Szczegóły publikacji
Opis bibliograficzny
Generation of spin-dependent coherent states in a quantum wire / J. PAWŁOWSKI, P. SZUMNIAK, S. BEDNAREK // Physical Review. B ; ISSN 2469-9950. — Tytuł poprz.: Physical Review B, Condensed Matter and Materials Physics ; ISSN: 1098-0121. — 2016 — vol. 94 iss. 15, s. 155407-1–155407-6. — Bibliogr. s. 155407-5–155407-6. — Publikacja dostępna online od: 2016-10-06. — P. Szumniak - dod. afiliacja: University of Basel, Switzerland
Autorzy (3)
Dane bibliometryczne
| ID BaDAP | 103164 |
|---|---|
| Data dodania do BaDAP | 2017-01-19 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevB.94.155407 |
| Rok publikacji | 2016 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Physical Review, B |
Abstract
We propose an all-electrically controlled nanodevice-a gated semiconductor nanowire-capable of generating a coherent state of a single electron trapped in a harmonic oscillator or superposition of such coherent states-the Schrodinger cat state. In the proposed scheme, the electron in the ground state of the harmonic potential is driven by resonantly oscillating Rashba spin-orbit coupling. This allows for the creation of the Schrodinger cat state with superposition amplitudes depending on the initial electron spin state. Such a method can be used for initialization of a single-spin qubit defined in a coherent state. The harmonic confinement potential along the InSb nanowire and the modulation of the Rashba spin-orbit coupling is obtained by proper gating. The results are supported by realistic three-dimensional time-dependent self-consistent Poisson-Schrodinger calculations.