Zobrazeno 1 - 10
of 483
pro vyhledávání: '"Thorwart M"'
Publikováno v:
Phys. Rev. B 103, 054420 (2021)
We study how impurities influence the current-induced dynamics of magnetic Skyrmions moving in a racetrack geometry. For this, we solve numerically the generalized Landau-Lifshitz-Gilbert equation extended by the current-induced spin transfer torque.
Externí odkaz:
http://arxiv.org/abs/2011.06027
Publikováno v:
Phys. Rev. Lett. 126, 163201 (2021)
Anyons with arbitrary exchange phases exist on 1D lattices in ultracold gases. Yet, known continuum theories in 1D do not match. We derive the continuum limit of 1D lattice anyons via interacting bosons. The theory maintains the exchange phase period
Externí odkaz:
http://arxiv.org/abs/2008.00003
Publikováno v:
Phys. Rev. Lett. 124, 207202 (2020)
Magnetic skyrmions can be driven by an applied spin-polarized electron current which exerts a spin-transfer torque on the localized spins constituting the skyrmion. However, the longitudinal dynamics is plagued by the skyrmion Hall effect which cause
Externí odkaz:
http://arxiv.org/abs/1902.09521
Publikováno v:
Phys. Rev. A 95, 043604 (2017)
We investigate a one-dimensional Bose-Hubbard model in a parametrically driven global harmonic trap. The delicate interplay of both the local atom interaction and the global driving allows to control the dynamical stability of the trapped quantum man
Externí odkaz:
http://arxiv.org/abs/1612.04967
Autor:
Komnik, A., Thorwart, M.
Publikováno v:
Eur. Phys. J. B, 89 11 (2016) 244
We study the impact of a time-dependent external driving of the lattice phonons in a minimal model of a BCS superconductor. Upon evaluating the driving-induced vertex corrections of the phonon-mediated electron-electron interaction, we show that para
Externí odkaz:
http://arxiv.org/abs/1607.03858
Publikováno v:
Phys. Rev. Lett. 115, 230403 (2015)
It is well known that the bosonic Hubbard model possesses a Mott insulator phase. Likewise, it is known that the Dicke model exhibits a self-organized superradiant phase. By implementing an optical lattice inside of a high finesse optical cavity both
Externí odkaz:
http://arxiv.org/abs/1511.00850
Publikováno v:
Phys. Rev. B 92, 045431 (2015)
We show that in the presence of ferromagnetic electronic reservoirs and spin-dependent tunnel couplings, molecular vibrations in nonmagnetic single molecular transistors induce an effective intramolecular exchange magnetic field. It generates a finit
Externí odkaz:
http://arxiv.org/abs/1505.03361
Symmetry breaking caused by geometric fluctuations can enable processes that are otherwise forbidden. An example is a perylene bisimide dyad whose dipole moments are perpendicular to each other. F\"orster-type energy transfer is thus forbidden at the
Externí odkaz:
http://arxiv.org/abs/1412.1263
Autor:
Nalbach, P., Achner, A. J. A., Frey, M., Grosser, M., Gawelda, W., Galler, A., Assefa, T., Bressler, C., Thorwart, M.
We study the relaxation dynamics of photoexcited Fe-II complexes dissolved in water and identify the relaxation pathway which the molecular complex follows in presence of a hydration shell of bound water at the interface between the complex and the s
Externí odkaz:
http://arxiv.org/abs/1404.2754
Publikováno v:
Phys. Rev. Lett. 113, 076602 (2014)
We investigate cooling of a vibrational mode of a magnetic quantum dot by a spin-polarized tunneling charge current, exploiting the interaction between the magnetization and the vibration. The spin-polarized charge current polarizes the magnetic nano
Externí odkaz:
http://arxiv.org/abs/1401.5724