Generating Entanglement and Squeezed States of Nuclear Spins in Quantum Dots
Name
Rudner-2011-Generating Entanglement and Squeezed States.pdf
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Author(s)
Rudner, M. S.
Vandersypen, L. M. K.
Vuletic, Vladan
Levitov, Leonid
Date Issued
November 2011
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Rudner, M. et al. “Generating Entanglement and Squeezed States of Nuclear Spins in Quantum Dots.” Physical Review Letters 107.20 (2011): n. pag. Web. 9 Feb. 2012. © 2011 American Physical Society
Version
Final published version
Abstract
We present a scheme for achieving coherent spin squeezing of nuclear spin states in semiconductor quantum dots. The nuclear polarization dependence of the electron spin resonance generates a unitary evolution that drives nuclear spins into a collective entangled state. The polarization dependence of the resonance generates an area-preserving, twisting dynamics that squeezes and stretches the nuclear spin Wigner distribution without the need for nuclear spin flips. Our estimates of squeezing times indicate that the entanglement threshold can be reached in current experiments.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.107.206806
