Zobrazeno 1 - 10
of 394
pro vyhledávání: '"Marciani, M."'
Publikováno v:
Phys. Rev. B 95, 125433 (2017)
At low temperature, information can be stored in the orientation of the localized magnetic moment of an adatom. However, scattering of electrons and phonons with the nanomagnet leads its state to have incoherent classical dynamics and might cause fas
Externí odkaz:
http://arxiv.org/abs/1609.00261
Publikováno v:
Physica E 77, 54-64 (2016)
We calculate the joint distribution $P(S,Q)$ of the scattering matrix $S$ and time-delay matrix $Q=-i\hbar S^\dagger dS/dE$ of a chaotic quantum dot coupled by point contacts to metal electrodes. While $S$ and $Q$ are statistically independent for ba
Externí odkaz:
http://arxiv.org/abs/1506.05995
Publikováno v:
Phys. Rev. Lett. 114, 166803 (2015)
In many of the experimental systems that may host Majorana zero modes, a so-called chiral symmetry exists that protects overlapping zero modes from splitting up. This symmetry is operative in a superconducting nanowire that is narrower than the spin-
Externí odkaz:
http://arxiv.org/abs/1412.3998
Publikováno v:
JETP 119, 1018-1027 (2014)
The quasi-bound states of a superconducting quantum dot that is weakly coupled to a normal metal appear as resonances in the Andreev reflection probability, measured via the differential conductance. We study the evolution of these Andreev resonances
Externí odkaz:
http://arxiv.org/abs/1405.6896
Publikováno v:
Phys. Rev. B 90, 045403 (2014)
We derive the statistics of the time-delay matrix (energy derivative of the scattering matrix) in an ensemble of superconducting quantum dots with chaotic scattering (Andreev billiards), coupled ballistically to $M$ conducting modes (electron-hole mo
Externí odkaz:
http://arxiv.org/abs/1405.3115
Publikováno v:
Phys. Rev. B 88, 214508 (2013)
Since their discovery, it has been suggested that pairing in pnictides can be mediated by spin fluctuations between hole and electron bands. In this view, multiband superconductivity would substantially differ from other systems like MgB2, where pair
Externí odkaz:
http://arxiv.org/abs/1306.5545
Publikováno v:
In Physica E: Low-dimensional Systems and Nanostructures August 2016 82:106-116
Publikováno v:
In Physica E: Low-dimensional Systems and Nanostructures March 2016 77:54-64
Akademický článek
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Autor:
Marciani, M.
Publikováno v:
Casimir PhD Series
The thesis mainly contributes to the characterization of Majorana fermions as they appear in the Condensed Matter context. Large attention is devoted to discuss signatures in the density of states and transport observables of unpaired Majorana zero m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3b6343958e789c49090bd2b676d30b9c
https://hdl.handle.net/1887/49722
https://hdl.handle.net/1887/49722