Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Polianski, M. L."'
Autor:
Polianski, M. L., Buttiker, M.
We consider multi-terminal mesoscopic transport through a well-conducting chaotic quantum cavity using random matrix theory. Four-probe resistance vanishes on the average and is not affected by weak localization. Its fluctuations are given by a singl
Externí odkaz:
http://arxiv.org/abs/1001.2492
Autor:
Polianski, M. L.
Publikováno v:
Phys. Rev. B 80, 241301(R) (2009)
The magnitude of the inverse Faraday effect (IFE), a static magnetization due to an ac electric field, can be strongly increased in a mesoscopic sample, sensitive to time-reversal symmetry (TRS) breaking. Random rectification of ac voltages leads to
Externí odkaz:
http://arxiv.org/abs/0908.3611
Publikováno v:
New J. Phys. 11, 113025 (2009)
We report a systematic experimental study of mesoscopic conductance fluctuations in superconductor/normal/superconductor (SNS) devices Nb/InAs-nanowire/Nb. These fluctuations far exceed their value in the normal state and strongly depend on temperatu
Externí odkaz:
http://arxiv.org/abs/0901.4242
Autor:
Polianski, M. L., Buttiker, M.
Publikováno v:
Phys. Rev. B 76, 205308 (2007)
We investigate the nonlinear current-voltage characteristic of mesoscopic conductors and the current generated through rectification of an alternating external bias. To leading order in applied voltages both the nonlinear and the rectified current ar
Externí odkaz:
http://arxiv.org/abs/0707.3159
Autor:
Polianski, M. L., Buttiker, M.
Publikováno v:
Physica E 40, 67 (2007)
We examine contributions to the dc-current of mesoscopic samples which are non-linear in applied voltage. In the presence of a magnetic field, the current can be decomposed into components which are odd (antisymmetric) and even (symmetric) under flux
Externí odkaz:
http://arxiv.org/abs/cond-mat/0701024
Autor:
Buttiker, M., Polianski, M. L.
Publikováno v:
J. Phys. A: Math. Gen. 38, 10559 (2005).
We present a discussion of the charge response and the charge fluctuations of mesoscopic chaotic cavities in terms of a generalized Wigner-Smith matrix. The Wigner-Smith matrix is well known in investigations of time-delay of quantum scattering. It i
Externí odkaz:
http://arxiv.org/abs/cond-mat/0508220
Publikováno v:
Phys. Rev. B 72, 161302(R) (2005)
We investigate shot noise of photon-excited electron-hole pairs in open multi-terminal, multi-channel chaotic dots. Coulomb interactions in the dot are treated self-consistently giving a gauge-invariant expression for the finite frequency correlation
Externí odkaz:
http://arxiv.org/abs/cond-mat/0507336
Publikováno v:
Phys. Rev. B 72, 155326 (2005)
Motivated by a recent experiment by L.-H. Reydellet et al., Phys. Rev. Lett. 90, 176803 (2003), we discuss an interpretation of photon-assisted shot noise in mesoscopic multiprobe conductors in terms of electron-hole pair excitations. AC-voltages are
Externí odkaz:
http://arxiv.org/abs/cond-mat/0507276
Autor:
Polianski, M. L., Brouwer, P. W.
Publikováno v:
Phys. Rev. Lett. 92, 026602 (2004)
We show that an unpolarized electric current incident perpendicular to the plane of a thin ferromagnet can excite a spin-wave instability transverse to the current direction if source and drain contacts are not symmetric. The instability, which is dr
Externí odkaz:
http://arxiv.org/abs/cond-mat/0304069
Autor:
Polianski, M L, Brouwer, P W
Publikováno v:
J. Phys. A: Math. Gen. 36, 3215 (2003)
Random matrix theory can be used to describe the transport properties of a chaotic quantum dot coupled to leads. In such a description, two approaches have been taken in the literature, considering either the Hamiltonian of the dot or its scattering
Externí odkaz:
http://arxiv.org/abs/cond-mat/0208408