Generating Entanglement and Squeezed States of Nuclear Spins in Quantum Dots

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...

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Main Authors: Rudner, M. S., Vandersypen, L. M. K., Vuletic, Vladan, Levitov, Leonid
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society (APS) 2012
Online Access:http://hdl.handle.net/1721.1/69064
https://orcid.org/0000-0002-4268-731X
https://orcid.org/0000-0002-9786-0538
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author Rudner, M. S.
Vandersypen, L. M. K.
Vuletic, Vladan
Levitov, Leonid
author2 Massachusetts Institute of Technology. Department of Physics
author_facet Massachusetts Institute of Technology. Department of Physics
Rudner, M. S.
Vandersypen, L. M. K.
Vuletic, Vladan
Levitov, Leonid
author_sort Rudner, M. S.
collection MIT
description 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.
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spelling mit-1721.1/690642022-09-30T01:10:21Z Generating Entanglement and Squeezed States of Nuclear Spins in Quantum Dots Rudner, M. S. Vandersypen, L. M. K. Vuletic, Vladan Levitov, Leonid Massachusetts Institute of Technology. Department of Physics Vuletic, Vladan Vuletic, Vladan Levitov, Leonid 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. United States. Army Research Office United States. Defense Advanced Research Projects Agency United States. Intelligence Advanced Research Projects Activity National Science Foundation (U.S.). (Grant No. No. PHY-0855052) National Science Foundation (U.S.). (Grant No. No. PHY-0646094) National Science Foundation (U.S.). (Grant No. DMR-090647) MIT-Harvard Center for Ultracold Atoms European Research Council (Starting Grant) Foundation for Fundamental Research on Matter (Netherlands) 2012-02-09T18:04:43Z 2012-02-09T18:04:43Z 2011-11 2011-06 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/69064 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 https://orcid.org/0000-0002-4268-731X https://orcid.org/0000-0002-9786-0538 en_US http://dx.doi.org/10.1103/PhysRevLett.107.206806 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS
spellingShingle Rudner, M. S.
Vandersypen, L. M. K.
Vuletic, Vladan
Levitov, Leonid
Generating Entanglement and Squeezed States of Nuclear Spins in Quantum Dots
title Generating Entanglement and Squeezed States of Nuclear Spins in Quantum Dots
title_full Generating Entanglement and Squeezed States of Nuclear Spins in Quantum Dots
title_fullStr Generating Entanglement and Squeezed States of Nuclear Spins in Quantum Dots
title_full_unstemmed Generating Entanglement and Squeezed States of Nuclear Spins in Quantum Dots
title_short Generating Entanglement and Squeezed States of Nuclear Spins in Quantum Dots
title_sort generating entanglement and squeezed states of nuclear spins in quantum dots
url http://hdl.handle.net/1721.1/69064
https://orcid.org/0000-0002-4268-731X
https://orcid.org/0000-0002-9786-0538
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