Lukasz
Cywinski
Condensed Matter
Theory Center
2212 Physics Building
University of Maryland
College Park, MD 20742-4111
phone: (301) 405-6150
email: lcyw (at) umd (dot) edu
About me
Research interests
Publications
Links
Research interests:
Currently
I am working on modeling of decoherence in qubits. We have
a new paper
on
applying dynamical decoupling pulse sequences to the
superconducting qubits, and an even
newer preprint on using Keldysh formalism for calculation of
decoherence in spin-fermion model.
My previous research interests included:
- spin diffusion and its electrical expression in
semiconductors
- ultrafast light-induced demagnetization
- (III,Mn)V ferromagnetic semiconductors
- light absorption in disordered systems
Publications:
13) J. Wang, L. Cywinski, C. Sun,
J. Kono, H. Munekata, and L.J. Sham, "Femtosecond
demagnetization and hot hole relaxation in ferromagnetic GaMnAs", to
appear in PRB
arXiv:0804.0451
12) R.M. Lutchyn, L.
Cywinski, C.P. Nave, and S. Das Sarma, "A Spin-Fermion Model for Solid State
Quantum Decoherence",
arXiv:0803.3452
11) L. Cywinski, R.M. Lutchyn, C.P. Nave, and S. Das Sarma, "How to enhance dephasing time in
superconducting qubits"
Phys. Rev. B 77, 174509 (2008)
arXiv:0712.2225
10) L. Cywinski, H. Dery, P. Dalal, and L.J, Sham, “Electrical expression of spin
accumulation in ferromagnet/semiconductor structures”,
Mod. Phys. Lett. B 21,
1509 (2007),
arXiv:0709.2707
9) L. Cywinski and L.J. Sham, "Ultrafast
demagnetization in the sp-d model: a theoretical study",
Phys.
Rev. B 76, 045205 (2007)
cond-mat/0703049
8) H. Dery, P. Dalal, L. Cywinski, and L.J. Sham, "Spin-based logic in semiconductors for
reconfigurable large-scale circuits",
Nature
447, 573 (2007)
7) J. Wang, C. Sun, Y. Hashimoto, J. Kono, G.A. Khodaparast, L.
Cywinski, L.J. Sham, G.D. Sanders, C.J. Stanton, H. Munekata, "Ultrafast Magneto-Optics in Ferromagnetic
III-V Semiconductors",
J. Phys.:
Condens. Matter 18, R501 (2006)
6) H. Dery, L. Cywinski, and L.J. Sham,
"Spintronics for electrical measurement of light polarization",
J.
Appl. Phys. 100, 063713 (2006),
cond-mat/0512712
5) L. Cywinski, H. Dery, and L.J. Sham, "Electric readout of magnetization
dynamics in a ferromagnet-semiconductor system",
Appl.
Phys. Lett. 89, 042105 (2006),
cond-mat/0601642
4) K. Dziatkowski, L. Cywinski, W. Bardyszewski, A. Twardowski, H.
Saito, and K. Ando, "Influence of
disorder on the optical absorption in semiconductors: Application to
epitaxially grown III-V compounds",
Phys.
Rev. B 73, 235340 (2006)
3) H. Dery, L. Cywinski, and L.J. Sham, "Spin transference and magnetoresistance
amplification in a transistor",
Phys.
Rev. B 73, 161307(R)
(2006),
cond-mat/0507378
2) H. Dery, L. Cywinski, and L.J. Sham, "Lateral diffusive spin transport in
layered structures",
Phys.
Rev. B 73, 041306(R) (2006),
cond-mat/0510770
1) J. Wang, C. Sun, J. Kono, A. Oiwa, H. Munekata, L. Cywinski, and
L.J. Sham, "Ultrafast quenching of
ferromagnetism in InMnAs induced by intense laser irradiation",
Phys.
Rev. Lett. 95, 167401 (2005),
cond-mat/0504611
Links:
Last updated on May 13th 2008.