- Tytuł:
- Entanglement Detection by Current Measurements in Double Quantum Dot System
- Autorzy:
-
Busz, P.
Rożek, P.
Tomaszewski, D.
Martinek, J. - Powiązania:
- https://bibliotekanauki.pl/articles/1386781.pdf
- Data publikacji:
- 2015-02
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
03.67.Mn
03.67.Bg
73.23.-b - Opis:
- The development of quantum computing in quantum dots systems requires highly efficient and continuous solid-state source of spatially separated spin-entangled electrons. One of the approaches is a use of double quantum dot system connected to superconducting lead, where Cooper pairs provide a source of naturally entangled electrons. Apart from the source, an useful tool for detection of quantum entanglement is needed. We present entanglement detection by the ferromagnetic electrodes using entanglement witness operator method and direct measurement of spin polarized current in the system. We investigate requirements that have to be fulfilled by ferromagnetic detectors.
- Źródło:
-
Acta Physica Polonica A; 2015, 127, 2; 490-492
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł