Nikodem Szpak  Publications

Relaxation to persistent currents in a Hubbard trimer coupled to fermionic baths
with Gernor Schaller, Ralf Schützhold and Jürgen König
arXiv:2311.06331 [condmat.strel]  Quasiparticle propagation across semiconductorMott insulator interfaces
with Jan Verlage, Friedemann Queisser, Jürgen König, Peter Kratzer, and Ralf SchützholdarXiv:2303.13507 [condmat.strel]

Electronic transport in bent carbon nanotubeswith Eric Kleinherbers and Thomas StegmannPhys. Rev. B 107, 195424 (2023), arXiv:2302.01395 [condmat.meshall]

Graphene nanoelectromechanical systems as valleytronic deviceswith Walter Ortiz and Thomas Stegmann
Phys. Rev. B 106, 035416 (2022), arXiv:2202.01739 [condmat.meshall]

Environmentinduced decay dynamics of antiferromagnetic order the MottHubbard systemswith Gernot Schaller, Friedemann Queisser, Jürgen König and Ralf Schützhold
Phys. Rev. B 105, 115139 (2022), arXiv:2112.04956 [condmat.strel]
 Gradientindex electron optics in graphene pn junctions
with Emmanuel ParedesRocha, Yonatan BetancurOcampo and Thomas Stegmann
Phys. Rev. B 103, 045404 (2021), arXiv:2009.05535 [condmat.meshall, condmat.mtrlsci]
 Relaxation dynamics in a Hubbard dimer coupled to fermionic baths: phenomenological description and its microscopic foundation
with Eric Kleinherbers, Jürgen König and Ralf Schützhold
Phys. Rev. B 101, 125131 (2020), arXiv:1910.04130 [condmat.strel, quantph]
 Quantum simulation of spontaneous pair creation in 2D optical lattices
with Leonhard Klar and Ralf Schützhold
arXiv:1901.09880 [quantph], submitted
 Time reversal and quantum Loschmidt echo in optical lattices
with Ralf Schützhold
arXiv:1901.05941 [quantph], submitted
 Current splitting and valley polarization in elastically deformed graphene
with Thomas Stegmann
2D Materials 6 (2019) 015024, arXiv:1806.09576 [condmat.meshall]
 Current flow paths in deformed graphene: from quantum transport to classical trajectories in curved space
with Thomas Stegmann
New J. Phys. 18 (2016) 053016, arXiv:1512.06750 [condmat.meshall]
 Pulse shape dependence in the dynamically assisted SauterSchwinger effect
with Malte F. Linder, Christian Schneider, Joachim Sicking, and Ralf Schützhold
Phys. Rev. D 92, 085009 (2015), arXiv:1505.05685 [hepth]
 Curved spacetimes in the lab
arXiv:1410.1567 [quantph]
 A sheet of graphene  quantum field in a discrete curved space
100 Years after Einstein in Prague, Series: Springer Proceedings in Physics, Vol. 157 (2014), Bičák, Jiří, Ledvinka, Tomáš (Eds.)
 Optical lattice quantum simulator for QED in strong external fields: spontaneous pair creation and the SauterSchwinger effect
with R. Schützhold
New J. Phys. 14 (2012) 035001, quantph/1109.2426
 Quantum simulator for the Schwinger effect with atoms in bichromatic optical lattices
with R. Schützhold
Phys. Rev. A 84, 050101(R) (2011), quantph/1103.0541
 Dynamics near the threshold for blowup in the onedimensional focusing nonlinear KleinGordon equation
with P, Bizon and T. Chmaj
J. Math. Phys. 52, 103703 (2011), math.AP/1012.1033
 Large data pointwise decay for defocusing semilinear wave equations
with R. Bieli
math.AP/1002.3623, submitted
 Latetime attractor for the cubic nonlinear wave equation
J. Math. Phys. 51, 082901 (2010), mathph/0909.1264
 Comment on ``Latetime tails of a selfgravitating scalar field revisited'' by Bizon et al: The leading order asymptotics
Class. Quantum Grav. 26 (2009) 248001, grqc/0907.5146
 Asymptotics from scaling for nonlinear wave equations
Comm. PDE, 35 (10), pp. 18761890 (Oct. 2010), mathph/0907.4287
 Global pointwise decay estimates for defocusing radial nonlinear wave equations
with R. Bieli
Comm. PDE, 36 (2), pp. 205215 (Feb. 2011), math.AP/0903.0799, Institut MittagLeffler preprint
 Linear and nonlinear tails II: exact decay rates in spherical symmetry"
with P. Bizon, T. Chmaj and A. Rostworowski
Journal of Hyberbolic Differential Equations (JHDE), Vol. 6 (No. 1), pp. 107125 (Mar. 2009), mathph/0712.0493
 Linear and nonlinear tails I: general results and perturbation theory
Journal of Hyberbolic Differential Equations (JHDE), Vol. 5 (No. 4), pp. 741765 (Dec. 2008), mathph/0710.1782
 Simple proof of a useful pointwise estimate for the wave equation
mathph/0708.2801, submitted
 Weighted$L^\infty$ and pointwise spacetime decay estimates for wave equations with potentials and initial data of low regularity
mathph/0708.1185, submitted
 Quasinormal mode expansion and the exact solution of the Cauchy problem for wave equations
grqc/0411050
 Spontaneous particle creation within the external field approximation of QED
Proc. Appl. Math. Mech. 7, 11414011141402 (2007)
 Spontaneous particle creation in timedependent overcritical fields
J. Phys. A: Math. Theor. 41 (2008) 164059 (7pp), hepth/0604101
 Spontaneous emission of light from atoms: the model
with P. Marecki
Ann. d. Phys. 14 (No. 7), pp. 428437 (2005), quantph/0407186
 'Spontaneous pair creation' in strong electric fields of Highly Charged Ions
NIMB, Vol: 205, May, 2003, pp: 3035
 Relaxation to unstable attractors in nonlinear wave equations
Theoretical and Mathematical Physics, Vol. 127, No. 3, pp. 817826, 2001