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quant-ph2021★ 10 cited
Understanding the propagation of excitations in quantum spin chains with different kind of interactions
Alejandro Ferrón, Pablo Serra, Omar Osenda
The dynamical behaviour of the quantum state of different quantum spin chains, with designed site dependent interaction strengths, is analyzed when the initial state belongs to the…
quant-ph2021★ 17 cited
Pretty good quantum state transfer on isotropic and anisotropic Heisenberg spin chains with tailored site dependent exchange couplings
Pablo Serra, Alejandro Ferrón, Omar Osenda
Using a global optimization algorithm we obtain spin chains with site-dependent exchange coefficients which allow almost perfect quantum state transfer between the extremes of the…