no code implementations • 5 Feb 2021 • Xin Zhang, Andreas Klümper, Vladislav Popkov
Bethe eigenstates are described by two complementary sets of Bethe Ansatz equations for regular roots, one for each invariant subspace.
Statistical Mechanics Mathematical Physics Mathematical Physics Quantum Physics
no code implementations • 5 Feb 2021 • Vladislav Popkov, Xin Zhang, Andreas Klümper
The phantom Bethe roots lead to degeneracies between different magnetization sectors in the periodic case and to the appearance of spin helix states (SHS), i. e. periodically modulated states of chiral nature in both open and closed systems.
Statistical Mechanics Mathematical Physics Mathematical Physics Quantum Physics
no code implementations • 14 Jan 2021 • Vladislav Popkov, Carlo Presilla
We consider an open quantum system with dissipation, described by a Lindblad Master equation (LME).
Quantum Physics Statistical Mechanics Mathematical Physics Mathematical Physics Exactly Solvable and Integrable Systems