Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Schuricht D"'
Autor:
Di Salvo, E., Moustaj, A., Xu, C., Fritz, L., Mitchell, A. K., Smith, C. Morais, Schuricht, D.
Publikováno v:
Physical Review B 110, 165145 (2024)
The interacting SSH model provides an ideal ground to study the interplay between topologically insulating phases and electron-electron interactions. We study the polarization density as a topological invariant and provide an analytic treatment of it
Externí odkaz:
http://arxiv.org/abs/2408.01421
Publikováno v:
Phys. Rev. B 106, 235132 (2022)
We study the effects of disorder in a one-dimensional model of $\mathbb{Z}_{3}$ Fock parafermions which can be viewed as a generalization of the prototypical Kitaev chain. Exact diagonalization is employed to determine level statistics, participation
Externí odkaz:
http://arxiv.org/abs/2210.02901
Publikováno v:
Phys. Rev. Research 1, 022006 (2019)
We study the time evolving currents flowing in an interacting, ring-shaped nanostructure after a bias voltage has been switched on. The source-to-drain current exhibits the expected relaxation towards its quasi-static equilibrium value at a rate $\Ga
Externí odkaz:
http://arxiv.org/abs/1903.01721
Publikováno v:
Phys. Rev. B 97, 184302 (2018)
We study the dynamics arising from a double quantum quench where the parameters of a given Hamiltonian are abruptly changed from being in an equilibrium phase A to a different phase B and back (A$\to$B$\to$A). As prototype models, we consider the (in
Externí odkaz:
http://arxiv.org/abs/1803.09242
Publikováno v:
Phys. Rev. Lett. 120, 017701 (2018)
We develop a theory for spin transport and magnetization dynamics in a quantum-dot spin valve, i.e., two magnetic reservoirs coupled to a quantum dot. Our theory is able to take into account effects of strong correlations. We demonstrate that, as a r
Externí odkaz:
http://arxiv.org/abs/1707.03373
Autor:
Karrasch, C., Schuricht, D.
Publikováno v:
Phys. Rev. B 95, 075143 (2017)
We analyze the dynamics of the return amplitude following a sudden quench in the three-state quantum Potts chain. For quenches crossing the quantum critical point from the paramagnetic to the ferromagnetic phase, the corresponding rate function is no
Externí odkaz:
http://arxiv.org/abs/1701.04214
Autor:
Karrasch, C., Schuricht, D.
Publikováno v:
Phys. Rev. B 87, 195104 (2013)
We investigate the dynamics following sudden quenches across quantum critical points belonging to different universality classes. Specifically, we use matrix product state methods to study the quantum Ising chain in the presence of two additional ter
Externí odkaz:
http://arxiv.org/abs/1302.3893
Publikováno v:
EPL 102 (2013) 57003
We study linear response and nonequilibrium steady-state thermoelectric transport through a single-level quantum dot tunnel coupled to two reservoirs held at different temperatures as well as chemical potentials. A fermion occupying the dot interacts
Externí odkaz:
http://arxiv.org/abs/1301.3355
Publikováno v:
Phys. Rev. B 87, 245115 (2013)
We present analytic results for the finite-frequency current noise and the nonequilibrium ac conductance for a Kondo quantum dot in presence of a magnetic field. Using the real-time renormalization group method, we determine the line shape close to r
Externí odkaz:
http://arxiv.org/abs/1211.7072
Publikováno v:
Phys. Rev. Lett. 109, 126406 (2012)
We provide strong evidence that the relaxation dynamics of one-dimensional, metallic Fermi systems resulting out of an abrupt amplitude change of the two-particle interaction has aspects which are universal in the Luttinger liquid sense: The leading
Externí odkaz:
http://arxiv.org/abs/1205.2091