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Open Quantum Systems Decoherence

Steady-State Entanglement in the Nuclear Spin Dynamics of a Double Quantum Dot

arXiv
Authors: Martin J. A. Schuetz, Eric M. Kessler, Lieven M. K. Vandersypen, J. Ignacio Cirac, Geza Giedke

Year

2013

Paper ID

33224

Status

Preprint

Abstract Read

~2 min

Abstract Words

85

Citations

N/A

Abstract

We propose a scheme for the deterministic generation of steady-state entanglement between the two nuclear spin ensembles in an electrically defined double quantum dot. Due to quantum interference in the collective coupling to the electronic degrees of freedom, the nuclear system is actively driven into a two-mode squeezed-like target state. The entanglement build-up is accompanied by a self-polarization of the nuclear spins towards large Overhauser field gradients. Moreover, the feedback between the electronic and nuclear dynamics leads to multi-stability and criticality in the steady-state solutions.

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  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
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  • We propose a scheme for the deterministic generation of steady-state entanglement between the two nuclear spin ensembles in an electrically defined double quantum dot.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1308.3079 [2] arXiv https://arxiv.org/abs/1308.3079 [3] Publisher https://arxiv.org/abs/1308.3079

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