Many-body spin rotation by adiabatic passage in spin-1/2 XXZ chains of ultracold atoms
Quantum Science and Technology IOP Publishing 8:3 (2023) 035018
Can multipartite entanglement be characterized by two-point connected correlation functions?
Journal of Physics A: Mathematical and Theoretical IOP Publishing 56:30 (2023) 305302-305302
Abstract:
We discuss under which conditions multipartite entanglement in mixed quantum states can be characterized only in terms of two-point connected correlation functions, as it is the case for pure states. In turn, the latter correlations are defined via a suitable combination of (disconnected) one- and two-point correlation functions. In contrast to the case of pure states, conditions to be satisfied turn out to be rather severe. However, we were able to identify some interesting cases, as when the point-independence is valid of the one-point correlations in each possible decomposition of the density matrix, or when the operators that enter in the correlations are (semi-)positive/negative definedCommensurate and incommensurate 1D interacting quantum systems
(2023)
Kaleidoscopes of Hofstadter butterflies and Aharonov-Bohm caging from 2n-root topology in decorated square lattices
Physical Review Research American Physical Society (APS) 5:2 (2023) 023110
Variational Quantum Algorithms for Computational Fluid Dynamics
AIAA Journal American Institute of Aeronautics and Astronautics (AIAA) 61:5 (2023) 1885-1894