Origins and optimization of entanglement in plasmonically coupled quantum dots
Abstract
In this paper, a system of two or more quantum dots interacting with a dissipative plasmonic nanostructure is investigated in detail by using a cavity quantum electrodynamics approach with a model Hamiltonian. We focus on determining and understanding system configurations that generate multiple bipartite quantum entanglements between the occupation states of the quantum dots. These configurations include allowing for the quantum dots to be asymmetrically coupled to the plasmonic system. Analytical solution of a simplified limit for an arbitrary number of quantum dots and numerical simulations and optimization for the two- and three-dot cases are used to develop guidelines for maximizing the bipartite entanglements. For any number of quantum dots, we show that through simple starting states and parameter guidelines, one quantum dot can be made to share a strong amount of bipartite entanglement with all other quantum dots in the system, while entangling all other pairs to a lesser degree.
- Authors:
-
- Cornell Univ., Ithaca, NY (United States); Argonne National Lab. (ANL), Lemont, IL (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States)
- Univ. of Maryland Baltimore County (UMBC), Baltimore, MD (United States)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Scientific User Facilities Division; USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
- OSTI Identifier:
- 1366466
- Alternate Identifier(s):
- OSTI ID: 1290314
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review A
- Additional Journal Information:
- Journal Volume: 94; Journal Issue: 2; Journal ID: ISSN 2469-9926
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Otten, Matthew, Larson, Jeffrey, Min, Misun, Wild, Stefan M., Pelton, Matthew, and Gray, Stephen K. Origins and optimization of entanglement in plasmonically coupled quantum dots. United States: N. p., 2016.
Web. doi:10.1103/PhysRevA.94.022312.
Otten, Matthew, Larson, Jeffrey, Min, Misun, Wild, Stefan M., Pelton, Matthew, & Gray, Stephen K. Origins and optimization of entanglement in plasmonically coupled quantum dots. United States. https://doi.org/10.1103/PhysRevA.94.022312
Otten, Matthew, Larson, Jeffrey, Min, Misun, Wild, Stefan M., Pelton, Matthew, and Gray, Stephen K. Thu .
"Origins and optimization of entanglement in plasmonically coupled quantum dots". United States. https://doi.org/10.1103/PhysRevA.94.022312. https://www.osti.gov/servlets/purl/1366466.
@article{osti_1366466,
title = {Origins and optimization of entanglement in plasmonically coupled quantum dots},
author = {Otten, Matthew and Larson, Jeffrey and Min, Misun and Wild, Stefan M. and Pelton, Matthew and Gray, Stephen K.},
abstractNote = {In this paper, a system of two or more quantum dots interacting with a dissipative plasmonic nanostructure is investigated in detail by using a cavity quantum electrodynamics approach with a model Hamiltonian. We focus on determining and understanding system configurations that generate multiple bipartite quantum entanglements between the occupation states of the quantum dots. These configurations include allowing for the quantum dots to be asymmetrically coupled to the plasmonic system. Analytical solution of a simplified limit for an arbitrary number of quantum dots and numerical simulations and optimization for the two- and three-dot cases are used to develop guidelines for maximizing the bipartite entanglements. For any number of quantum dots, we show that through simple starting states and parameter guidelines, one quantum dot can be made to share a strong amount of bipartite entanglement with all other quantum dots in the system, while entangling all other pairs to a lesser degree.},
doi = {10.1103/PhysRevA.94.022312},
journal = {Physical Review A},
number = 2,
volume = 94,
place = {United States},
year = {Thu Aug 11 00:00:00 EDT 2016},
month = {Thu Aug 11 00:00:00 EDT 2016}
}
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