement, as quantified by the concurrence, satisfies a monogamy inequality …
We demonstrate how quantum entanglement can be directly witnessed in the quasi-1D Heisenberg antiferromagnet KCuF 3. We apply three entanglement witnesses—one tangle …
By means of the time dependent density matrix renormalization group algorithm we study the zero-temperature dynamics of the Von Neumann entropy of a block of spins in a …
P Laurell, A Scheie, CJ Mukherjee, MM Koza… - Physical Review Letters, 2021 - APS
The lack of methods to experimentally detect and quantify entanglement in quantum matter impedes our ability to identify materials hosting highly entangled phases, such as quantum …
We consider systems of interacting spins and study the entanglement that can be localized, on average, between two separated spins by performing local measurements on the …
Entanglement not only plays a crucial role in quantum technologies, but is key to our understanding of quantum correlations in many-body systems. However, in an experiment …
P Buonsante, A Vezzani - Physical review letters, 2007 - APS
We analyze the quantum phase transition in the Bose-Hubbard model borrowing two tools from quantum-information theory, ie, the ground-state fidelity and entanglement measures …