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Št. zadetkov: 2
Switching pure states of the dissipative Heisenberg XXZ chain by local magnetic fields
Vladislav Popkov, Mario Salerno
Izvirni znanstveni članek
Oznake: kvantna mehanika;fizika kondenzirane snovi;quantum mechanics;condensed matter physics;
The effects of a local magnetic field on nonequilibrium stationary states (NESSs) of the open quantum XXZ spin chain are investigated with a Lindblad master equation approach in the limit of strong dissipation. The local magnetic field is applied to a single bulk spin of the chain while the ends are ...
Leto: 2019 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Manifolds of exceptional points and effective Zeno limit of an open two-qubits system
Vladislav Popkov, Carlo Presilla, Mario Salerno
Izvirni znanstveni članek
Oznake: neravnovesna statistična mehanika;kvantna statistična mehanika;odprti kvantni sistemi;nonequilibrium statistical mechanics;quantum statistical mechanics;open quantum systems;
We analytically investigate the Liouvillian exceptional point manifolds (LEPMs) of a two-qubits open system, where one qubit is coupled to a dissipative polarization bath. Exploiting a $Z_2$ symmetry, we block diagonalize the Liouvillian and show that one symmetry block yields two planar LEPMs while ...
Leto: 2025 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Št. zadetkov: 2
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