J 2010

Quantum entanglement in lateral GaAs/AlGaAs quantum dot molecules

KŘÁPEK, Vlastimil, Petr KLENOVSKÝ, Armando RASTELLI, Oliver G SCHMIDT, Dominik MUNZAR et. al.

Basic information

Original name

Quantum entanglement in lateral GaAs/AlGaAs quantum dot molecules

Authors

KŘÁPEK, Vlastimil (203 Czech Republic, belonging to the institution), Petr KLENOVSKÝ (203 Czech Republic, belonging to the institution), Armando RASTELLI (380 Italy), Oliver G SCHMIDT (276 Germany) and Dominik MUNZAR (203 Czech Republic, guarantor, belonging to the institution)

Edition

Journal of Physics: Conference Series, Institute of Physics Publishing, 2010, 1742-6588

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10302 Condensed matter physics

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/00216224:14310/10:00047199

Organization unit

Faculty of Science

UT WoS

000294907400027

Keywords in English

Excitons and related phenomena; Tunneling; Quantum dots; Semiconductor compounds

Tags

International impact, Reviewed
Změněno: 28/4/2011 15:20, prof. Mgr. Dominik Munzar, Dr.

Abstract

V originále

We calculate the excitonic structure of pairs of GaAs/AlGaAs quantum dots forming lateral molecules and obtain the entanglement of exciton states. The following advantages of the lateral geometry over the vertical one are found: (1) The energy structures of the dots forming a molecule can be in principle identical. (2) Comparable tunneling of electrons and holes ensures a high entanglement of antisymmetric excitons. A drawback of existing structures are very low tunneling energies, which make the entanglement vulnerable against differences in the sizes and shapes of both dots.

Links

GA202/09/0676, research and development project
Name: Vliv krycích vrstev na elektronové stavy v kvantových tečkách
Investor: Czech Science Foundation
MSM0021622410, plan (intention)
Name: Fyzikální a chemické vlastnosti pokročilých materiálů a struktur
Investor: Ministry of Education, Youth and Sports of the CR, Physical and chemical properties of advanced materials and structures
MUNI/A/1047/2009, interní kód MU
Name: Struktura, elektronová struktura a optická odezva pokročilých materiálů
Investor: Masaryk University, Category A