Three-qubit Heisenberg XY Chain with Nearest-neighbour Interaction in the Ultrastrong Coupling Regime of Superconducting Circuits
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DOI: 10.1007/s10773-019-04021-x
Abstract: We explore the simulation of three-qubit Heisenberg XY chain with nearest-neighbour interaction in a system of superconducting charge qubits ultrastrongly coupled to a LC resonator. By resorting to parametric modulation of external magnetic fields, the… read more here.
Keywords: neighbour interaction; chain nearest; nearest neighbour; three qubit ... See more keywords
State space geometry of the spin-1 antiferromagnetic Heisenberg chain
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DOI: 10.1103/physrevb.107.174427
Abstract: We study the phase diagram of the spin-1 antiferromagnetic Heisenberg chain with uniaxial anisotropy and applied magnetic field in terms of the genuine multipartite entanglement as witnessed by the mean quantum Fisher information density. By… read more here.
Keywords: state space; state; heisenberg chain; geometry ... See more keywords