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quant-ph2022
Generalized Almost Complete Revivals in quantum spin chains
Igor Ermakov
The conception of almost complete revivals has been introduced recently. In a quantum many-body system local observable may exhibit an almost complete revival to its maximal value…
quant-ph2019
Time dynamics of Bethe ansatz solvable models
Igor Ermakov, Tim Byrnes
We develop a method for finding the time evolution of exactly solvable models by Bethe ansatz. The dynamical Bethe wavefunction takes the same form as the stationary Bethe wavefunc…
quant-ph2017★ 56 cited
Quantum coherence of planar spin models with Dzyaloshinsky-Moriya interaction
Chandrashekar Radhakrishnan, Igor Ermakov, Tim Byrnes
The quantum coherence of one dimensional planar spin models with the Dzyaloshinsky-Moriya interaction is investigated. The anisotropic XY model, the isotropic XX model and the tran…