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Matrix product simulations of non-equilibrium steady states of quantum spin chains
Tomaz Prosen, Marko Znidaric
Time-dependent density matrix renormalization group method with a matrix product ansatz is employed for explicit computation of non-equilibrium steady state density operators of se…
Complexity of thermal states in quantum spin chains
Marko Znidaric, Tomaz Prosen, Iztok Pizorn
We study quantum correlations and complexity of simulation, characterized by quantum mutual information and entanglement entropy in operator space respectively, for thermal states…
Quantum phase transition in a far from equilibrium steady state of XY spin chain
Tomaz Prosen, Iztok Pizorn
Using quantization in the Fock space of operators we compute the non-equilibrium steady state in an open Heisenberg XY spin 1/2 chain of finite but large size coupled to Markovian…
Third quantization: a general method to solve master equations for quadratic open Fermi systems
Tomaz Prosen
The Lindblad master equation for an arbitrary quadratic system of n fermions is solved explicitly in terms of diagonalization of a 4n x 4n matrix, provided that all Lindblad bath o…