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quant-ph2012★ 312 cited
Assisted finite-rate adiabatic passage across a quantum critical point: Exact solution for the quantum Ising model
Adolfo del Campo, Marek M. Rams, Wojciech H. Zurek
The dynamics of a quantum phase transition is inextricably woven with the formation of excitations, as a result of the critical slowing down in the neighborhood of the critical poi…
quant-ph2012
A quantum phase transition in a quantum external field: Superposing two magnetic phases
Marek M. Rams, Michael Zwolak, Bogdan Damski
We study an Ising chain undergoing a quantum phase transition in a quantum magnetic field. Such a field can be emulated by coupling the chain to a central spin initially in a super…