Dynamics of Entanglement between a Quantum Dot Spin Qubit and a Photon Qubit inside a Semiconductor High-Q Nanocavity
Joint Authors
Schoenfeld, Winston Vaughan
Leuenberger, Michael Niklaus
Gonzalez, Gabriel
Seigneur, Hubert Pascal
Source
Advances in Mathematical Physics
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-31, 31 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-03-28
Country of Publication
Egypt
No. of Pages
31
Main Subjects
Abstract EN
We investigate in this paper the dynamics of entanglement between a QD spin qubit and a single photon qubit inside a quantum network node, as well as its robustness against various decoherence processes.
First, the entanglement dynamics is considered without decoherence.
In the small detuning regime (Δ=78 μeV), there are three different conditions for maximum entanglement, which occur after 71, 93, and 116 picoseconds of interaction time.
In the large detuning regime (Δ=1.5 meV), there is only one peak for maximum entanglement occurring at 625 picoseconds.
Second, the entanglement dynamics is considered with decoherence by including the effects of spin-nucleus and hole-nucleus hyperfine interactions.
In the small detuning regime, a decent amount of entanglement (35% entanglement) can only be obtained within 200 picoseconds of interaction.
Afterward, all entanglement is lost.
In the large detuning regime, a smaller amount of entanglement is realized, namely, 25%.
And, it lasts only within the first 300 picoseconds.
American Psychological Association (APA)
Seigneur, Hubert Pascal& Gonzalez, Gabriel& Leuenberger, Michael Niklaus& Schoenfeld, Winston Vaughan. 2010. Dynamics of Entanglement between a Quantum Dot Spin Qubit and a Photon Qubit inside a Semiconductor High-Q Nanocavity. Advances in Mathematical Physics،Vol. 2010, no. 2010, pp.1-31.
https://search.emarefa.net/detail/BIM-464368
Modern Language Association (MLA)
Seigneur, Hubert Pascal…[et al.]. Dynamics of Entanglement between a Quantum Dot Spin Qubit and a Photon Qubit inside a Semiconductor High-Q Nanocavity. Advances in Mathematical Physics No. 2010 (2010), pp.1-31.
https://search.emarefa.net/detail/BIM-464368
American Medical Association (AMA)
Seigneur, Hubert Pascal& Gonzalez, Gabriel& Leuenberger, Michael Niklaus& Schoenfeld, Winston Vaughan. Dynamics of Entanglement between a Quantum Dot Spin Qubit and a Photon Qubit inside a Semiconductor High-Q Nanocavity. Advances in Mathematical Physics. 2010. Vol. 2010, no. 2010, pp.1-31.
https://search.emarefa.net/detail/BIM-464368
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-464368