Emission of time-bin entangled particles into helical edge states

Hofer, Patrick P. and Buettiker, Markus. (2013) Emission of time-bin entangled particles into helical edge states. Physical Review B, 88 (24). p. 241308.

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Official URL: https://edoc.unibas.ch/82987/

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We propose a single-particle source which emits into the helical edge states of a two-dimensional quantum spin Hall insulator. Without breaking time-reversal symmetry, this source acts like a pair of noiseless single-electron emitters which each inject separately into a chiral edge state. By locally breaking time-reversal symmetry, the source becomes a proper single-particle emitter which exhibits shot noise. Due to its intrinsic helicity, this system can be used to produce time-bin entangled pairs of electrons in a controlled manner. The noise created by the source contains information on the emitted wave packets and is proportional to the concurrence of the emitted state.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretical Quantum Physics (Potts)
UniBasel Contributors:Potts, Patrick
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:26 May 2021 07:18
Deposited On:10 May 2021 15:39

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