Zobrazeno 1 - 10
of 497
pro vyhledávání: '"Grabert, H."'
Publikováno v:
Phys. Rev. B 83, 165439 (2011)
We present a detailed comparison between theoretical predictions on electron scattering processes in metallic single-walled carbon nanotubes with defects and experimental data obtained by scanning tunneling spectroscopy of Ar$^+$ irradiated nanotubes
Externí odkaz:
http://arxiv.org/abs/1011.1423
Publikováno v:
Phys. Rev. A 80, 063603 (2009)
We propose an experimental setup for the observation of quasi-relativistic massless Fermions. It is based on a T_3 optical lattice, realized by three pairs of counter-propagating lasers, filled with fermionic cold atoms. We show that in the long wave
Externí odkaz:
http://arxiv.org/abs/0909.3035
Publikováno v:
Phys. Rev. Lett. 102, 245505 (2009)
Intratube quantum dots showing particle-in-a-box-like states with level spacings up to 200meV are realized in metallic single-walled carbon nanotubes by means of low dose medium energy Ar irradiation. Fourier transform scanning tunneling spectroscopy
Externí odkaz:
http://arxiv.org/abs/0812.3883
Publikováno v:
Nanotechnology 18, 265403 (2007)
We report experiments on aluminum nanowires in ultra-high vacuum at room temperature that reveal a periodic spectrum of exceptionally stable structures. Two "magic" series of stable structures are observed: At low conductance, the formation of stable
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703589
Publikováno v:
Phys. Rev. B 75, 045332 (2007)
The electrical current noise of a quantum wire is expected to increase with increasing applied voltage. We show that this intuition can be wrong. Specifically, we consider a single channel quantum wire with impurities and with a capacitive coupling t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609227
Publikováno v:
Fluctuations and Noise in Materials II, edited by P. Svedlindh, D. Popovic, and M.B.Weissmann, Proceedings of SPIE Vol. 5843 (SPIE, Bellingham, WA, 2005)
The current noise of a voltage biased interacting quantum wire adiabatically connected to metallic leads is computed in presence of an impurity in the wire. We find that in the weak backscattering limit the Fano factor characterizing the ratio betwee
Externí odkaz:
http://arxiv.org/abs/cond-mat/0505722
Publikováno v:
Phys. Rev. Lett. 92, 226405 (2004)
The current noise of a voltage biased interacting quantum wire adiabatically connected to metallic leads is computed in presence of an impurity in the wire. We find that in the weak backscattering limit the Fano factor characterizing the ratio betwee
Externí odkaz:
http://arxiv.org/abs/cond-mat/0402479
Autor:
Trauzettel, B., Grabert, H.
Publikováno v:
Phys. Rev. B 67, 245101 (2003)
Finite frequency current noise is studied theoretically for a 1D electron system in presence of a scatterer. In contrast to zero frequency shot noise, finite frequency noise shows spatial oscillations at high frequencies with wavelength $\pi v_F/\ome
Externí odkaz:
http://arxiv.org/abs/cond-mat/0212441
Publikováno v:
"Quantum Physics at Mesoscopic Scale," D. C. Glattli, M. Sanquer and J. Tran Thanh Van eds. (EDP Sciences, Les Ulis, France, 2000), pp. 49-53
The conducting and thermodynamic properties of ballistic metallic nanocontacts with smooth shapes are investigated. All properties are related to the electronic scattering matrix, which is evaluated in the WKB approximation for independent electrons
Externí odkaz:
http://arxiv.org/abs/cond-mat/0210533