A. Wild, J. Kierig, J. Sailer, J. W. Ager, E. E. Haller, G. Abstreiter, S. Ludwig, and D. Bougeard
"Few electron double quantum dot in an isotopically purified 28Si quantum well "
Appl. Phys. Lett. 100, 143110 (2012) © 2012 American Institute of Physics
D. Taubert, D. Schuh, W. Wegscheider, and S. Ludwig
"Determination of energy scales in few-electron double quantum dots"
Rev. Sci. Instrum. 82, 123905 (2011) ©
2011 American Institute of Physics
arXiv:1105.3570
D. Taubert, G. J. Schinner, C. Tomaras, H. P. Tranitz, W. Wegscheider, and S. Ludwig
"An electron jet pump: The Venturi effect of a Fermi liquid "
J. Appl. Phys. 109, 102412 (2011) ©
2011 American Institute of Physics
arXiv:1011.2289
D. Taubert, C. Tomaras, G. J. Schinner, H. P. Tranitz, W. Wegscheider, S. Kehrein, and S. Ludwig
"Relaxation of hot electrons in a degenerate two-dimensional electron system: transition to one-dimensional scattering "
Phys. Rev. B 83, 235404 (2011) © 2011 American Physical Society
arXiv:1104.1645
M.G. Prokudina, V.S. Khrapai, S. Ludwig, J.P. Kotthaus, H.P. Tranitz and W. Wegscheider
"Acoustic-phonon-based interaction between coplanar quantum circuits in a magnetic field"
Phys. Rev. B 82, 201310(R) (2010)
arXiv:1008.0963
A. Wild, J. Sailer, J. Nützel, G. Abstreiter, S. Ludwig, D. Bougeard
"Electrostatically defined quantum dots in a Si/SiGe heterostructure"
New J. Phys. 12, 113019 (2010)
arXiv:1007.2404
D. Harbusch, S. Manus, H. P. Tranitz, W. Wegscheider, and S. Ludwig
"Radio frequency pulsed-gate charge spectroscopy on coupled quantum dots"
Phys. Rev. B 82, 195310 (2010)
arXiv:1006.5554
A. Siddiki, J. Horas, D. Kupidura, W. Wegscheider, and S. Ludwig
"Asymmetric nonlinear response of the quantized Hall effect"
New Journal of Physics 12, 113011 (2010)
arXiv:0911.4832
D. Taubert, G. J. Schinner, H. P. Tranitz, W. Wegscheider, C. Tomaras, S. Kehrein, and S. Ludwig
"Electron-avalanche amplifier based on the electronic Venturi effect"
Phys. Rev. B 82, 161416(R) (2010)
arXiv:1001.5201
D. Harbusch, D. Taubert, H. P. Tranitz, W. Wegscheider, and S. Ludwig
"Phonon-mediated vs. Coulombic Back-Action in Quantum Dot circuits"
Phys. Rev. Lett. 104, 196801 (2010)
arXiv:0910.4093
C. Rössler, M. Herz, M. Bichler, and S. Ludwig
"Freely suspended quantum point contacts"
Solid State Communications 150, 861-864 (2010)
arXiv:0905.3969
A. Siddiki, J. Horas, J. Moser, W. Wegscheider, and S. Ludwig
"Interaction mediated asymmetries of the quantized Hall effect"
Eur. Phys. Lett. 88, 17007 (2009)
arXiv:0905.0204
G.J. Schinner, H.P. Tranitz, W. Wegscheider, J.P. Kotthaus, and S. Ludwig
"Phonon-mediated non-equilibrium interaction between nanoscale devices"
Phys. Rev. Lett. 102, 186801 (2009)
arXiv:0901.3520
J. Sailer, V. Lang, G. Abstreiter, G. Tsuchiya, K. M. Itoh, J. W. Ager, E. E. Haller, D. Kupidura, D. Harbusch, S. Ludwig, and D. Bougeard
"A Schottky top-gated two-dimensional electron system in a nuclear spin free Si/SiGe heterostructure"
Phys. Status Solidi RRL 3, No. 2, 61-63 (2009)
arXiv:0901.2433
C. Rossler, K.-D. Hof, S. Manus, S. Ludwig, J. P. Kotthaus, J. Simon,
A. W. Holleitner, D. Schuh, and W. Wegscheider
"Optically induced transport properties of freely suspended semiconductor submicron channels"
Appl. Phys. Lett. 93, 071107-1 (2008)
arXiv:0805.2230
V.S. Khrapai, S. Ludwig , J.P. Kotthaus and H.P. Tranitz , W. Wegscheider
"Nonequilibrium interactions between two quantum circuits"
J. Phys.: Condens. Matter 20, 454205 (2008)
arXiv:0805.0727
D. Taubert, M. Pioro-Ladrière, D. Schröer, D. Harbusch, A.S.
Sachrajda, S. Ludwig
"Telegraph noise in coupled quantum dot circuits induced by a
quantum point contact"
Phys. Rev. Lett. 100, 176805 (2008)
arXiv:0801.4002
K.-D. Hof, C. Rossler, W. Wegscheider, S. Ludwig, A.W. Holleitner
"Optically induced charge transport through submicron channels"
Physica E 40, 1739-1741 (2008)
V.S. Khrapai, S. Ludwig, J.P. Kotthaus, H.P. Tranitz and W. Wegscheider
" Nonequilibrium phenomena in adjacent electrically isolated nanostructures"
Physica E 40, 995-998 (2008)
arXiv:0805.0727
C. Rossler, M. Bichler, D. Schuh, W. Wegscheider and S. Ludwig
" Laterally defined freely suspended quantum dots in GaAs/AlGaAs heterostructures"
Nanotechnology 19, 165201 (2008)
arXiv:0802.4383
J. Horas, A. Siddiki, J. Moser, W. Wegscheider and S. Ludwig
"Investigations on unconventional aspects in the quantum Hall regime of
narrow gate defined channels"
Physica E 40, 1130-1132 (2008)
arXiv:0707.1142
D. Schröer, A.D. Greentree, L. Gaudreau, K. Eberl, L.C.L. Hollenberg, J.P.
Kotthaus, S. Ludwig
"An electrostatically defined serial triple quantum dot charged with few electrons"
Phys. Rev. B 76, 075306 (2007)
arXiv:cond-mat/0703450
V.S. Khrapai, S. Ludwig, J.P. Kotthaus, H.P. Tranitz, and W.
Wegscheider
"Counterflow of electrons in two isolated quantum point contacts"
Phys. Rev. Lett. 99, 096803 (2007)
arXiv:0704.0132
A.K. Hüttel, K. Eberl, and S. Ludwig
"A widely tunable few electron droplet"
J. Phys.: Condens. Matter 19, 236202 (2007)
arXiv:cond-mat/0607248
D.M. Schröer, A.K. Hüttel, K. Eberl, S. Ludwig, M.N. Kiselev, and B.L. Altshuler
"Kondo effect in a one-electron double quantum dot: Oscillations of the Kondo current in a weak magnetic field"
Phys. Rev. B 74, 233301 (2006)
arXiv:cond-mat/0607044
V.S. Khrapai, S. Ludwig, J.P. Kotthaus, H.P. Tranitz, and W. Wegscheider
"A double-dot quantum ratchet driven by an independently biased quantum point contact"
Phys. Rev. Lett. 97, 176803 (2006)
arXiv:cond-mat/0606377
A.K. Hüttel, S. Ludwig, K. Eberl, and J.P. Kotthaus
"Spectroscopy of molecular states in a few-electron double quantum dot"
Physica E 35, 278-284 (2006)
A.K. Huettel, S. Ludwig, H. Lorenz, K. Eberl, J.P. Kotthaus
"Molecular states in a one-electron double quantum dot"
Physica E 34, 488-492 (2006)
arXiv:cond-mat/0507101
A. K. Huettel, S. Ludwig, H. Lorenz, K. Eberl, J. P. Kotthaus
"Direct control of the tunnel splitting in a one-electron double quantum
dot"
Phys. Rev. B 72, 081310 (Rapid Communications) (2005)
arXiv:cond-mat/0501012
P. Nalbach, D. Osheroff, S. Ludwig
"Non-Equilibrium Dynamics of Interacting Tunneling States in Glasses"
Journal of Low Temperature Physics 137, 3/4, 395 (2004)
S. Ludwig, C. Enss
“Dynamics of Interacting OH- and OD-Ions in KCl"
Journal of Low Temperature Physics 137, 3/4, 371 (2004)
S. Ludwig, C. Enss, S. Hunklinger
"Magnetic Field Dependent Atomic Tunneling in Non-Magnetic Glasses"
Physica B 329/333, 1239 (2003)
C. Enss, P. Nagel, S. Ludwig
“Coherent Echoes in Crystals with Tunneling Systems in Magnetic Fields"
Physica B 329/333, 1221 (2003)
S. Ludwig, D. Osheroff
“Field-Induced Structural Aging in Glasses at Ultra Low Temperatures"
Phys. Rev. Lett. 91, 105501 (2003)
arXiv:cond-mat/0305120
S. Ludwig, P. Nalbach, D. Rosenberg, D. Osheroff
"Dynamics of the Destruction and Rebuilding of a Dipole Gap in Glasses"
Phys. Rev. Lett. 90, 105501 (2003)
arXiv:cond-mat/0212164
S. Ludwig, P. Nagel, S. Hunklinger, C. Enss
"Magnetic Field Dependent Coherent Polarization Echoes in Glasses"
Journal of Low Temperature Physics 131, 1/2, 89 (2003)
arXiv:cond-mat/0210221
M. Thesen, R. Kühn, S. Ludwig, C. Enss
"Influence of Random Internal Fields on the Tunneling of OH Defects in NaCl"
Physica B 316/317, 421 (2002)
arXiv:cond-mat/0110199
S. Ludwig, F. Zeller, C. Enss, K. Laßmann
"Phonon Spectroscopy of Tunneling States in NaCl:OD"
Physica B 316/317, 424 (2002)
C. Enss, S. Ludwig
“Evidence for Magnetic Field Induced Changes of the Phase of Tunneling
States: Spontanious Echoes in (KBr)1-x(KCN)x in Magnetic Fields"
Phys. Rev. Lett. 89, 075501 (2002)
arXiv:cond-mat/0204348
S. Ludwig, C. Enss, P. Strehlow, S. Hunklinger
“Direct Coupling of Magnetic Fields to Tunneling Systems in Glasses"
Phys. Rev. Lett. 88, 075501 (2002)
S. Ludwig, C. Enss, S. Hunklinger
"Decay of Spontaneous Echoes in Amorphous B2O3 at Very Low Temperatures"
Physica B 284, 1139 (2000)
S. Ludwig, A. Brederek, C. Enss, C. P. An, F. Luty
“Rotational Tunneling of OH- and OD-Defects in KCl and NaCl Crystals - Anomalous Isotope Dependence of the Tunneling Splitting"
Phys. Rev. Lett. 85, 5591 (2000)
C. Enss, S. Ludwig, M. Kreft, C. P. An, F. Luty,
“Dielectric Relaxation of Interacting Hydroxid Ions in KCl Crystals"
Physica B 263/264, 129 (1999)