Subdecoherence Time Generation and Detection of Orbital Entanglement in Quantum Dots
(2015) In Physical Review Letters 114.- Abstract
- Recent experiments have demonstrated subdecoherence time control of individual single-electron orbital qubits. Here we propose a quantum-dot-based scheme for generation and detection of pairs of orbitally entangled electrons on a time scale much shorter than the decoherence time. The electrons are entangled, via two-particle interference, and transferred to the detectors during a single cotunneling event, making the scheme insensitive to charge noise. For sufficiently long detector dot lifetimes, cross-correlation detection of the dot charges can be performed with real-time counting techniques, providing for an unambiguous short-time Bell inequality test of orbital entanglement.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5386533
- author
- Brange, Fredrik LU ; Malkoc, Ognjen LU and Samuelsson, Peter LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 114
- article number
- 176803
- publisher
- American Physical Society
- external identifiers
-
- wos:000353547100012
- pmid:25978249
- scopus:84930225050
- pmid:25978249
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.114.176803
- language
- English
- LU publication?
- yes
- id
- a90ccdf9-f8d2-43a0-b9e0-73f920fdf747 (old id 5386533)
- date added to LUP
- 2016-04-01 10:24:49
- date last changed
- 2023-11-09 20:12:09
@article{a90ccdf9-f8d2-43a0-b9e0-73f920fdf747, abstract = {{Recent experiments have demonstrated subdecoherence time control of individual single-electron orbital qubits. Here we propose a quantum-dot-based scheme for generation and detection of pairs of orbitally entangled electrons on a time scale much shorter than the decoherence time. The electrons are entangled, via two-particle interference, and transferred to the detectors during a single cotunneling event, making the scheme insensitive to charge noise. For sufficiently long detector dot lifetimes, cross-correlation detection of the dot charges can be performed with real-time counting techniques, providing for an unambiguous short-time Bell inequality test of orbital entanglement.}}, author = {{Brange, Fredrik and Malkoc, Ognjen and Samuelsson, Peter}}, issn = {{1079-7114}}, language = {{eng}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Subdecoherence Time Generation and Detection of Orbital Entanglement in Quantum Dots}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.114.176803}}, doi = {{10.1103/PhysRevLett.114.176803}}, volume = {{114}}, year = {{2015}}, }